Delete .vs directory

.gitignore

@@ -1,2 +0,0 @@
-# Project exclude paths
-/out/

Lab2/Program.cs

@@ -0,0 +1,32 @@
+using System;
+
+public class Laba2
+{
+    
+
+    public static void Main(string[] args)
+    {
+        const int a = 2;
+        int[][] b = new[]
+        {
+            new int[] { 1, 2, 8 },
+            new int[] { 3, 4, 5 },
+            new int[] { 6, 7, 9 }
+        };
+        calculation(b, a);
+    }
+
+    private static int[][] calculation(int[][] b, int a)
+    {
+        int[][]c = new int[b.Length][b[0].Length]; //недопустимий специфікатор рангу: вимагається "," або "]";
+        for (int i = 0; i < b.Length; i++)
+        {
+            c[i] = new int[b[i].Length];
+            for (int j = 0; j < b[i].Length; j++)
+            {
+                c[i][j] = b[i][j] * a;
+            }
+        }
+        return c;
+    }
+}

OOP_IO-2x_2023.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

lab1_with_extracted_method/Program.cs

@@ -0,0 +1,61 @@
+using System;
+
+public class Lab1
+{
+    public static void Main(String[] args)
+    {
+        /*o1 = +
+         c3 = 0
+         o2 = *
+         c7 = short */
+
+        // var A = 4;
+        // short B = 3;
+        // var N = 10;
+        // var M = 10;
+        //
+        // var C = 1;
+        // var s = 0;
+        //
+        // bool divisionByZero=false;
+
+
+        Calculation(4, 3, 10, 10, 1, false);
+    }
+
+    public static void Calculation(int A, int C, int N, short B, int M, bool divisionByZero)
+    {
+        var s = 0;
+        if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M))
+        {
+            Console.WriteLine("Division by zero!");
+            return;
+        }
+
+        for (int i = A; i <= N; i++)
+        {
+            if (i + C == 0)
+            {
+                Console.WriteLine("Division by zero!");
+                divisionByZero = true;
+                break;
+            }
+
+            for (short j = B; j <= M; j++)
+            {
+                if (j == 0)
+                {
+                    Console.WriteLine("Оскільки j = 0, то сума просто буде 0");
+                    break;
+                }
+
+                s += (i * j) / (i + C);
+            }
+        }
+
+        if (!divisionByZero)
+        {
+            Console.WriteLine($"s = {s};");
+        }
+    }
+}

lab1_with_extracted_method/lab1_with_extracted_method.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

lab1_with_extracted_method/lab1_with_extracted_method.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32901.215
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "lab1_with_extracted_method", "lab1_with_extracted_method.csproj", "{24A496CD-EC4E-4EBB-AD75-5C0C0EFDC4D8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{24A496CD-EC4E-4EBB-AD75-5C0C0EFDC4D8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{24A496CD-EC4E-4EBB-AD75-5C0C0EFDC4D8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{24A496CD-EC4E-4EBB-AD75-5C0C0EFDC4D8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{24A496CD-EC4E-4EBB-AD75-5C0C0EFDC4D8}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {BB8782D1-9F42-4685-8447-6B8E6181678C}
+	EndGlobalSection
+EndGlobal

lab1_with_extracted_method/obj/Debug/net6.0/.NETCoreApp,Version=v6.0.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v6.0", FrameworkDisplayName = "")]

lab1_with_extracted_method/obj/Debug/net6.0/lab1_with_extracted_method.AssemblyInfo.cs

@@ -0,0 +1,23 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Этот код создан программой.
+//     Исполняемая версия:4.0.30319.42000
+//
+//     Изменения в этом файле могут привести к неправильной работе и будут потеряны в случае
+//     повторной генерации кода.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("lab1_with_extracted_method")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyProductAttribute("lab1_with_extracted_method")]
+[assembly: System.Reflection.AssemblyTitleAttribute("lab1_with_extracted_method")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Создано классом WriteCodeFragment MSBuild.
+

lab1_with_extracted_method/obj/Debug/net6.0/lab1_with_extracted_method.AssemblyInfoInputs.cache

@@ -0,0 +1 @@
+b0d331248e7cf508f22410bff3fa4c5190b3e6ab

lab1_with_extracted_method/obj/Debug/net6.0/lab1_with_extracted_method.GeneratedMSBuildEditorConfig.editorconfig

@@ -0,0 +1,10 @@
+is_global = true
+build_property.TargetFramework = net6.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = 
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = lab1_with_extracted_method
+build_property.ProjectDir = C:\Users\user\source\repos\OOP_IO-2x_2023\lab1_with_extracted_method\

lab1_with_extracted_method/obj/Debug/net6.0/lab1_with_extracted_method.GlobalUsings.g.cs

@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;

lab1_with_extracted_method/obj/lab1_with_extracted_method.csproj.nuget.dgspec.json

@@ -0,0 +1,68 @@
+{
+  "format": 1,
+  "restore": {
+    "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj": {}
+  },
+  "projects": {
+    "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj": {
+      "version": "1.0.0",
+      "restore": {
+        "projectUniqueName": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj",
+        "projectName": "lab1_with_extracted_method",
+        "projectPath": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj",
+        "packagesPath": "C:\\Users\\user\\.nuget\\packages\\",
+        "outputPath": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\obj\\",
+        "projectStyle": "PackageReference",
+        "fallbackFolders": [
+          "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
+        ],
+        "configFilePaths": [
+          "C:\\Users\\user\\AppData\\Roaming\\NuGet\\NuGet.Config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+        ],
+        "originalTargetFrameworks": [
+          "net6.0"
+        ],
+        "sources": {
+          "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+          "C:\\Program Files\\dotnet\\library-packs": {},
+          "https://api.nuget.org/v3/index.json": {}
+        },
+        "frameworks": {
+          "net6.0": {
+            "targetAlias": "net6.0",
+            "projectReferences": {}
+          }
+        },
+        "warningProperties": {
+          "warnAsError": [
+            "NU1605"
+          ]
+        }
+      },
+      "frameworks": {
+        "net6.0": {
+          "targetAlias": "net6.0",
+          "imports": [
+            "net461",
+            "net462",
+            "net47",
+            "net471",
+            "net472",
+            "net48",
+            "net481"
+          ],
+          "assetTargetFallback": true,
+          "warn": true,
+          "frameworkReferences": {
+            "Microsoft.NETCore.App": {
+              "privateAssets": "all"
+            }
+          },
+          "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\6.0.401\\RuntimeIdentifierGraph.json"
+        }
+      }
+    }
+  }
+}

lab1_with_extracted_method/obj/lab1_with_extracted_method.csproj.nuget.g.props

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
+    <RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
+    <ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
+    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">$(UserProfile)\.nuget\packages\</NuGetPackageRoot>
+    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">C:\Users\user\.nuget\packages\;C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages</NuGetPackageFolders>
+    <NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
+    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.3.0</NuGetToolVersion>
+  </PropertyGroup>
+  <ItemGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <SourceRoot Include="C:\Users\user\.nuget\packages\" />
+    <SourceRoot Include="C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages\" />
+  </ItemGroup>
+</Project>

lab1_with_extracted_method/obj/lab1_with_extracted_method.csproj.nuget.g.targets

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />

lab1_with_extracted_method/obj/project.assets.json

@@ -0,0 +1,74 @@
+{
+  "version": 3,
+  "targets": {
+    "net6.0": {}
+  },
+  "libraries": {},
+  "projectFileDependencyGroups": {
+    "net6.0": []
+  },
+  "packageFolders": {
+    "C:\\Users\\user\\.nuget\\packages\\": {},
+    "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages": {}
+  },
+  "project": {
+    "version": "1.0.0",
+    "restore": {
+      "projectUniqueName": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj",
+      "projectName": "lab1_with_extracted_method",
+      "projectPath": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj",
+      "packagesPath": "C:\\Users\\user\\.nuget\\packages\\",
+      "outputPath": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\obj\\",
+      "projectStyle": "PackageReference",
+      "fallbackFolders": [
+        "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
+      ],
+      "configFilePaths": [
+        "C:\\Users\\user\\AppData\\Roaming\\NuGet\\NuGet.Config",
+        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+      ],
+      "originalTargetFrameworks": [
+        "net6.0"
+      ],
+      "sources": {
+        "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+        "C:\\Program Files\\dotnet\\library-packs": {},
+        "https://api.nuget.org/v3/index.json": {}
+      },
+      "frameworks": {
+        "net6.0": {
+          "targetAlias": "net6.0",
+          "projectReferences": {}
+        }
+      },
+      "warningProperties": {
+        "warnAsError": [
+          "NU1605"
+        ]
+      }
+    },
+    "frameworks": {
+      "net6.0": {
+        "targetAlias": "net6.0",
+        "imports": [
+          "net461",
+          "net462",
+          "net47",
+          "net471",
+          "net472",
+          "net48",
+          "net481"
+        ],
+        "assetTargetFallback": true,
+        "warn": true,
+        "frameworkReferences": {
+          "Microsoft.NETCore.App": {
+            "privateAssets": "all"
+          }
+        },
+        "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\6.0.401\\RuntimeIdentifierGraph.json"
+      }
+    }
+  }
+}

lab1_with_extracted_method/obj/project.nuget.cache

@@ -0,0 +1,8 @@
+{
+  "version": 2,
+  "dgSpecHash": "VANdgElQYYOqAx91vfx9p1GWZX21FI7KRMpKYjMOBS/jaQDmnFh4D1hrZpo4+AA4DT9ZmEVXEUNcGLuCaXreTA==",
+  "success": true,
+  "projectFilePath": "C:\\Users\\user\\source\\repos\\OOP_IO-2x_2023\\lab1_with_extracted_method\\lab1_with_extracted_method.csproj",
+  "expectedPackageFiles": [],
+  "logs": []
+}

laboratorna1/Program.cs

@@ -0,0 +1,52 @@
+using System;
+
+public class Lab1
+{
+    public static void Main(String[] args)
+    {
+        /*o1 = +
+         c3 = 0
+         o2 = *
+         c7 = short */
+
+         var A = 4;
+         short B = 3;
+         var N = 10;
+         var M = 10;
+
+         var C = 1;
+         var s = 0;
+
+         bool divisionByZero=false;
+
+
+        if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M))
+        {
+            Console.WriteLine("Division by zero!");
+            return;
+        }
+      
+        for (int i = A; i <= N; i++)
+        {
+            if (i + C == 0) { 
+                Console.WriteLine("Division by zero!");
+                divisionByZero = true;
+                break; 
+            }
+            for (short j = B; j <= M; j++)
+            {
+                if (j == 0) {
+                    Console.WriteLine("Оскільки j = 0, то сума просто буде 0");
+                    break;
+                }
+                s += (i * j) / (i + C);
+            }
+        }
+
+        if (!divisionByZero)
+        {
+            Console.WriteLine($"s = {s};" );
+        }
+
+    }
+}

src/Lab1.java

@@ -0,0 +1,58 @@
+public class Lab1 {
+    public static void main(String[] args) {
+//        char c = 'a' + '1';
+        char c = 97;
+//        char c = '1';
+        System.out.println(c);
+        System.out.println((int) c);
+        c++;
+        System.out.println(c);
+        System.out.println((int) c);
+        System.out.println((double)'1'/'3');
+
+//        System.out.println( (double) 0 / 0 );
+//        System.out.println( Math.sqrt(-1) );
+        double s = 0;
+        /*for (int i = 1; i <= 3; i++) { // 1) ��������� � i = 1, 2) ���� � <= 3, 3) �������� 䳿 � �� �����,
+            System.out.println(i);     // 4) �������������� � �� 1, 5) ����������� �� ����� 2
+//            s = s + i;
+            s += i;
+        }*/
+        /*int[] array = new int[2];
+        for (int i = 0; i < array.length; i++) {
+
+        }*/
+        final int A = -3;
+        final int B = 0;
+        final int N = 2;
+        final int M = 2;
+
+        final int C = 1;
+//        boolean wasDivisionByZero = false;
+//        todo char
+//        todo[clear code] think about avoiding brackets
+        if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M)) {
+            System.out.println("Division by zero!");
+            return;
+        }
+/*myLabel:*/for (int i = A; i <= N /*&& !wasDivisionByZero*/; i++) {
+            /*if (i + C == 0) { // todo optimize
+                System.out.println("Division by zero!");
+                wasDivisionByZero = true;
+                break; //todo flag vs return;
+            }*/
+            for (int j = B; j <= M; j++) {
+                /*if (j == 0) {
+                    System.out.println("Division by zero!");
+                    return;
+//                    wasDivisionByZero = true;
+//                    break myLabel;
+                }*/
+                s += (double) (i / j) / (i + C);
+            }
+        }
+//        if (!wasDivisionByZero) {
+            System.out.println("s = " + s);
+//        }
+    }
+}

src/Lab2.java

@@ -0,0 +1,26 @@
+public class Lab2 {
+    public static void main(String[] args) {
+        int[] array = {1, 2, 3};
+        /*for (int i = 0; i < array.length; i++) {
+            if (i % 2 == 0) {
+                System.out.println("!" + array[i]);
+            } else {
+                System.out.println("?" + array[i]);
+            }
+        }*/
+
+        for (int i = 0; i < array.length; i+=2) {
+            System.out.println("!" + array[i]);
+        }
+
+        for (int i = 1; i < array.length; i+=2) {
+            System.out.println("?" + array[i]);
+        }
+
+//        зубчасті матриці
+        int[][] matrix = {
+                {1, 2},
+                {3}
+        };
+    }
+}

src/Main.java

@@ -3,6 +3,33 @@ public class Main {
         System.out.println(args[2]);
         System.out.println("Hello world!");
 //        System.out.println(1);
+
+        int a = 1;
+        int b = 2;
+        int c = 1;
+        int d = 1;
+
+        System.out.println(2&1);
+        System.out.println(2|1);
+        int aa = 2;
+
+        /*if (aa) {
+
+        }*/
+
+//        System.out.println("a"&"b");
+        System.out.println('a'&'b');
+
+        if ((a > b) & MyBooleanMethod()) {
+            System.out.println("?????????????????????????");
+        }
+
+
+    }
+
+    static boolean MyBooleanMethod() {
+        System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+        return true;
     }
 
     void myFunction() {

src/_12_Закревський_Данило_Сергійович/lab1/FirstLab.java

@@ -1,30 +0,0 @@
-import java.util.Scanner;
-
-public class FirstLab {
- 
-    public static void main(String[] args) {
-        Scanner scn = new Scanner(System.in);
-        final int C = 0; 
-        double S = 0.0;
-        System.out.print("Enter a: "); 
-        int a = scn.nextInt(); 
-        System.out.print("Enter b: ");
-        int b = scn.nextInt();
-        System.out.print("Enter n: ");
-        int n = scn.nextInt();
-        System.out.print("Enter m: ");
-        int m = scn.nextInt();
-        if ((a <= 0 & n >= 0) | (b <= 0 & m >= 0)){
-            System.out.println("Division by 0!"); 
-        } else {
-            for (char i = (char) a; i <= n; i++) {
-                for(char j = (char) b; j <= m; j++) {
-                        S += (double) (i % j) / (i + C);
-                }
-            }
-            System.out.printf("Result - %.3f", S);
-        }
-
-        scn.close();
-    }
-}

src/_12_Закревський_Данило_Сергійович/lab2/SecondLab.java

@@ -1,63 +0,0 @@
-import java.util.Scanner;
-import java.util.Random;
-
-public class SecondLab {
-
-    public static void main(String[] args) {
-        Scanner scn = new Scanner(System.in);
-        Random rnd = new Random();
-        System.out.print("Enter number of rows in matrix A: ");
-        int mA = scn.nextInt(); 
-        System.out.print("Enter the number of columns in matrix A: ");
-        int nA = scn.nextInt(); 
-        System.out.print("Enter number of rows in matrix B: ");
-        int mB = scn.nextInt(); 
-        System.out.print("Enter the number of columns in matrix B: ");
-        int nB = scn.nextInt(); 
-        long largest, sum = 0L; 
-        if(mA != mB || nA != nB) {
-            System.out.println("Unable to add matrices!"); 
-        } else {
-            long[][] matrixA = new long[mA][nA];
-            long[][] matrixB = new long[mB][nB]; 
-            long[][] matrixC = new long[mA][nA];
-
-            System.out.println("Matrix A: ");
-            for(int i = 0; i < mA; i++) {
-                for(int j = 0; j < nA; j++) {
-                    matrixA[i][j] = rnd.nextLong(10, 50) + 10;
-                    System.out.printf("|%d", matrixA[i][j]);      
-                }
-                System.out.println("|");
-            }
-            System.out.println("Matrix B: ");
-            for(int i = 0; i < nA; i++) {
-                for(int j = 0; j < nB; j++) {
-                    matrixB[i][j] = rnd.nextLong(10, 50) + 10;
-                    System.out.printf("|%d", matrixB[i][j]); 
-                }
-                System.out.println("|");
-            }
-            System.out.println("Matrix C: ");
-            for(int i = 0; i < mA; i++) {
-                for(int j = 0; j < nA; j++) {
-                    matrixC[i][j] = matrixA[i][j] + matrixB[i][j];
-                    System.out.printf("|%d", matrixC[i][j]);    
-                }
-                System.out.println("|");
-            }
-            for(long[] row: matrixC) {
-                largest = row[0];
-                for(long elem : row) {
-                    if(elem > largest) {
-                        largest = elem;    
-                    }
-                }
-                sum += largest;        
-            }
-            System.out.printf("Sum = %d", sum); 
-        }
-        scn.close();
-    }
-    
-}

src/_12_Закревський_Данило_Сергійович/lab3/ThirdLab.java

@@ -1,33 +0,0 @@
-import java.util.Scanner;
-
-public class ThirdLab {
-
-    public static void main(String[] args) {
-        Scanner scn = new Scanner(System.in);
-        System.out.print("Enter a string: "); 
-        String text = scn.nextLine();  
-        StringBuilder textBuilder = new StringBuilder(text); 
-        System.out.print("Enter a string to replace the words: ");
-        String replace = scn.nextLine(); 
-        System.out.print("Enter the length of the words to replace: ");
-        int length = scn.nextInt(); 
-        String[] words = textBuilder.toString().split("\\s+"); 
-        textBuilder.setLength(0);  
-        for(String word : words) {
-            if(word.charAt(word.length()-1) == '.' && word.length() - 1 == length) {
-                textBuilder.append(replace + ". "); 
-            } else if (word.charAt(word.length() - 1) == '!' && word.length() - 1 == length) {
-                textBuilder.append(replace + "! ");
-            } else if (word.charAt(word.length() - 1) == '?' && word.length() - 1 == length) { 
-                textBuilder.append(replace + "? ");
-            } else if (word.length() == length) {          
-                textBuilder.append(replace + " "); 
-            } else {
-                textBuilder.append(word + " ");
-            }
-        }
-
-        System.out.printf("Result: %s", textBuilder);
-        scn.close();
-    }
-}

src/_12_Закревський_Данило_Сергійович/lab4/Airplane.java

@@ -1,59 +0,0 @@
-import java.util.Comparator;
-
-public class Airplane {
-  private String name;
-	private String type; 
-	private int weight; 
-  private int amountOfEngines;
-  private int year; 
-	private String color; 
-	private int capacity;
-  private int price; 
-	
-
-  public Airplane(String name, String type, int weight, int amountOfEngines, int year, String color, int capacity, int price) {
-		this.name = name;
-    this.type = type;
-		this.weight = weight;
-		this.amountOfEngines = amountOfEngines;
-    this.year = year;
-		this.color = color;
-		this.capacity = capacity;
-    this.price = price;
-	}
-
-  public int getPrice() {
-      return price;
-  }
-
-  public int getYear() {
-      return year;
-  }
-
-  @Override
-  public String toString() {
-      return "Plane : " +
-              "name = " + name +
-              ", type = " + type +
-              ", weight = " + weight + " tons" +
-              ", amount of engines = " + amountOfEngines +
-              ", year = " + year + 
-              ", color = " + color + 
-              ", capacity = " + capacity + 
-              ", price = " + price + " millions dollars.";
-  }
-}
-
-class SortByPrice implements Comparator<Airplane> {
-    
-    public int compare(Airplane a, Airplane b) {
-        return a.getPrice() - b.getPrice();
-    }
-} 
-
-class SortByYear implements Comparator<Airplane> {
-
-    public int compare(Airplane a, Airplane b) {
-        return a.getYear() - b.getYear();
-    }
-}

src/_12_Закревський_Данило_Сергійович/lab4/FourthLab.java

@@ -1,32 +0,0 @@
-import java.util.Arrays;
-
-public class FourthLab {
-
-    public static void main(String[] args) {
-        final Airplane plane1 = new Airplane("Boeing 747", "passenger", 180, 4, 1970, "Lightblue", 467, 70);
-        final Airplane plane2 = new Airplane("Airbus A380", "passenger", 575, 4, 2003, "Orange", 850, 389);
-        final Airplane plane3 = new Airplane("General Dynamics F-16", "military", 9, 1, 1974, "Grey", 1, 45);
-        final Airplane plane4 = new Airplane("Boeing C-17 Globemaster III", "cargo", 130, 4, 1995, "Grey", 102, 340);
-        final Airplane plane5 = new Airplane("An-225 Mriya", "cargo", 285, 6, 1990, "White", 20, 500);
-        Airplane[] planes = {plane1, plane2, plane3, plane4, plane5};
-
-        System.out.println("List of planes: ");
-        for(Airplane plane : planes) {
-            System.out.println(plane);
-        }
-        System.out.println();
-
-        Arrays.sort(planes, new SortByPrice());
-        System.out.println("Sorted by price: ");  
-        for(Airplane plane : planes) {
-            System.out.println(plane);
-        }
-        System.out.println();
-
-        Arrays.sort(planes, new SortByYear().reversed());
-        System.out.println("Sorted by year: ");
-        for(Airplane plane : planes) {
-            System.out.println(plane);
-        }
-    }
-}

src/_12_Закревський_Данило_Сергійович/lab5/FifthLab.java

@@ -1,139 +0,0 @@
-import java.util.Scanner;
-
-public class FifthLab {
-
-    public static void main(String[] args) {
-        Scanner scn = new Scanner(System.in);
-        System.out.println("Enter a string: ");
-        String text = scn.nextLine();
-        StringBuilder textBuilder = new StringBuilder(text);
-        StringBuilder result = new StringBuilder();
-
-        System.out.print("Enter a string to replace the words: ");
-        String replace = scn.nextLine();
-        System.out.print("Enter the length of the words to replace: ");
-        int length = scn.nextInt();
-        
-        System.out.println("\nText before changes: ");
-        System.out.println(textBuilder);
-
-
-        String[] mySentence = textBuilder.toString().split("(?<=[!.?])\\s?");
-        for(String s: mySentence) {
-            StringBuilder sb = new StringBuilder(s);
-            Sentence sentence = new Sentence(sb, length, replace);
-            result.append(sentence.wordsSplit());
-        }
-
-        System.out.println("\nText after changes: ");
-        System.out.println(result);
-        scn.close();
-    }  
-}
-
-class Sentence {
-    
-    private final StringBuilder sentence;
-    private final int length;
-    private final String replace;
-
-    public Sentence(StringBuilder sentence, int length, String replace) {
-        this.sentence = sentence;
-        this.length = length;
-        this.replace = replace;
-    }
-
-    public StringBuilder wordsSplit() {
-        StringBuilder ReturnSentence = new StringBuilder();
-        String text = sentence.toString();
-        String[] words = text.split(" ");
-        for(String s: words) {
-            StringBuilder sb = new StringBuilder(s);
-            Word word = new Word(sb, length, replace);
-            ReturnSentence.append(word.lettersSplit()).append(" ");
-        }
-
-        return ReturnSentence;
-    }
-}
-
-class Word {
-
-    private final StringBuilder word;
-    private final int length;
-    private final String replace;
-
-    public Word(StringBuilder word, int length, String replace) {
-        this.word = word;
-        this.length = length;
-        this.replace = replace;
-    }
-
-    public StringBuilder lettersSplit() {
-        StringBuilder ReturnWord = new StringBuilder();
-        String wordstr = word.toString();
-        int len = wordstr.length();
-        String[] letters = wordstr.split("");
-        String[] ReplaceLetters = replace.split("");
-        char last = wordstr.charAt(word.length() - 1);
-        if(last == '!' || last == '?' || last == '.') {
-            if(wordstr.charAt(word.length() - 2) == '.') {
-                len = wordstr.length() - 3;
-            } else {
-                len = wordstr.length() - 1;
-            }
-        }
-        if(len == length) {
-            for(String chr: ReplaceLetters) {
-                StringBuilder ltr = new StringBuilder(chr);
-                Letter letter = new Letter(ltr);
-                ReturnWord.append(letter.getLetter());
-            }
-            if(wordstr.length() - len == 1) {
-                ReturnWord.append(wordstr.charAt(wordstr.length() - 1));
-            } else if(wordstr.length() - len == 3) {
-                ReturnWord.append("...");
-            }
-        } else {
-            for(String chr: letters) {
-                StringBuilder ltr = new StringBuilder(chr);
-                if(chr.equals("!") || chr.equals("?") || chr.equals(".") || chr.equals(",") || chr.equals(":") || chr.equals(";")) {
-                    Punctuation punctuation = new Punctuation(ltr);
-                    ReturnWord.append(punctuation.getPunctuation());
-                } else {
-                    Letter letter = new Letter(ltr);
-                    ReturnWord.append(letter.getLetter());
-                }
-            }
-        }
-        
-        return ReturnWord;
-    }
-}
-
-class Letter {
-
-    private final StringBuilder letter;
-
-    public Letter(StringBuilder letter) {
-        this.letter = letter;
-    }
-
-    public StringBuilder getLetter() {
-        return letter;
-    }
-
-}
-
-class Punctuation {
-
-    private final StringBuilder punctuation;
-
-    public Punctuation(StringBuilder punctuation) {
-        this.punctuation = punctuation;
-    }
-
-    public StringBuilder getPunctuation() {
-        return punctuation;
-    }
-} 

src/_12_Закревський_Данило_Сергійович/lab6/SixthLab.java

@@ -1,138 +0,0 @@
-import java.util.Scanner;
-import java.util.Arrays;
-import java.util.Comparator;
-
-public class SixthLab {
-    
-    public static int sumOfPassangers(Train[] trains) {
-        int sum = 0;
-        for (Train train: trains) {
-            sum += train.getCapacity();
-        }
-        return sum;
-    }
-
-    public static float sumOfLuggage(Train[] trains) {
-        float sum = 0.0f;
-        for (Train train: trains) {
-            sum += train.getLuggage();
-        }
-        return sum;
-    }
-    
-    public static void main(String[] args) {
-        Scanner scn = new Scanner(System.in);
-        Intercity intercity = new Intercity(2, "intercity", 57, 2.0f);
-        SV sv = new SV(3, "sv", 20, 1.3f);
-        Compartment compartment = new Compartment(2, "compartment", 40, 2.5f);
-        Plackart plackart = new Plackart(1, "plackart", 52, 1.8f);
-        Train[] trainCars = {intercity, sv, compartment, plackart};
-
-        System.out.println("List of train cars: ");
-        for (Train car: trainCars) {
-            System.out.println(car);
-        }
-
-        Arrays.sort(trainCars, new sortByComfort());
-        System.out.println("\nSorted list by comfort level: ");
-        for (Train car: trainCars) {
-            System.out.println(car);
-        }
-
-        System.out.printf("\n\nThe total number of passengers on the train - %d.\n", sumOfPassangers(trainCars));
-        System.out.printf("The total amount of train baggage - %.1f tons.", sumOfLuggage(trainCars));
-
-        System.out.println("\n\nFinding the train car by number of passengers");
-        System.out.print("Enter the lower number: ");
-        int lower = scn.nextInt();
-        System.out.print("Enter the extreme number: ");
-        int extreme = scn.nextInt();
-        boolean flag = false;
-        for (Train car: trainCars) {
-            int amount = car.getCapacity();
-            if(amount >= lower && amount <= extreme) {
-                System.out.println(car);
-                flag = true;
-            }
-        }
-        if (!flag) {
-            System.out.println("There is no such train car");
-        }
-        scn.close();
-    }
-}
-
-class Train {
-    private int comfortLevel;
-    private String type;
-    private int capacity;
-    private float luggage;
-
-    public Train(int comfortLevel, String type, int capacity, float luggage) {
-        this.comfortLevel = comfortLevel;
-        this.type = type;
-        this.capacity = capacity;
-        this.luggage = luggage;
-    }
-
-    public int getComfortLevel() {
-        return comfortLevel;
-    }
-
-    public String getType() {
-        return type;
-    }
-    
-    public int getCapacity() {
-        return capacity;
-    }
-
-    public float getLuggage() {
-        return luggage;
-    }
-
-    @Override
-    public String toString() {
-        return "Train : " + 
-                " Type: " + type +
-                ". Comfort level: " + comfortLevel +
-                ". Capacity: " + capacity + 
-                ". Luggage: " + luggage + " tons.";
-    }
-}
-
-
-class Intercity extends Train {
-
-    public Intercity(int comfortLevel, String type, int capacity, float luggage) {
-        super(comfortLevel, type, capacity, luggage);
-    }
-}
-
-class SV extends Train {
-
-    public SV(int comfortLevel, String type, int capacity, float luggage) {
-        super(comfortLevel, type, capacity, luggage);
-    }
-}
-
-class Compartment extends Train {
-
-    public Compartment(int comfortLevel, String type, int capacity, float luggage) {
-        super(comfortLevel, type, capacity, luggage);
-    }
-}
-
-class Plackart extends Train {
-
-    public Plackart(int comfortLevel, String type, int capacity, float luggage) {
-        super(comfortLevel, type, capacity, luggage);
-    }
-}
-
-class sortByComfort implements Comparator<Train> {
-    
-    public int compare(Train a, Train b){
-        return a.getComfortLevel() - b.getComfortLevel();
-    }
-}

src/encapsulationInheritancePolymorphism/inheritance/ElectricEngine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/inheritance/Engine.java

@@ -0,0 +1,5 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class Engine {
+    private int power;
+}

src/encapsulationInheritancePolymorphism/inheritance/FuelEngine.java

@@ -0,0 +1,5 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class FuelEngine extends Engine {
+    private String fuelType;
+}

src/encapsulationInheritancePolymorphism/inheritance/Main.java

@@ -0,0 +1,8 @@
+package encapsulationInheritancePolymorphism.inheritance;
+
+public class Main {
+    public static void main(String[] args) {
+        ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        FuelEngine fuelEngine = new FuelEngine();
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/ElectricEngine.java

@@ -0,0 +1,14 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+
+    @Override
+    public int getPower() {
+        return 20;
+    }
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/polymorphism/Engine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class Engine {
+    private int power;
+
+    public int getPower() {
+        return power;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/FuelEngine.java

@@ -0,0 +1,10 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+public class FuelEngine extends Engine {
+    private String fuelType;
+
+    @Override
+    public int getPower() {
+        return 50;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/Main.java

@@ -0,0 +1,38 @@
+package encapsulationInheritancePolymorphism.polymorphism;
+
+/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
+import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
+
+public class Main {
+    public static void main(String[] args) {
+        /*encapsulationInheritancePolymorphism.inheritance.*/ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        /*encapsulationInheritancePolymorphism.inheritance.*/FuelEngine fuelEngine = new FuelEngine();
+
+        Engine engine1 = fuelEngine;
+
+        Engine[] engines = {
+                electricEngine,
+                fuelEngine
+        };
+
+        for (Engine engine : engines) {
+            System.out.println(engine.getPower());
+        }
+
+        /*for (int i = 0; i < engines.length; i++) {
+            System.out.println(engines[i].getPower());
+        }*/
+
+//        +
+        int a = 1;
+        int b = 1;
+        int c = a + b;
+        System.out.println(c);
+
+
+        String sA = "1";
+        String sB = "1";
+        String sC = sA + sB;
+        System.out.println(sC);
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/ElectricEngine.java

@@ -0,0 +1,19 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class ElectricEngine extends Engine {
+    private String batteryType;
+    private int chargeLevel = 9;
+    private int criticalChargeLevel = 10;
+    private float coefficientCriticalPowerCut = 0.1f;
+
+    @Override
+    public int getPower() {
+        return chargeLevel > criticalChargeLevel
+                ? super.getPower()
+                : (int) (super.getPower() * coefficientCriticalPowerCut);
+    }
+
+    /*private class Engine {
+        private int power;
+    }*/
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Engine.java

@@ -0,0 +1,9 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class Engine {
+    private int power = 100;
+
+    public int getPower() {
+        return power;
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/FuelEngine.java

@@ -0,0 +1,10 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+public class FuelEngine extends Engine {
+    private String fuelType;
+
+    /*public int getPower() {
+        return 50;
+    }*/
+
+}

src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Main.java

@@ -0,0 +1,28 @@
+package encapsulationInheritancePolymorphism.polymorphism.enhanced;
+
+/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
+import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
+
+public class Main {
+    public static void main(String[] args) {
+        /*encapsulationInheritancePolymorphism.inheritance.*/
+        ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
+        /*encapsulationInheritancePolymorphism.inheritance.*/
+        FuelEngine fuelEngine = new FuelEngine();
+
+        Engine engine1 = fuelEngine;
+
+        Engine[] engines = {
+                electricEngine,
+                fuelEngine
+        };
+
+        for (Engine engine : engines) {
+            System.out.println(engine.getPower());
+        }
+
+        /*for (int i = 0; i < engines.length; i++) {
+            System.out.println(engines[i].getPower());
+        }*/
+    }
+}

src/encapsulationInheritancePolymorphism/polymorphism/overload/MyClassForOverloadExample.java

@@ -0,0 +1,17 @@
+package encapsulationInheritancePolymorphism.polymorphism.overload;
+
+public class MyClassForOverloadExample {
+    void myMethod(int a) {
+        System.out.println("Integer: " + a);
+    }
+
+    void myMethod(double a) {
+        System.out.println("Double: " + a);
+    }
+
+    public static void main(String[] args) {
+        MyClassForOverloadExample overload = new MyClassForOverloadExample();
+        overload.myMethod(1);
+        overload.myMethod(0.1);
+    }
+}