.gitignore

@@ -0,0 +1,2 @@
+Lab 1/Lab_1.class
+Lab 2/Lab_2.class

Java/Lab 1/Lab_1.java

@@ -1,64 +0,0 @@
-import java.util.Scanner;
-
-public class Lab_1 {
-    public static void main(String[] args) {
-        int n, m, a, b;
-        float s = 0;
-
-        Scanner input = new Scanner(System.in);
-        
-        do {
-            try {
-                System.out.print("Enter n: ");
-                n = input.nextInt();
-                break;
-            } catch (Exception e) {
-                System.out.println("N must be an integer.");
-                input.nextLine();
-            }
-        } while (true);
-
-        do {
-            try {
-                System.out.print("Enter m: ");
-                m = input.nextInt();
-                break;
-            } catch (Exception e) {
-                System.out.println("M must be an integer.");
-                input.nextLine();
-            }
-        } while (true);
-
-        do {
-            try {
-                System.out.print("Enter a: ");
-                a = input.nextInt();
-                break;
-            } catch (Exception e) {
-                System.out.println("A must be an integer.");
-                input.nextLine();
-            }
-        } while (true);
-
-        do {
-            try {
-                System.out.print("Enter b: ");
-                b = input.nextInt();
-                break;
-            } catch (Exception e) {
-                System.out.println("B must be an integer.");
-                input.nextLine();
-            }
-        } while (true);
-
-        input.close();
-
-        for (int i = a; i <= n; i++) {
-            for (int j = b; j <= m; j++) {
-                s += j;
-            }
-        }
-
-        System.out.println("S = " + s);
-    }
-}

Lab 1/Lab_1.java

@@ -0,0 +1,41 @@
+import java.util.Scanner;
+
+public class Lab_1 {
+    public static void main(String[] args) {
+        int n, m, a, b;
+        float s = 0;
+
+        Scanner input = new Scanner(System.in);
+        
+        System.out.print("Enter n: ");
+        n = input.nextInt();
+
+        System.out.print("Enter m: ");
+        m = input.nextInt();
+
+        do {
+            System.out.print("Enter a (can't be above n): ");
+            a = input.nextInt();
+        } while (a > n);
+
+        do {
+            System.out.print("Enter b (can't be above m): ");
+            b = input.nextInt();
+        } while (b > m);
+
+        input.close();
+
+        if ((a <= 0) && (n >= 0)) {
+            System.out.println("Error, division by zero, shutting down!");
+            System.exit(1);
+        }
+
+        for (int i = a; i < n; i++) {
+            for (int j = b; j < m; j++) {
+                s += i * j / i;
+            }
+        }
+
+        System.out.println("S = " + s);
+    }
+}

Rust/Lab 1/Lab_1.rs

@@ -1,3 +0,0 @@
-fn main() {
-
-}