lab6

lab6/untitled/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

lab6/untitled/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

lab6/untitled/.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
+    </modules>
+  </component>
+</project>

lab6/untitled/src/Main.java

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+import java.util.Arrays;
+import java.util.Comparator;
+
+/**
+ * Клас, що описує базовий рухомий склад залізничного транспорту.
+ */
+class RollingStock {
+    private int number;
+
+    public RollingStock(int number) {
+        this.number = number;
+    }
+
+    public int getNumber() {
+        return number;
+    }
+}
+
+/**
+ * Клас, що описує пасажирський вагон.
+ */
+class PassengerCarriage extends RollingStock {
+    private int passengerCount;
+    private int comfortLevel;
+
+    public PassengerCarriage(int number, int passengerCount, int comfortLevel) {
+        super(number);
+        this.passengerCount = passengerCount;
+        this.comfortLevel = comfortLevel;
+    }
+
+    public int getPassengerCount() {
+        return passengerCount;
+    }
+
+    public int getComfortLevel() {
+        return comfortLevel;
+    }
+}
+
+/**
+ * Клас, що описує вагон для багажу.
+ */
+class BaggageCarriage extends RollingStock {
+    private int baggageCount;
+
+    public BaggageCarriage(int number, int baggageCount) {
+        super(number);
+        this.baggageCount = baggageCount;
+    }
+
+    public int getBaggageCount() {
+        return baggageCount;
+    }
+}
+
+/**
+ * Клас, що описує пасажирський потяг.
+ */
+class PassengerTrain {
+    private RollingStock[] rollingStock;
+
+    public PassengerTrain(RollingStock[] rollingStock) {
+        this.rollingStock = rollingStock;
+    }
+
+    public int getTotalPassengerCount() {
+        int totalPassengerCount = 0;
+        for (RollingStock stock : rollingStock) {
+            if (stock instanceof PassengerCarriage) {
+                PassengerCarriage carriage = (PassengerCarriage) stock;
+                totalPassengerCount += carriage.getPassengerCount();
+            }
+        }
+        return totalPassengerCount;
+    }
+
+    public int getTotalBaggageCount() {
+        int totalBaggageCount = 0;
+        for (RollingStock stock : rollingStock) {
+            if (stock instanceof BaggageCarriage) {
+                BaggageCarriage carriage = (BaggageCarriage) stock;
+                totalBaggageCount += carriage.getBaggageCount();
+            }
+        }
+        return totalBaggageCount;
+    }
+
+    public void sortByComfortLevel() {
+        Arrays.sort(rollingStock, new Comparator<RollingStock>() {
+            @Override
+            public int compare(RollingStock o1, RollingStock o2) {
+                if (o1 instanceof PassengerCarriage && o2 instanceof PassengerCarriage) {
+                    PassengerCarriage carriage1 = (PassengerCarriage) o1;
+                    PassengerCarriage carriage2 = (PassengerCarriage) o2;
+                    return carriage1.getComfortLevel() - carriage2.getComfortLevel();
+                }
+                return 0;
+            }
+        });
+    }
+
+    public RollingStock findCarriageByPassengerCountRange(int minPassengerCount, int maxPassengerCount) {
+        for (RollingStock stock : rollingStock) {
+            if (stock instanceof PassengerCarriage) {
+                PassengerCarriage carriage = (PassengerCarriage) stock;
+                if (carriage.getPassengerCount() >= minPassengerCount && carriage.getPassengerCount() <= maxPassengerCount) {
+                    return carriage;
+                }
+            }
+        }
+        return null;
+    }
+}
+
+/**
+ * Головний клас програми.
+ */
+public class Main {
+    public static void main(String[] args) {
+        // Створення вагонів потягу
+        RollingStock[] rollingStock = new RollingStock[5];
+        rollingStock[0] = new PassengerCarriage(1, 40, 3);
+        rollingStock[1] = new PassengerCarriage(2, 30, 2);
+        rollingStock[2] = new BaggageCarriage(3, 50);
+        rollingStock[3] = new PassengerCarriage(4, 20, 1);
+        rollingStock[4] = new PassengerCarriage(5, 35, 2);
+
+        // Створення пасажирського потягу
+        PassengerTrain train = new PassengerTrain(rollingStock);
+
+        // Розрахунок загальної кількості пасажирів та багажу в потязі
+        int totalPassengerCount = train.getTotalPassengerCount();
+        int totalBaggageCount = train.getTotalBaggageCount();
+        System.out.println("Total passenger count: " + totalPassengerCount);
+        System.out.println("Total baggage count: " + totalBaggageCount);
+
+        // Сортування вагонів за рівнем комфортності
+        train.sortByComfortLevel();
+        System.out.println("Sorted carriages by comfort level:");
+
+        for (RollingStock stock : rollingStock) {
+            if (stock instanceof PassengerCarriage) {
+                PassengerCarriage carriage = (PassengerCarriage) stock;
+                System.out.println("Carriage " + carriage.getNumber() + ", Comfort Level: " + carriage.getComfortLevel());
+            }
+        }
+
+        // Знаходження вагона з пасажирськими місцями в заданому діапазоні кількості пасажирів
+        int minPassengerCount = 25;
+        int maxPassengerCount = 40;
+        RollingStock foundCarriage = train.findCarriageByPassengerCountRange(minPassengerCount, maxPassengerCount);
+        if (foundCarriage != null) {
+            System.out.println("Found carriage with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + "): " + foundCarriage.getNumber());
+        } else {
+            System.out.println("No carriage found with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + ")");
+        }
+    }
+}

lab6/untitled/untitled.iml

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+<?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>