Upload files to "OOP/Java/Lab/Week7"

OOP/Java/Lab/Week7/AutoBoxUnBoxDemo.java

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+public class AutoBoxUnBoxDemo {
+    public static void main(String[] args) {
+        // Autoboxing examples
+        Integer intObj = 10;
+        Double doubleObj = 3.14;
+        Character charObj = 'A';
+        Boolean boolObj = true;
+
+        System.out.println("Autoboxing examples:");
+        System.out.println("Integer: " + intObj);
+        System.out.println("Double: " + doubleObj);
+        System.out.println("Character: " + charObj);
+        System.out.println("Boolean: " + boolObj);
+
+        // Unboxing examples
+        int intValue = intObj;
+        double doubleValue = doubleObj;
+        char charValue = charObj;
+        boolean boolValue = boolObj;
+
+        System.out.println("\nUnboxing examples:");
+        System.out.println("int: " + intValue);
+        System.out.println("double: " + doubleValue);
+        System.out.println("char: " + charValue);
+        System.out.println("boolean: " + boolValue);
+
+        // Demonstrating autoboxing in method calls
+        printObject(50);  // autoboxing int to Integer
+
+        // Demonstrating unboxing in expressions
+        Integer sum = intObj + 5;  // unboxing for addition, then autoboxing result
+        System.out.println("\nSum after unboxing and autoboxing: " + sum);
+    }
+
+    public static void printObject(Object obj) {
+        System.out.println("\nObject passed: " + obj);
+    }
+}
+

OOP/Java/Lab/Week7/ObjectCountDemo.java

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+class ObjectCount {
+    private static int count = 0;
+
+    public ObjectCount() {
+        count++;
+    }
+
+    public static int getCount() {
+        return count;
+    }
+}
+
+public class ObjectCountDemo {
+    public static void main(String[] args) {
+        System.out.println("Initial count: " + ObjectCount.getCount());
+
+        ObjectCount obj1 = new ObjectCount();
+        System.out.println("Count after creating obj1: " + ObjectCount.getCount());
+
+        ObjectCount obj2 = new ObjectCount();
+        System.out.println("Count after creating obj2: " + ObjectCount.getCount());
+
+        ObjectCount obj3 = new ObjectCount();
+        System.out.println("Count after creating obj3: " + ObjectCount.getCount());
+
+        System.out.println("Final count: " + ObjectCount.getCount());
+    }
+}