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);
    }
}