1. Start
2. Create two object references: obj1, obj2.
3. Allocate memory for two new Object instances and assign the references to obj1 and obj2.
4. Set obj1 to null, releasing the reference to the first Object instance.
5. Set obj2 to null, releasing the reference to the second Object instance.
6. Request the garbage collector to run.
7. Display "Garbage collection requested."
8. End

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public class GarbageCollectionDemo {
    public static void main(String[] args) {
        Object obj1, obj2;
        obj1 = new Object();
        obj2 = new Object();
        obj1 = null;ance.
        obj2 = null;

        System.gc();
        System.out.println("Garbage collection requested.");
    }
}