ObjectCall

package callbyvalue;

public class ObjectCall {

	public static void main(String[] args) {
		TempNum z = new TempNum(10);
		System.out.println("Value of x before the call: " + z);
		add(z);
		System.out.println("Value of x after the call: " + z);
	}
	
	public static void add(TempNum z) {
		z.x = 15;
	}
}

class TempNum {
	
	public int x;
	
	public TempNum(int x) {
		this.x = x;
	}

	@Override
	public String toString() {
		return "TempNum [x=" + x + "]";
	}
}