public class Test
{
public static void main(String args[])
{
int x=-1,y=0;
System.out.println(x);
System.out.println(y);
System.out.println(y=x++ +x);//output: -1
System.out.println(y);
System.out.println(x);
System.out.println(y=x+ x++);//output: 0
}
}