Java 两个整数内容交换

public class Change{
public static void main(String[] args){
int x=100,y=123,z;
System.out.println(“初始的x=”+x+”\t”+”初始的y=”+y);
z=x;
x=y;
y=z;
System.out.println(“交换后的x=”+x+”\t”+”交换后的y=”+y);
}
}