public void changeMethod_1(int a, int b){
System.out.println("changeMethod_1交换之前\ta:"+a+"\tb:"+b);
a = a + b - (b = a);
System.out.println("changeMethod_1交换之后\ta:"+a+"\tb:"+b);
}
public void changeMethod_2(int a, int b){
System.out.println("changeMethod_2交换之前\ta:"+a+"\tb:"+b);
b = a + (a = b)*0;
System.out.println("changeMethod_2交换之后\ta:"+a+"\tb:"+b);
}
public void changeMethod_3(int a, int b){
System.out.println("changeMethod_3交换之前\ta:"+a+"\tb:"+b);
a = a + b;
b = a - b;
a = a - b;
System.out.println("changeMethod_3交换之后\ta:"+a+"\tb:"+b);
}
public void changeMethod_4(int a, int b){
System.out.println("changeMethod_4交换之前\ta:"+a+"\tb:"+b);
a = a * b;
b = a / b;
a = a / b;
System.out.println("changeMethod_4交换之后\ta:"+a+"\tb:"+b);
}
public void changeMethod_5(int a, int b){
System.out.println("changeMethod_5交换之前\ta:"+a+"\tb:"+b);
a = a^b;
b = a^b;
a = a^b;
System.out.println("changeMethod_5交换之后\ta:"+a+"\tb:"+b);
}