java day02 交换数据

class SwapBySubstract_XOR
{
	public static void main(String []args)
	{
		int a=3,b=8;
		a=a+b;
		b=a-b;
		a=a-b;
		System.out.println("a="+a+" b="+b);
		a=a^b;
		b=a^b;
		a=a^b;
		System.out.println("a="+a+" b="+b);
	}
}