java位运算

package C1;

public class Test {
	public static void main(String[] args) {
		int num=86;
		//位运算判断奇偶数
		System.out.println(num+"num是:"+(((num&1)==0)?"偶数":"奇数"));
		//获取二进制位是0或1(两种解决方法)
		System.out.println("=====获取二进制位是0或1======");
		System.out.println(num+"的第5位二进制数是:"+((((num&(1<<4))>>4)==0)?"0":"1"));
		System.out.println(num+"的第5位二进制数是:"+((((num>>4)&1)==0)?"0":"1"));
		//变量表换
		System.out.println("=========变量表换========");
		int num1=10;
		int num2=20;
		num1=num1^num2;
		num2=num1^num2;
		num1=num1^num2;
		System.out.println("num1=="+num1+", num2=="+num2);
		//不用判断语句,求整数的绝对值
		System.out.println("======求整数的绝对值======");
		int num3=-50;											//>>>不带符号移位		
		System.out.println(num3+"num3的绝对值是"+((num3^(num3>>31))+(num3>>>31)));
	}
}