|和||的作用和区别
|
- 逻辑或，| 两边的表达式都会进行运算
- 整数的或运算符
||
- 短路或，|| 左边的表达式结果为 true 时，|| 右边的表达式不参与计算
package constxiong.interview;
/**
* 测试 | ||
* @author ConstXiong
*/
public class TestOr {
public static void main(String[] args) {
int x = 10;
int y = 9;
if (x == 10 | ++y > 9) {
}
System.out.println("x = " + x + ", y = " + y);
int a = 10;
int b = 9;
if (a == 10 || ++b > 9) {//a == 9 为 false，所以 ++b 不会运算，b=9
}
System.out.println("a = " + a + ", b = " + b);
/*
00000000000000000000000000000001
|
00000000000000000000000000000010
=
00000000000000000000000000000011
*/
System.out.println(1 | 2);//打印3
}
}
打印
x = 10, y = 10
a = 10, b = 9
3
