java基础09逻辑运算符、位运算符

package operator;

//逻辑运算符
public class Demo05 {
public static void main(String[] args) {
// 与(and) 或(or) 非(取反)
boolean a = true;
boolean b = false;

System.out.println("a && b:"+(a&&b));//逻辑与运算:两个变量都为真,结果才为true
System.out.println("a || b:"+(a||b));//逻辑与运算:两个变量有一个为真,则结果才为true
System.out.println("!(a && b):"+!(a&&b));//如果是真,则变成假,如果是假,则变成真

//短路运算
int c = 5;
boolean d = (c<4)&&(c++<4);
System.out.println(d);
System.out.println(c);
}
}
package operator;

public class Demo06 {
public static void main(String[] args) {
/*
A = 0011 1100
B = 0000 1101
------------------------
A&B = 0000 1100与
A|B = 0011 1101或
A^B = 0011 0001异或
~B = 1111 0010取反

2*8 = 16 2*2*2*2
<< *2
>> /2

0000 0000 0
0000 0001 1
0000 0010 2
0000 0011 3
0000 0100 4
0000 1000 8
0001 0000 16

*/
System.out.println(2<<3);
}
}


原文地址:https://www.cnblogs.com/yuanzhihui/p/14858375.html