Java学习——Java运算符

位运算符

A = 0011 1100

B = 0000 1101

-----------------

A&b = 0000 1100

A | B = 0011 1101

A ^ B = 0011 0001
A << 2 = 1111 0000
A >>> 2 = 0000 1111

~A= 1100 0011

例子

package import_test;

public class Employee {public static void main(String args[]){int a = 60;

        int b = 13;

        System.out.println(a | b);

        System.out.println(a & b);

        System.out.println(a ^ b);

        System.out.println(~a);

        System.out.println(a << 2);

        System.out.println(a >>> 2);

    }

}

结果

61

12

49

-61

240

15

条件运算符

public class Employee {

    public static void main(String args[]){

        int a = 10;

        int b = 8;

        String rev = a > b ? "a > b" : "a<= b";

        System.out.println(rev);

    }

}

结果

a > b

instanceOf运算符

public class Employee {

    public static void main(String args[]){

        Employee eg = new Employee();

        String s = "String";

        System.out.println(s instanceof String);

        System.out.println(eg instanceof Employee);

        //boolean b = s instanceof Employee);

        //System.out.println(b);

    }

}

结果

true

true