比较运算符

/*
运算符之三：比较运算符
==  !=  >  <  >= <=  instanceof
结论：
1.比较运算符的结果是boolean类型
2.区分 ==  和  = 
*/
class CompareTest {
    public static void main(String[] args) {
        int i = 10;
        int j = 20;
        System.out.println(i == j);//false
        System.out.println(i = j);//20
        boolean b1 = true;
        boolean b2 = false;
        System.out.println(b2 == b1);//false
        System.out.println(b2 = b1);//true
    }
}