18

package shufei1;

public class Demo12 { public static void main(String[] args) { //关系运算符返回的结果：正确，错误 布尔值 //if

    int a =10;
    int b =20;
    int c =21;
    
    //取余，模运算
    System.out.println(c%a);//c/a   21/10 = 2...1

System.out.println(a>b); System.out.println(a<b); System.out.println(a==b); System.out.println(a!=b);

​ }

}