运算符

# 运算符

``` java
public class demo05 {
    public static void main(String[] args) {
        long a=123456788l;
        int b =520 ;
        short c= 20;
        byte d=10;
        System.out.println(a+b+c+d);//long 有long转化为long
        System.out.println(b+c+d);//int  有int转化为int
        System.out.println(c+d);//int   低于int 转化为int
        //关系运算符返回值：false ture 布尔值
        int a1 = 10;
        int a2 =20;
        int a3 =22;
        //%取模符号,取余
        System.out.println(a3%a1);
        System.out.println(a1>a2);
        System.out.println(a1<a2);
        System.out.println(a1!=a2);
    }
}

```