02

//测试算术运算符：+ - + - * / % ++ -- +（连接符）

class TestAri
{
public static void main(String[] args)
{
//除：/
int i = 12;
int j = i/5;
double d = i/5;
double d1 = i/5.0;

System.out.println(j);//2
System.out.println(d);//2.0
System.out.println(d1);//2.4

//取模：%取余数,结果的符号取决于被模数
int i1 = i % 5;
int i2 = 12 % (-5);
int i3 = -12 % (-5);
System.out.println(i1);//2
System.out.println(i2);//2
System.out.println(i3);//-2

//前++：先自增1，后做运算
//后++：先做运算，后自增1
int myInt1=10;
int myInt2 = myInt1++;
System.out.println(myInt1);
System.out.println(myInt2);

int myInt3 = 10;
int myInt4 = ++myInt3;
System.out.println(myInt3);
System.out.println(myInt4);

}
}

转载于:https://www.cnblogs.com/kaikai97/p/11175693.html