package operator;
import com.sun.media.jfxmediaimpl.HostUtils;
public class Demo01 {
public static void main(String[] args) {
int a = 10;
int b = 10;
a+=b;//a = a+b
a-=b;//a = a-b
System.out.println(a);
//字符连接符 + ,有String类型的时候会将+改成字符连接号
System.out.println(a+b);
System.out.println(""+a+b);//字符在前会将后面的a+b变成字符链接
System.out.println(a+b+"");//a+b在前会先进行加减运算
}
}
package operator;
public class Demo2 {
public static void main(String[] args) {
//条件运算符
//x ? y : z
//如果x==true,则结果为y,否则结果为z
int scoer = 50;
String type = scoer <60 ? "不及格":"及格";
System.out.println(type);
}
}