三元运算符
package operator;
public class Demo07 {
public static void main(String[] args){
int a = 10;
int b = 20;
a+=b; //a= a+b
a-=b; //a= a-b
System.out.println(a);
//字符串连接符 + ,String
System.out.println(""+a+b); //1020
System.out.println(a+b+""); //30
}
}
package operator;
//三元运算符
public class Demo08 {
public static void main(String[] args) {
//x ? y : z
//如果x==true,则结果为y,否则结果为z
int score = 80;
String type = score <60 ?"不及格":"及格"; //必须掌握
// if
System.out.println(type);
}
}
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