#Java Day07 三元运算符及小结
package operator;
public class Demo02 {
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);
System.out.println(""+a+b); //拼接
System.out.println(a+b+""); //运算
}
}
三元运算符
package operator;
//三元运算符
public class Demo03 {
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 = 50;
String type = score<60 ? "不及格" : "及格" ; //必须掌握
// if
System.out.println(type);
}
}