day14 Java基础——三元运算符(条件运算符)及小结
1.条件运算符(偷懒)
package operator;public class Demo10 {public static void main(String[] args) {//x ? y : z//如果x==true,则结果为y,否则结果为zint score = 80;String type = score <60 ?"不及格":"及格";System.out.println(type);}
}
及格
2。扩展赋值运算符(偷懒)
package operator;public class Demo09 {public static void main(String[] args) {int a = 10;int b = 20;a+=b;//a = a+bSystem.out.println(a);}
}
30
3.字符串连接符 —— +
package operator;public class Demo09 {public static void main(String[] args) {int a = 10;int b = 20;System.out.println(a+b);System.out.println(""+a+b);}
}
30
1020
面试题:(“”+a +b)与(a+b+“”)有什么区别?都是1020?
package operator;public class Demo09 {public static void main(String[] args) {int a = 10;int b = 20;System.out.println(a+b);System.out.println(""+a+b);System.out.println(a+b+"");}
}
30
1020
30
细节问题
4.优先级()
5.总结
素材引用
【【狂神说Java】Java零基础学习视频通俗易懂】 https://www.bilibili.com/video/BV12J41137hu/?p=30&share_source=copy_web&vd_source=7f3536a42709e7d479031f459d8753ab