2-2-2 判断语句-if-else新例子？

来源：互联网发布：dev c 如何创建c语言编辑：程序博客网时间：2024/06/06 11:45

例子一

老师举例：

if( height < MAX ){growth = 10;}else{growth = MAX - weight;}

自己补充成：

public class Hello {public static void main(String[] args) {// TODO Auto-generated method stubfinal int MAX = 66;Scanner in = new Scanner(System.in);int height = in.nextInt();int weight = in.nextInt();int growth;if( height < MAX ){growth = 10;}else{growth = MAX - weight;}System.out.println(growth);}}

无报错，无运行

final int MAX = 66;

设max=66

例子二输小时，求工资+加班费

public class Hello {public static void main(String[] args) {// TODO Auto-generated method stubfinal double RATE = 8.25;final int STANDARD = 40;double pay = 0.0;Scanner in = new Scanner(System.in);System.out.print("Enter the number of hours worked:");int hours = in.nextInt();System.out.println();if( hours < STANDARD ){pay = STANDARD * RATE + (hours-STANDARD) * (RATE* 1.5);}else{pay = hours + RATE;}System.out.println("Gross earnings:" + pay);}}

例子三

<span style="font-size:14px;">public class Hello {public static void main(String[] args) {// TODO Auto-generated method stubfinal double PASS = 8.25;Scanner in = new Scanner(System.in);System.out.print("请输入成绩：");int score = scan.nextInt();System.out.println("你输入的成绩是"+score);if( score < PASS ){System.out.println("很遗憾，唔及格");}else{System.out.println("恭喜，及格");}System.out.println("再见");}}</span>

不知道是老师出错了还是我还没学到，而且程序也在这一行显示出错：

int score = scan.nextInt();

按上面的例子应该是

<pre name="code" class="java" style="font-size: 14px;">int score = in.nextInt();

例子延伸

如果后面改成，而输入<60：

else{System.out.println("恭喜，及格");System.out.println("再见");}

那么再见不会出现。

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