Java 12 引入了新的 switch 表达式,而 #IntelliJ IDEA# 也已支持这个新特性。别忘了配置 Language Level 搭配 Alt+Enter(Windows/Linux)或 ⌥⏎(macOS)来体验新语句的魅力! 动图 û收藏 转发 4 ñ14 评论 o p 同时转发到我的微博 按热度 按时间 正在加载,请稍候......
如果你要用switch来写程序.我写了一段你参考下 package Test;import java.util.Scanner;public class Test{ public static void main(String[] args){ int level=0;//分数等级 System.out.print("请输入考试分数:");Scanner input=new Scanner(System.in);int score=input.nextInt();//得到输入...
InUseByOtherUser InvokeDelegate InvokeMethod InvokeTable IPAddressControl IrregularSelection ISCatalog IsEmptyDynamicValue 斜體 項目 ItemAddedAssociation 項目ID ItemListView ItemUpdatedAssociation JARFile JavaSource Join JoinNode JournalMessage JSAPI JSBlankApplication JSCoffeeScript JSConsole JSCordovaMultiDe...
a leading learning community for data scientists and developers in the UK. He is also chairman and cofounder of Cambridge Coding Academy, a community of young coders and students. Urma is coauthor of the best-selling programming bookJava 8 in Action(Manning Publications, 2015). He holds a Ph...
The break and default keywords are optional, and will be described later in this chapterThe example below uses the weekday number to calculate the weekday name:Example int day = 4; switch (day) { case 1: System.out.println("Monday"); break; case 2: System.out.println("Tuesday"); bre...
Java中字符串switch的实现细节 Java 7中的字符串的switch是如何实现的。验证它其实非常简单,你只需用字符串写一段switch的代码,然后反编译一下,看看编译器是如何翻译它们的就可以了。 publicclassStringInSwitchCase{publicstaticvoidmain(String[] args){Stringmode=args[0];switch(mode) {case"ACTIVE":...
To learn more, visit Java break Statement. default Case in Java switch-case The switch statement also includes an optional default case. It is executed when the expression doesn't match any of the cases. For example, class Main { public static void main(String[] args) { int expression =...
Java documentation for android.telephony.DataFailCause.DDS_SWITCH_IN_PROGRESS. Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Applies to 产品版本(已过时...
Java switch 使用枚举类 开发过程中为了代码的可阅读性和可维护性,很多类型字段往往会习惯使用枚举去定义,可是在一些判断里面想用switch去代替if else 就会出现以下问题 public enum SexType {...return work; } public void setWork(String work) { this.work = work; } } 如果直接使用会因为...case后跟的是...
希望你在阅读完本文后,积极地代码中实验这些功能,为Java团队提供反馈,并为Java的发展做出贡献。 Switch表达式 Java 14中的switch表达式将会永久存在。如果你需要回忆一下什么是switch表达式,可以参考以前这两篇文章。 《New switch Expressions in Java 12》:https://blogs.oracle.com/javamagazine/new-switch-expressio...