简介:在将enum和switch case结合使用的过程中,遇到了这个错误:“An enum switch case label must be the unqualified name of an enumeration constant”。 enum和switch case结合使用 在将enum和switch case结合使用的过程中,遇到了这个错误:“An enum switch case label must be the unqualified name of an enume...
Enums can also be used in switch case in Java. Example package pkgenum; public class Enum { public enum Friends { raj, ram, aj, nick, mike, mj, jj} public static void main(String[] args) { for(Friends f : Friends.values()) System.out.println(f); } } Output ...
Single,Manager,Tree,TreeManager } [java] view plaincopypackagecom.hap.code;importjava.io.Serializable;importcom.hap.code.utils.TemplateType;publicclassCodeFactory {publicvoidgenerateCode(TemplateType templateType,Class<Serializable>... cls) {switch(templateType) {caseSingle:break;default:break; } }...
// 使用包装类型Integervalue=5;switch(value) {case3: System.out.println("3");break;case5: System.out.println("5");break;default: System.out.println("default"); }// 使用枚举类型Status status = Status.PROCESSING;switch(status) {caseOPEN: System.out.println("open");break;casePROCESSING: S...
一个简单的switch case语句 public class SwitchCaseExample1 { public static void main(String args[]){ int num=2; switch(num+2) { case 1: System.out.println("Case1: Value is: "+num); case 2: System.out.println("Case2: Value is: "+num); ...
switch( )的控制表达式(即括号中的条件)可以是任何枚举类型;当switch控制表达式使用枚举类型时,后面case表达式中的值可以直接使用枚举值的名字,而无需添加枚举类作为限定(不需要 [ 也不能 ] 这样写:SeasonEnum.SPRING)。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 public enum SeasonEnum{ SPRING,SUMMER...
Cursor): branchs = "" for child in enum.get_children(): branchs += f'case {child.enum_value}: return "{child.spelling}";\n' code = f""" std::string_view {enum.spelling}_to_string({enum.spelling} value) {{ switch(value) {{ {branchs}}}""" return code def traverse(node: ...
// Define an enum type:enumSignal{GREEN,YELLOW,RED,}publicclassTrafficLight{Signal color=Signal.RED;publicvoidchange(){switch(color){// Note that you don't have to say Signal.RED// in the case statement:caseRED:color=Signal.GREEN;break;caseGREEN:color=Signal.YELLOW;break;caseYELLOW:color=...
JDK1.6之前的switch语句只支持int,char,enum类型,使用枚举,能让我们的代码可读性更强。 enum Signal { GREEN, YELLOW, RED } public class TrafficLight { Signal color = Signal.RED; public void change() { switch (color) { case RED: color = Signal.GREEN; ...
Switch on Enum Using Traditional Switch and Case in Java In the example, we create an enum inside theSwitchEnumclass and name itDays. It holds seven constants that are the days of a week. We use the switch and case method to show a different message for each day. ...