1. Java枚举示例( }1 v i8 c: [ U& v8 R
package com.mkyong.java
public enum Language {
JAVA,
PYTHON,
NODE,
NET,
RUBY
}
3 B/ [* O9 J w2.与==比较
) c% M( a8 z: V/ P0 |2 Z' X( | 将枚举值与==运算符进行比较的示例。package com.mkyong.java
public class Test {
public static void main(String[] args) {
// Covert string to enum
//Language enumObj = Language.valueOf("java".toUpperCase());
Language enumObj = Language.JAVA;
if (enumObj == Language.JAVA) {
System.out.println("Welcome Java");
} else if (enumObj == Language.NET) {
System.out.println("Welcome .Net");
} else if (enumObj == Language.NODE) {
System.out.println("Welcome Node JS");
} else if (enumObj == Language.PYTHON) {
System.out.println("Welcome Python");
} else if (enumObj == Language.RUBY) {
System.out.println("Welcome Ruby");
} else {
System.out.println("Hello World");
}
}
}
1 x* E9 ^1 @ V- g, w 输出量:Welcome Java0 M+ u$ v6 p; O. e
3.与开关比较
% z: T9 r3 W* y# \& d0 j: G" W2 w 另外,您可以将枚举值与switch语句进行比较。
f- F5 ?/ Z, Z" \5 c% q$ lpackage com.mkyong.java
public class Test {
public static void main(String[] args) {
Language enumObj = Language.PYTHON;
switch (enumObj) {
case JAVA:
System.out.println("Welcome Java");
break;
case NET:
System.out.println("Welcome .Net");
break;
case NODE:
System.out.println("Welcome Node JS");
break;
case PYTHON:
System.out.println("Welcome Python");
break;
case RUBY:
System.out.println("Welcome Ruby");
break;
default:
System.out.println("Hello World");
break;
}
}
}
K" ?$ @1 E9 T; s1 A; A" w 输出量:Welcome Python7 F8 A/ s8 v% ~
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