Java 枚舉使用三板斧

1 定義

public enum CountryEnums {

ONE(1,"韓"),TWO(2,"魏"),THREE(3,"楚"),FOUR(4,"燕"),FIVE(5,"趙"),SIX(6,"齊");

private Integer retCode;

private String retMsg;

// 枚舉的構造方法是 private 的

private CountryEnums(Integer retCode,String retMsg){

this.retCode = retCode;

this.retMsg = retMsg;

}

public Integer getRetCode() {

return retCode;

}

public void setRetCode(Integer retCode) {

this.retCode = retCode;

}

public String getRetMsg() {

return retMsg;

}

public void setRetMsg(String retMsg) {

this.retMsg = retMsg;

}

2 遍歷

// 枚舉的遍歷

public static CountryEnums forEachCountryEnums(Integer index){

for(CountryEnums element : values()){

if(element.getRetCode() == index){

return element;

}

}

return null;

}

}

3 使用

for(int i = 1; i <= 6; i++){

System.out.println(CountryEnums.forEachCountryEnums(i).getRetMsg());

}

原文：https://www.cnblogs.com/karong007/p/11230029.html