JAVA中enum使用方法

注意查看结果，STATUSCODE尤为重要

package com.enumtest;

public enum RESULTMAP {

SUCCESS(200,"返回正确结果"),INPUT_PARAM_ERROR(301,"入参有误");

private int code;

private String desc;

public int getCode() {
return code;
}

public void setCode(int code) {
this.code = code;
}

public String getDesc() {
return desc;
}

public void setDesc(String desc) {
this.desc = desc;
}

private RESULTMAP(int code,String desc){
this.code = code;
this.desc = desc;
}
}

package com.enumtest;

public enum SEAZON {
SPRING("春天"),SUMMAR("夏天");

private String seazon;

public String getSeazon() {
return seazon;
}

public void setSeazon(String seazon) {
this.seazon = seazon;
}

private SEAZON(String seazon){
this.seazon = seazon;
}
}

package com.enumtest;

public enum WEEKDAY {
MONDAY(new Integer(1)),TUESDAY(new Integer(1));

private Integer day;

public Integer getDay() {
return day;
}

public void setDay(Integer day) {
this.day = day;
}

private WEEKDAY(Integer day) {
this.day = day;
}
}

package com.enumtest;

public enum STATUSCODE {
SUCCESS("200","返回正确结果"),INPUT_PARAM_ERROR("301","入参有误");

private String code;

private String desc;

public String getCode() {
return code;
}

public void setCode(String code) {
this.code = code;
}

public String getDesc() {
return desc;
}

public void setDesc(String desc) {
this.desc = desc;
}

private STATUSCODE(String code,String desc){
this.code = code;
this.desc = desc;
}
}

package com.enumtest;

public class MainTest {

public static void main(String[] args) {
WEEKDAY monday = WEEKDAY.MONDAY;
System.out.println(monday.getDay());
System.out.println(monday.getDay().getClass());
System.out.println("=====================================");
SEAZON seazon = SEAZON.SPRING;
System.out.println(seazon);
System.out.println(seazon.getSeazon().getClass());
System.out.println("=====================================");
RESULTMAP res = RESULTMAP.SUCCESS;
System.out.println(res);
System.out.println(res.getCode());
System.out.println(res.getDesc());
System.out.println(res.getClass());
System.out.println("=====================================");
STATUSCODE resSS = STATUSCODE.SUCCESS;
System.out.println(resSS.getCode());
System.out.println(resSS.getDesc());
System.out.println(resSS.getClass());

}

}

运行结果：

1
class java.lang.Integer
=====================================
SPRING
class java.lang.String
=====================================
SUCCESS
200
返回正确结果
class com.enumtest.RESULTMAP
=====================================
200
返回正确结果
class com.enumtest.STATUSCODE