[java] Enum 예제

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ex1) Enum 클래스

Enum Class 생성

public enum TestEnum {
        MOVE_IN ("code1", 1 , "Y"),
        MOVE_OUT("code2", 2 , "N")
        ;
        
        private String code;
        private int num;
        private String useYn;
​
        TestEnum(String code, int num, String useYn) {
                this.code = code;
                this.num = num;
                this.useYn = useYn;
        }
    
        public String getCode() {
                return code;
        }
        public int getNum() {
                return num;
        }
        public String getUseYn() {
                return useYn;
        }
}

Enum 사용

public class Test {
        public static void main(String...args) {
            
                String code = TestEnum.MOVE_OUT.getCode();
                int num = TestEnum.MOVE_IN.getNum();
                String useYn = TestEnum.MOVE_IN.getUseYn();
        
                System.out.println(code);   //code2
                System.out.println(num);    //1
                System.out.println(useYn);  //Y
        }
}

ex2) Enum 메서드

Enum 메서드 생성

​
public class TestConst {    
public enum Gender {

        MAN1 ( "홍길동", 010, 18 ),
        MAN2 ( "슈퍼맨", 011, 22 ),
        MAN3 ( "이이이", 444, 100)
        ;
        private String name;
        private int phone;
        private int age;
        
Gender(String name, int phone, int age) {
                this.name = name;
                this.phone = phone;
                this.age = age;
        }
​
        public String getName() {
                return name;
        }
        public int getPhone() {
                return phone;
        }
        public int getAge() {
                return age;
        }
}
    
    public enum RfcName {
            ORDER("RFC_ORDER"),
            LIST("RFC_LIST"),
            MODIFY("RFC_MODIFY"),
            REMOVE("RFC_REMOVE")
            ;
            private String interfaceName;
            RfcName(String interfaceName) {
                    this.interfaceName = interfaceName;
            }
            public String getInterfaceName() {
                    return interfaceName;
            }
}
}
​

Enum 사용

public class Test {
        public static void main(String...args) {
        
String name = TestConst.Gender.MAN1.getName();
        int phone = TestConst.Gender.MAN3.getPhone();
        int age = TestConst.Gender.MAN2.getAge();
        System.out.println(name);   // 홍길동
        System.out.println(phone);  // 444
        System.out.println(age);    // 22
        
        String ifName = TestConst.RfcName.ORDER.getInterfaceName();
        String ifName2 = TestConst.RfcName.REMOVE.getInterfaceName();
        System.out.println(ifName); // RFC_ORDER
        System.out.println(ifName2);// RFC_REMOVE

}
}
​

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