Nihal Sharma Nihal Sharma - 3 months ago 6
Java Question

How to retrieve Enum name using the id?

I have the

enum
as:

public enum EnumStatus {

PASSED(40L, "Has Passed"),
AVERAGE(60L, "Has Average Marks"),
GOOD(80L, "Has Good Marks");

private java.lang.String name;

private java.lang.Long id;

EnumStatus(Long id, java.lang.String name) {
this.name = name;
this.id = id;
}

public java.lang.String getName() {
return name;
}

public java.lang.Long getId() {
return id;
}
}


I have to get the Enum names(
PASSED
,
AVERAGE
,
GOOD
) using the ids only(40,60, 80). How do I do it?

Answer

Create a static method in your enum which searches in values (implicit method/member, don't know exactly which is it) and returns the corresponding value.

public static EnumStatus getById(Long id) {
    for(EnumStatus e : values()) {
        if(e.id.equals(id)) return e;
    }
    return null;
 }

Btw - your code seems to be wrong. The bracket after GOOD seems to not belong there.

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