How can i create Enum in Java?

Question

I already created Enum. But i cannot create new Enum. I wanna create and compare 2 Enums actually. The X value is coming from backend. It's a dynamic value. I wanna make this;

EmployeeType type = new EmployeeType("X")

if (type == EmployeeType.X_PERSONALS) {
    Log.i("SAMPLE_TAG", "Yesss!")
}

public enum EmployeeType {
    X_PERSONALS("X"),
    Y_PERSONALS("Y"),
    Z_PERSONALS("Z");

    private final String text;

    EmployeeType(final String text) {
        this.text = text;
    }

    public String getText() {
        return text;
    }
}

"But i cannot create new Enum" this is literally the point of enums: you can't instantiate them. You can refer to the existing elements, like `EmployeeType type = EmployeeType.X_PERSONALS;`. — Andy Turner, Jan 12 '22 at 10:33
Then what you are looking for is probably: [How to get the enum type by its attribute?](https://stackoverflow.com/questions/7888560/how-to-get-the-enum-type-by-its-attribute/30212636) — OH GOD SPIDERS, Jan 12 '22 at 10:36
But you should include that information in your question, not in a comment. That information is vital to understand what you actually have problems with — QBrute, Jan 12 '22 at 10:37

score 4 · Answer 1 · answered Jan 12 '22 at 10:34

4

But i cannot create new Enum

This is literally the point of enums: you can't instantiate them.

You can refer to the existing elements e.g.

EmployeeType type = EmployeeType.X_PERSONALS;

answered Jan 12 '22 at 10:34

Andy Turner

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score 3 · Accepted Answer · answered Jan 12 '22 at 10:41

3

So what you are actually trying to achieve is to find the enum constant that has the same text. You can to that like this:

public enum EmployeeType {
    X_PERSONALS("X"),
    ///...and so on

    public static EmployeeType getByText(String x) {
        for(EmployeeType t:values()) {
            if(t.text.equals(x)){
                return t;
            }
        }
        return null;
    }
}

and then use the code like this:

EmployeeType type = EmployeeType.getByText("X");
if (type == EmployeeType.X_PERSONALS) {
    //and so on

answered Jan 12 '22 at 10:41

f1sh

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You can also build a `Map` if you are going to do this lookup a lot. – Andy Turner Jan 12 '22 at 10:45
I know that OP's enum is probably only an example, but with 3 constants I would probably advise against using a Map. – f1sh Jan 12 '22 at 10:49

How can i create Enum in Java?

2 Answers2