Java 枚举插入值

Question

I have an enum created as below

public enum CustomData {

    SHOW_VAL("","");

    private final String valCode;
    private final String valD;  

    CustomData(String valCode, String valD){
        this.valCode = valCode;
        this.valD = valD;
    }

    public String getvalCode() {
        return this.valCode;
    }

    public String getvalD() {
        return this.valD;
    }   
}

I am throwing exception using the enum Custom Data. Right now, I can create multiple static types like SHOW_VAL("TEXT","DESC") , but I want to put the text in it at runtime when any error occurs.

In the above, code how can I insert the values via the constructor defined above in other class?

Answer 1

Enums are a compile time constant, you can't create new ones in the runtime using regular language features. As per Enum Type docs:

You should use enum types any time you need to represent a fixed set of constants. That includes natural enum types such as the planets in our solar system and data sets where you know all possible values at compile time—for example, the choices on a menu, command line flags, and so on.

Use a regular class for runtime values.