CODEWITHSUNDEEP
javaandroidclassreflectionstatic
BArtWell
BArtWell

Reputation: 4044

Is it possible to get static property by class name?

For example, I need to get static property from one of my own classes Class1 or Class2 (property name is same for both classes) depend user action. I have only class name in String variable. How to get this property?

Certainly I can to do this:

InfoClass ic;
if(className.equals("Class1")) {
    ic=Class1.prop;
} else if(className.equals("Class2")) {
    ic=Class2.prop;
}

But that is not so fine solution, I think... Is there another way to implement this?

Upvotes: 1

Views: 4116

Answers (2)

Nick H
Nick H

Reputation: 11535

You can do this, but as mentioned in the comments it's even less neat than your current solution.

Class clazz = Class.forName(qualifiedClassName);
Field field = clazz.getDeclaredField("prop");
ic = (InfoClass)field.get(null);

It's quite likely that there's a different way to do whatever it is you're doing in your app, which doesn't require reflection or a long list of conditionals; but I don't know enough about your problem to know what that is.

Upvotes: 3

Eng.Fouad
Eng.Fouad

Reputation: 117655

Use reflection:

Class.forName("mypackage.MyClass").getDeclaredField("field").get(null);

Upvotes: 2

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