How do I create a new object in java that has the properties of another one without declaring it?

Question

For example, I have a JButton with a set icon, name and label; How do I make a new JButton that I can add, say, to a panel?

JButton b1=new JButton();
b1.set[whatever needs to be set];
JPanel p=new JPanel();
p.add(new JButton()[that has the properties of b1]);

You want to create an object without instantiating it? Doesn't make sense, please be more clear about what you are trying to do. Do you want to clone the button? — Vince, May 12 '16 at 19:12
Clone, see http://howtodoinjava.com/core-java/cloning/a-guide-to-object-cloning-in-java/ — jasonlam604, May 12 '16 at 19:15
You can create a class that extends `JButton`, and create a copy constructor. — Clark Kent, May 12 '16 at 19:33
I meant declaring not instantiating, but I think it was quite clear what I meant — Fat Uncle D, May 12 '16 at 21:12

score 1 · Answer 1 · edited May 23 '17 at 11:52

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Using exactly the same properties? Then you can try b1.clone(). In your case it will be p.add(b1.clone());. clone() can create a shallow copy of your object, see clone(). And check this answer for copying.

edited May 23 '17 at 11:52

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answered May 12 '16 at 20:21

Ran0990BK

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How do I create a new object in java that has the properties of another one without declaring it?

1 Answers1