Java creating objects as arguments to functions

Question

Since, I get used to code in javascript, I want to create objects with properties.

Here is my code:

jPanel2.add( new JPanel(){ this.add(new JButton("Add")); });

Do you have any suggestions ?

jPanel2.add( new JPanel("Text"));

Ved
– Ved

2012-05-22 13:27:40 +00:00
Commented May 22, 2012 at 13:27 — Ved
– Ved, Commented May 22, 2012 at 13:27
i want to add a JPanel, which has a button, inside jPanel2

Yunus Eren Güzel
– Yunus Eren Güzel

2012-05-22 13:29:25 +00:00
Commented May 22, 2012 at 13:29 — Yunus Eren Güzel
– Yunus Eren Güzel, Commented May 22, 2012 at 13:29

dacwe · Accepted Answer · 2012-05-22 13:29:34Z

6

You can always use this syntax:

container.add(new JPanel() {{ this.add(new JButton("Add")); }});

Full example:

public static void main(String[] args) throws Exception {

    JFrame frame = new JFrame("Test");

    frame.add(new JPanel() {{ this.add(new JButton("Add")); }});

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
}

answered May 22, 2012 at 13:29

dacwe

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3 Comments

Matt Ball Over a year ago

Just a warning: stackoverflow.com/questions/924285/…

billc.cn Over a year ago

Field initializer in anonymous class body?? Genius!!

dacwe Over a year ago

@DavidB I wouldn't say that it's unreadable, sometimes it's really neat! :)

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