Correc sequence of typing

Question

I would like to know is ther any programmaticly way createing JFrame I mean which is correct

JFrame frame = new JFrame("title");
            frame.pack();
            frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            frame.setVisible(true);
            frame.setSize(250,200);
      or

JFrame frame = new JFrame("title");
            frame.setSize(250,200);
            frame.pack();
            frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            frame.setVisible(true);

      or
JFrame frame = new JFrame("title");
            frame.setSize(250,200);
            frame.pack();
            frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
            frame.setVisible(true);

now this codes work ok with simple programm but what about if I use threads in bigger programmes

There is not such things call order here. Order is not important here — Ruchira Gayan Ranaweera, Oct 21 '14 at 07:12
`pack` and `setSize` both change the size of the window. The end result depends on which call is last. If you call `setVisible` before setting the size of the window the window will appear with the wrong size briefly. — Joni, Oct 21 '14 at 07:16

score 2 · Answer 1 · edited May 23 '17 at 12:05

There is no need of calling setSize() method if you are using proper layout manger and calling pack(). If you really need absolute size then override JComponent#getPreferredSize() method of JPanel.

Read more Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
Call setVisible() method in the end after adding all the component. Don't directly add components in top level container. Use other container such as JPanel then finally add it in JFrame.
The order of calling setDefaultCloseOperation() method doesn't matter.

score 0 · Answer 2 · answered Oct 21 '14 at 07:17

0

In this case call order is not important, but as a general rule, i would place pack at the end as call of pack is some cases should be last called ( after adding all components to your GUI )

answered Oct 21 '14 at 07:17

gogic1

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Correc sequence of typing

2 Answers2