Making sure Text fits within JButton...

[Shyam Prasad Murarka]

Dear Readers,
I have been trying to make the label of JButton to be displayed. But all that shows up is "...". This is because the display area of JButton is small. So I tried reducing the Font size of JButton to a minimum. What happens is that the size of "..." gets reduced!!! Text is still not displayed! And its not a long string, its just a single number.

//The following lines of code belong to a class called [B]Field[/B]
//which extends [B]JButton[/B]
setFont(new Font("Arial", Font.PLAIN, 2));
setPreferredSize(new Dimension(25,25));
setText("1");

[Jeff Albertson]

Post a minimal example program demonstrating your problem.

Don't explciitly set the preferred size of a button.
Are you pack()ing your JFrame? Then components should be receiving adequate
dimensions unless a layout manager is dropping the ball.

[Shyam Prasad Murarka]

Dear Readers,
Whatever code was relevant to the problem I have posted it. The rest of the code is many lines long. What I am trying is to make a minesweeper game. I have finsihed making it. And its working. But I have to improve the GUI. For that I need to maintain the height and width of each box. Is there any other way other than using setPreferrdSize()??

[Michael Dunn]

works OK like this

import javax.swing.*;
import java.awt.*;
class Testing extends JFrame
{
  public Testing()
  {
    setLocation(400,300);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new GridLayout(9,9));
    JButton[] btns = new JButton[81];
    for(int x = 0; x < btns.length; x++)
    {
      btns[x] = new JButton(""+(x+1));
      btns[x].setMargin(new Insets(0,0,0,0));//<----------------------
      btns[x].setFont(new Font("Arial", Font.PLAIN, 10));
      btns[x].setPreferredSize(new Dimension(25,25));
      panel.add(btns[x]);
    }
    getContentPane().add(panel);
    pack();
  }
  public static void main(String[] args){new Testing().setVisible(true);}
}

[Shyam Prasad Murarka]

Dear Readers,
Michael, thanks for your sample. It made me realize something. Your code worked perfectly.
But I wanted the button size to be (15,15) so I changed it. But the double digits number did not show up this time.
Then I commented the line that sets the Margin. This time the single digits also did not show up!!
So i put back the setMargin() line and the single digits showed up. That's what I wanted. Because in Minesweeper the numbers will never be more than 8.
So its working, BUT I still don't understand why its working??

What I estimated is that maybe JButton by default sets a margin greater than 0 resultantly eating away the precious display area!!
And by setting it to 0 in the above code, the text gets more space to display iself. So atleast the single digits are being displayed.