About "Button Size"

HI

Look this fragment

When i chaing the size in setSize() the Size it is the same always

hfw to chaig the size

Thenkyou

The layout managers take over the sizing of your Components. Moving to the Swing forum, where we usually discuss this sort of thing.

Hi Michail,

Instead of using setSize() use

Here we use the setPreferredSize method and not setSize because the if a container has a layout then it will use the components getPreferredSize() but if a container has an EmptyLayout then we can use setSize method to set the components dimensions.

Just go through the below link. You will get some idea regarding this.

http://osflash.org/projects/aswing/tutorials/messagebox_jframe_flowlayout_jlabel_mcicon

Regards,
Antany

Thankyou

and i have one more Question

haw to set a JLabel like a links something like CardLayout when i pres a JLabel Label to set me one the next Page like a button

I wana make samthig lije a Book in Java

Hi Michail,

You can do this adding mouse listeners to your label.

The below link will be helpfull to understand various mouse events.
http://java.sun.com/docs/books/tutorial/uiswing/events/mouselistener.html

Regards,
Antany

Hi agen

i have this code

import javax.swing.*;
import java.awt.event.*;

class Frame implements ActionListener
{
	
	JMenuBar up;
	JMenu Firma;
	JMenu Pansion;
	JMenuItem NEW;
	JMenuItem OLD;
	JButton b;
	public boolean off = true;
	
	
	Frame()
	{
		  up = new JMenuBar();
		  
		  Firma = new JMenu(" FIRMA ");
          up.add(Firma);
		  
		  NEW = new JMenuItem(" new Firm ");
		  NEW.addActionListener(this);
	      Firma.add(NEW);
		  
		  OLD = new JMenuItem(" old Firm ");
		  OLD.addActionListener(this);
		  Firma.add(OLD);
		  
		  Pansion = new JMenu(" Pansion ");
		  up.add(Pansion);
		  
		  
		  
		  JPanel panel = new JPanel();
		  JButton b = new JButton("PUSCH");
		  panel.add(b);
		  b.setVisible(off);

JFrame frame = new JFrame("FRAME");
		  frame.setJMenuBar(up);
		  frame.add(panel);
		  frame.setSize(400,400);
		  frame.setVisible(true);
		  
	}
	
	public void actionPerformed(ActionEvent e)
	{
		if(e.getSource()==NEW)
		{
			System.out.println("NEW FIRMA is create ");
			off=false;
			System.out.println("New result " + off);
			
		}
	   
	    if(e.getSource()==OLD)
	    {
	    	System.out.print("OLD FIRMA is bean load");
	    }
	
	}
	
	
	
	
	
	public static void main(String args[])
	{
		new Frame();
	}
}

I have a frame with manu and one Button
i setVisible with one Bulean varible "off"

i wont when i push Firma - NEW to disapear the Button and i change the "off" to false

but the result did not apear

what to do

Perhaps what you want to do is to swap JPanels rather than show and disappear components like buttons. Please try out this program and let me know if this is similar to what you are looking for:

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.border.TitledBorder;

@SuppressWarnings("serial")
public class Panel2 extends JPanel {
  private static final String FIRST_PANEL = "First Panel";
  private static final String SECOND_PANEL = "Second Panel";
  private CardLayout cardlayout = new CardLayout();
  private JPanel firstPanel = new JPanel();
  private JPanel secondPanel = new JPanel();

public Panel2(JFrame frame) {
    setUpPanels();
    frame.setJMenuBar(createMenuBar());

setLayout(cardlayout);
    add(firstPanel, FIRST_PANEL);
    add(secondPanel, SECOND_PANEL);
  }

private void setUpPanels() {
    JButton pushBtn = new JButton("Push");
    TitledBorder firstTitleB = BorderFactory.createTitledBorder("First Panel");
    firstTitleB.setTitleJustification(TitledBorder.RIGHT);
    firstPanel.setBorder(firstTitleB);
    firstPanel.setPreferredSize(new Dimension(400, 350));
    firstPanel.add(pushBtn);

TitledBorder secondTitleB = BorderFactory
        .createTitledBorder("Second Panel");
    secondTitleB.setTitleJustification(TitledBorder.RIGHT);
    secondPanel.setBorder(secondTitleB);
  }

private JMenuBar createMenuBar() {
    ActionListener panelSwitchListener = new PanelSwitchListener();
    JMenuItem showFirst = new JMenuItem(FIRST_PANEL);
    JMenuItem showSecond = new JMenuItem(SECOND_PANEL);
    showFirst.addActionListener(panelSwitchListener);
    showSecond.addActionListener(panelSwitchListener);
    
    JMenu swapPanels = new JMenu("Swap Panels");
    swapPanels.add(showFirst);
    swapPanels.add(showSecond);

JMenuBar menubar = new JMenuBar();
    menubar.add(swapPanels);
    return menubar;
  }

private class PanelSwitchListener implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      String actionCommand = e.getActionCommand();
      cardlayout.show(Panel2.this, actionCommand);
    }
  }

private static void createAndShowUI() {
    JFrame frame = new JFrame("Frame2");
    frame.getContentPane().add(new Panel2(frame));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }

public static void main(String[] args) {
    java.awt.EventQueue.invokeLater(new Runnable() {
      public void run() {
        createAndShowUI();
      }
    });
  }
}

If so, then please read the CardLayout tutorial which you can find here: How To Use CardLayout

No i dont wont to swap the panels i want to the "BOOLEAN off" to shaing in the constructor

i change it hire

and i wont to be change hire

i declarate it like

and i wont to change but i dont know haw to say to the constructor i alredy did this