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

public class SelectLayout extends JFrame implements ItemListener{
public static void main (String[] args) {
SelectLayout sl=new SelectLayout();
}
    
    JMenuBar menuBar;
    JMenu lmenu,cmenu;
    JRadioButtonMenuItem lrbmenuItem,crbmenuItem;
    JPanel menuPanel,bPanel;
    JButton button;
    public SelectLayout() {
    	super("Select Layout in swing");
    	menuPanel=new JPanel();
    	menuBar=new JMenuBar();
    	lmenu=new JMenu("layout");
    	ButtonGroup gp=new ButtonGroup();
    	lrbmenuItem =new JRadioButtonMenuItem("BorderLayout");
    	lrbmenuItem.setMnemonic(KeyEvent.VK_B);
    	lrbmenuItem.addItemListener(this);
    	gp.add(lrbmenuItem);
    	lmenu.add(lrbmenuItem);
    	lrbmenuItem =new JRadioButtonMenuItem("FlowLayout");
    	lrbmenuItem.setMnemonic(KeyEvent.VK_F);
    	lrbmenuItem.addItemListener(this);
    	lrbmenuItem.setSelected(true);
    	gp.add(lrbmenuItem);
    	lmenu.add(lrbmenuItem);
    	lrbmenuItem =new JRadioButtonMenuItem("GridLayout");
    	lrbmenuItem.setMnemonic(KeyEvent.VK_G);
    	lrbmenuItem.addItemListener(this);
    	gp.add(lrbmenuItem);
    	lmenu.add(lrbmenuItem);
    	lrbmenuItem =new JRadioButtonMenuItem("CardLayout");
    	lrbmenuItem.setMnemonic(KeyEvent.VK_C);
    	lrbmenuItem.addItemListener(this);
    	gp.add(lrbmenuItem);
    	lmenu.add(lrbmenuItem);
    	menuBar.add(lmenu);
    	
    	//second menu
    	cmenu=new JMenu("CardLayout");
    	crbmenuItem =new JRadioButtonMenuItem("First");
    	crbmenuItem.setMnemonic(KeyEvent.VK_F);
    	crbmenuItem.setSelected(true);
    	crbmenuItem.addItemListener(this);
    	gp.add(crbmenuItem);
    	cmenu.add(crbmenuItem);
    	crbmenuItem =new JRadioButtonMenuItem("last");
    	crbmenuItem.setMnemonic(KeyEvent.VK_L);
    	crbmenuItem.addItemListener(this);
    	gp.add(crbmenuItem);
    	cmenu.add(crbmenuItem);
    	crbmenuItem =new JRadioButtonMenuItem("next");
    	crbmenuItem.setMnemonic(KeyEvent.VK_N);
    	crbmenuItem.addItemListener(this);
    	gp.add(crbmenuItem);
    	cmenu.add(crbmenuItem);
    	crbmenuItem =new JRadioButtonMenuItem("previous");
    	crbmenuItem.setMnemonic(KeyEvent.VK_P);
    	crbmenuItem.addItemListener(this);
    	gp.add(crbmenuItem);
    	cmenu.add(crbmenuItem);
    	cmenu.setEnabled(false);
    	menuBar.add(cmenu);
    	menuPanel.add(menuBar);
    	add(menuPanel,BorderLayout.NORTH);
    	
    	
    	bPanel=new JPanel();
    	for (int i = 0; i<4; i++) {
    	 	button=new JButton("button");
    	 	bPanel.add(button);
        }	 
        	bPanel.setLayout(new GridLayout());
        add(bPanel,BorderLayout.CENTER);
     
    	//setLayout(new FlowLayout());
    	setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    	setSize(400,400);
        setVisible(true);
     }    	
       


     	public void itemStateChanged(ItemEvent e)
    	{
    		if(e.paramString().equals("BorderLayout"))
    		{   
                 bPanel.setLayout(new BorderLayout());}
  	        if(e.paramString().equals("FlowLayout"))
    			button.setLayout(new FlowLayout());
    		if(e.paramString().equals("GridLayout"))
    			bPanel.setLayout(new GridLayout(2,2));
    		if(e.paramString().equals("CardLayout"))
    		{
    		    cmenu.setEnabled(true);
    			setLayout(new CardLayout());}
    	}
}

Edited 6 Years Ago by __avd: Added [code] tags. For easy readability, always wrap programming code within posts in [code] (code blocks).

Seems like a reasonable comment to me.

I would also add: ask a question or describe the problem. Don't just dump the code and say "fix this".

This article has been dead for over six months. Start a new discussion instead.