GridBagConstraints

[Aswq]

Hi all

i have a problem to set button position.How can i set the button position.When i am going to add two button then showing two space between both button.Plz help me..Here is code

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.*;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JRootPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class GridBagLayoutDemo {

	private static JLabel jlbName;
	private static JLabel jlbEmail;
	private static JLabel jlbProductKey;
	
	private static JTextField jtfName;
	private static JTextField jtfEmail;
	private static JTextField jtfProductKey;
	private static JTextField jtfState;
	private static JTextField jtfCity;
	
	private static Container pane = null;
	private static JButton jbtLogin;
	private static JButton jbtExit;

	public static void addComponentsToPane(JFrame frame) {

		pane = frame.getContentPane();
		ButtonGroup group = new ButtonGroup();
		
		
		GridBagConstraints gBC = new GridBagConstraints();
		gBC.fill = GridBagConstraints.HORIZONTAL;
		gBC.insets = new Insets(5, 5, 0, 5);

		jlbName = new JLabel("Name : ");
		gBC.weightx = 0.5;
		gBC.gridx = 0;
		gBC.gridy = 0;
		pane.add(jlbName, gBC);

		jtfName = new JTextField(20);
		gBC.weightx = 0.5;
		gBC.gridx = 1;
		gBC.gridy = 0;
		pane.add(jtfName, gBC);

		jlbEmail = new JLabel("EmailID : ");
		gBC.weightx = 0.5;
		gBC.gridx = 0;
		gBC.gridy = 1;
		pane.add(jlbEmail, gBC);

		jtfEmail = new JTextField(20);
		gBC.weightx = 0.5;
		gBC.gridx = 1;
		gBC.gridy = 1;
		gBC.fill = GridBagConstraints.NONE;
		pane.add(jtfEmail, gBC);

		gBC.fill = GridBagConstraints.HORIZONTAL;

		jlbProductKey = new JLabel("Product Key : ");
		gBC.gridx = 0;
		gBC.gridy = 2;
		pane.add(jlbProductKey, gBC);

		
		jtfProductKey = new JTextField(20);
		gBC.gridx = 1;
		gBC.gridy = 2;
		gBC.fill = GridBagConstraints.NONE;
		pane.add(jtfProductKey, gBC);

		jbtLogin = new JButton("Login");
		
		gBC.gridx = 1;
		gBC.gridy = 6;
		pane.add(jbtLogin, gBC);
		gBC.fill = GridBagConstraints.BOTH;
		jbtLogin.addActionListener(new ActionListener() {
		    public void actionPerformed(ActionEvent e) {
		    	
		    	login();
		    }
		});
		
		jbtExit = new JButton("Exit");
		gBC.gridx = 2;
		gBC.gridy = 6;
		pane.add(jbtExit, gBC);
	

	}

	
	private static void login() {
		System.out.println("Hello");
		
		
	    }

	private static void createAndShowGUI() {

		JFrame frame = new JFrame("GridBagLayout Demo");
		//	frame.setTitle("Hello");
			
		
			 frame.setUndecorated(false);
			   frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
			    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

			    

		frame.getContentPane().setLayout(new GridBagLayout());
		// Set up the content pane.
		
		frame.setSize(200,200);
		
		addComponentsToPane(frame);
		frame.setResizable(false);
		frame.pack();
		frame.setVisible(true);
	}

	


	public static void main(String[] args) {
		javax.swing.SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				createAndShowGUI();
			}
		});
	}
}

[hardwired]

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.*;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JRootPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class GBDemo {
    private static JLabel jlbName;
    private static JLabel jlbEmail;
    private static JLabel jlbProductKey;

    private static JTextField jtfName;
    private static JTextField jtfEmail;
    private static JTextField jtfProductKey;
    private static JTextField jtfState;
    private static JTextField jtfCity;

    private static Container pane = null;
    private static JButton jbtLogin;
    private static JButton jbtExit;

    public static void addComponentsToPane(JFrame frame) {
        pane = frame.getContentPane();
        ButtonGroup group = new ButtonGroup();

        GridBagConstraints gBC = new GridBagConstraints();
//        gBC.fill = GridBagConstraints.HORIZONTAL;
        gBC.insets = new Insets(5, 5, 0, 5);
        gBC.anchor = GridBagConstraints.WEST;

        jlbName = new JLabel("Name : ");
//        gBC.weightx = 0.5;
        gBC.gridx = 0;
        gBC.gridy = 0;
        gBC.gridwidth = 1;
        pane.add(jlbName, gBC);

        jtfName = new JTextField(20);
//        gBC.weightx = 0.5;
        gBC.gridx = 1;
        gBC.gridy = 0;
        gBC.gridwidth = 2;
        pane.add(jtfName, gBC);

        jlbEmail = new JLabel("EmailID : ");
//        gBC.weightx = 0.5;
        gBC.gridx = 0;
        gBC.gridy = 1;
        gBC.gridwidth = 1;
        pane.add(jlbEmail, gBC);

        jtfEmail = new JTextField(20);
//        gBC.weightx = 0.5;
        gBC.gridx = 1;
        gBC.gridy = 1;
        gBC.gridwidth = 2;
//        gBC.fill = GridBagConstraints.NONE;
        pane.add(jtfEmail, gBC);

//        gBC.fill = GridBagConstraints.HORIZONTAL;

        jlbProductKey = new JLabel("Product Key : ");
        gBC.gridx = 0;
        gBC.gridy = 2;
        gBC.gridwidth = 1;
        pane.add(jlbProductKey, gBC);

        jtfProductKey = new JTextField(20);
        gBC.gridx = 1;
        gBC.gridy = 2;
        gBC.gridwidth = 2;
//        gBC.fill = GridBagConstraints.NONE;
        pane.add(jtfProductKey, gBC);

        jbtLogin = new JButton("Login");

        gBC.anchor = GridBagConstraints.CENTER;
        gBC.insets.bottom = 2;
        gBC.weightx = 1.0;
        gBC.gridwidth = 1;

        gBC.gridx = 1;
//        gBC.gridy = 6; // you have only four rows
        gBC.gridy = 3;
        pane.add(jbtLogin, gBC);
//        gBC.fill = GridBagConstraints.BOTH;
        jbtLogin.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.out.println("Hello");
            }
        });
		
        jbtExit = new JButton("Exit");
        gBC.gridx = 2;
//        gBC.gridy = 6;
        gBC.gridy = 3;
        pane.add(jbtExit, gBC);
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("GridBagLayout Demo");
        frame.setUndecorated(false);
        frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().setLayout(new GridBagLayout());
        frame.setSize(200,200);
        addComponentsToPane(frame);
        frame.setResizable(false);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

[jurka]

I would use MigLayout which much easier to use and implementation is easier.