Swing 101 question
Dear all,
I am playing with Swing. I plan to create a button and a textfield. I can create both of them on a Panel. The question is how to control the locations of both of them. I spend an hour and find out how to switch the locations between textarea and button, but the way is very stupid. It is because I change the order of the creation of textarea and button. Could you please tell me how should I control the location of those components? I have attached my code in the following! thanks
package im;
import javax.swing.AbstractButton;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.JTextField;
publicclass Swingextends JPanel
implements ActionListener{
protected JButton SendButton;
public Swing(){
final JTextField tf =new JTextField("press <enter>", 30);
//tf.setHorizontalAlignment(JTextField.LEFT);
//tf.setBounds(100,300,35,30);
//tf.setSize(400,400);
add(tf);
SendButton =new JButton("Send");
//SendButton.setVerticalTextPosition(AbstractButton.CENTER);
//SendButton.setHorizontalTextPosition(AbstractButton.LEADING); //aka LEFT, for left-to-right locales
//SendButton.setMnemonic(KeyEvent.VK_D);
// SendButton.setActionCommand("disable");
//SendButton.setSize(100,100);
//SendButton.setHorizontalAlignment(JButton.RIGHT);
SendButton.addActionListener(this);
add(SendButton);
}
publicvoid actionPerformed(ActionEvent e){
}
privatestaticvoid createAndShowGUI(){
//Create and set up the window.
JFrame frame =new JFrame("IM");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
Swing newContentPane =new Swing();
newContentPane.setOpaque(true);//content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
frame.setSize(550,400);
}
publicstaticvoid main(String[] args){
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable(){
publicvoid run(){
createAndShowGUI();
}
});
}
}
