JTextField Alignment in Java Example

The JTextField is a text field of a single line. Class inherits from the javax.swing.text.JTextComponent. Its methods include:

• public JTextField (int NumCols): creates a JTextField NumCols occupying columns. If it contains the text exceeds this size will not be lost even if it can not display all simultaneously;
• public JTextField (String text, int NumCols): same as above but also present an initial text;
• public void setFont (Font font): sets the font with which the text is displayed;
• public String getText () returns its content in left;
• public String getSelectedText (): returns the selected text inside;
• public void copy (): Copies the selected text to the system clipboard;
• public void cut (): same as above but also removes the selected text;
• public void setEditable (boolean b) Enables or disables the ability to change the text content.

import java.awt.*; 
 import javax.swing.*; 
 import java.awt.event.*; 
 public class JavaExampleTextFieldAlignmentInJApplet extends JApplet 
 { 
     JTextField Txt = new JTextField("Welcome To Java"); 
     JButton BtnLft,BtnRght,BtnCntr; 
     public void init() 
       { 
         Container Cntnr = getContentPane(); 
         Txt.setColumns(30); 
         Cntnr.setLayout(new FlowLayout()); 
         Cntnr.add(new ButtonPanel()); 
         Cntnr.add(Txt); 
       } 
         class ButtonPanel extends JPanel implements ActionListener 
            { 
                public ButtonPanel() 
               { 
                   BtnLft = new JButton("Left");            
                   BtnRght = new JButton("Right");            
                   BtnCntr = new JButton("Center");            
                   BtnLft.addActionListener(this); 
                  BtnRght.addActionListener(this); 
                  BtnCntr.addActionListener(this); 
                  setLayout(new FlowLayout()); 
                  add(new JLabel("Alignment")); 
                  add(BtnLft); 
                  add(BtnRght); 
                  add(BtnCntr); 
                } 
                   public void actionPerformed(ActionEvent e1) 
                    { 
                         if(e1.getSource() == BtnLft) 
                       { 
                              Txt.setHorizontalAlignment(Txt.LEFT); 
                           } 
                          else if(e1.getSource() ==BtnRght) 
                           { 
                                        Txt.setHorizontalAlignment(Txt.RIGHT); 
                                    } 
                                         else if(e1.getSource() ==BtnCntr) 
                                     { 
                                                  Txt.setHorizontalAlignment(Txt.CENTER); 
                                             } 
                    } 
                } 
 } 
 /*<APPLET  CODE =JavaExampleTextFieldAlignmentInJApplet.class  WIDTH=360 HEIGHT=290></APPLET>*/