Thread: TextComponent class in java

Hi. I am lasted year BCA student. I am learning JAVA programming language. I do not understand how to use TextComponent class. So please provide me any idea about how to use TextComponent class in java language. Thanks in advance.

Code:

I suggest you to refer following example of ‘TextComponent ', which will give you something idea about the use of this class:

Code:

import java.awt.BorderLayout;
import java.text.MessageFormat;

java.awt.TextComponent
public class TextDemo {
  	public static void main(String[] arjjgs) throws Exception {
   	 final JTextArea textArea1 = new JTextArea();
    	textArea.setText("text");
    	JScrollPane jScrollPane1 = new JScrollPane(textArea);
    	final MessageFormat header1 = new MessageFormat("My Header");
    	final MessageFormat footer1 = new MessageFormat("My Footer");
    	JPanel contentPane1 = new JPanel();
    	contentPane.setLayout(new BorderLayout());
    	contentPane.add(jScrollPane, BorderLayout.CENTER);
    	JFrame frame1 = new JFrame();
    	frame1.setTitle("Text-component Printing Demo");
    	frame1.setSize(300, 200);
    	frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	frame1.setContentPane(contentPane);
    	frame1.setVisible(true);
    	textArea.print(header1, footer1, true, null, null, true);
  	}
}

**)
I have tried the given code but it didn’t solve my problem. Please try to provide some other solution.

Following are methods of TextComponent class:

• setCaretPosition(int pos1)

• setText(String strg)

• setSelectionStart(int selectionStrt1)

• setSelectionEnd(int selectionEnd1)

• setEditable(boolean bln)

The code that I have mentioned will definitely help you. Just try to understand following code. It is very simple code.

Code:

import java.awt.*;
import java.awt.event.*;
public class TextEntryBox extends java.applet.Applet 
implements ActionListener { 
    TextArea area;
    TextField field;
    
    public void init() {
        setLayout( new BorderLayout() );
        add( "Center", area = new TextArea() );
        area.setFont( new Font("TimesRoman",Font.BOLD,18) );
        area.setText("Howdy!n");
        add( "South", field = new TextField() );
        field.addActionListener ( this );
    }
    public void actionPerformed(ActionEvent e) {
        area.append( field.getText() + 'n' );
        field.setText("");
    }
}