Java Text Field

Introduction of Java Text Field

TextField in java used for input purpose.We can use following method for this purpose.

1. Constructors
   
   TextField()
   TextField(String matter);
   TextField(int width);
   TextField(String matter, int width);
   
   

2. Text method
   void setText(String matter);
   String getText();
   
   

3. Foreground color method
   
   void setForeground(Color);
   Color getForeground();
   
   

4. Background color method
   
   void setBackground(Color);
   Color getBackground();
   
   

5. Location method
   
   void setLocation(int x, int y);
   void setLocation(Point);
   Point getLocation();
   
   

6. Labe Size method
   
   void setSize(int width, int height);
   void setSize(Dimension);
   Dimension getSize();
   

7. Visibility method 
   
   void setVisible(boolean)
   boolean isVisible()
   

8. Enable and disable method 
   
   void setEnabled(boolean)
   boolean isEnabled()
   

Programm

Save MyFrameListener.java

import java.awt.event.*;
class MyFrameListener extends WindowAdapter
{
	public void windowClosing(WindowEvent we)
	{
		System.exit(0);
	}
}


Save MyFrame.java 
 
import java.awt.*;
class MyFrame extends Frame
{
	TextField t1, t2, t3, t4;
	
	MyFrame()
	{
		super("Sample Java Frame");
		addWindowListener(new MyWindowAdapter());
		setSize(600,400);
		addControls();
		setVisible(true);
	}
	
	private void addControls()
	{
		setLayout(new FlowLayout());
		
		t1 = new TextField();
		t2 = new TextField("Sample Text Field");
		t3 = new TextField(15);
		t4 = new TextField("Another Text Field",10);
		
		
		t3.setBackground(Color.YELLOW);
		t3.setForeground(Color.RED);
		
		t2.setVisible(true);
		t3.setEnabled(true);
		t4.setEditable(false);
		
		
		
		add(t1);
		add(t2);
		add(t3);
		add(t4);	
	}
}


Save GUI1.java

public class GUI1
{
	public static void main(String args[])
	{
		MyFrame mf = new MyFrame();
	}
}