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TEXTFIELD example in java



                  TEXTFIELD class example in java

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
/*
<applet code="TextDemo1" height=200 width=200>
</applet>
*/
public class TextDemo1 extends Applet implements ActionListener
{
            TextField tf;
            Button b1,b2;
            public void init()
            {
                        tf=new TextField(20);
                        add(tf);
                        tf.setEditable(false);  
                        b1=new Button("Show");
                        add(b1);
                        b1.addActionListener(this);
                        b2=new Button("Clear");
                        add(b2);
                        b2.addActionListener(this);
            }
            public void actionPerformed(ActionEvent ae)
            {
                        if(ae.getSource()==b1)
                                    tf.setText("Welcome To AWT");
                        else
                                    if(ae.getSource()==b2)
                                                tf.setText("");
            }
}

 setEditable():This method is used to set the TextField readonly. If we specify the false as its argument then the control is set readonly and if we specify the true as an argument then we can edit the text in it.The general form is ,                                    void setEditable(boolean b)

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