import java.awt.*;
import java.awt.event.*;
public class example3 extends Frame implements ActionListener
{
TextField t;
Button b;
example3()
{
t = new TextField();
t.setBounds(20,20,170,20);
add(t);
b = new Button("click me");
b.setBounds(100,120,80,30);
add(b);
b.addActionListener(this);
setLayout(null);
setSize(300,300);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
t.setText("welcome");
}
public static void main(String args[])
{
example3 obj = new example3();
}
}
Initially I added a text field to the the frame object and I created a button also and added this to frame object but I am not getting correct output.
When I executed this program the text field does not appear. Why?
I got output like this: enter image description here
I would like to suggest only one change in line number 11, that increase the x-coordinate and y-coordinate value of setBounds as per your requirement because your code is working but that field is not at a visible location.
as example:- your code:- t.setBounds(20,20,170,20); after changing:- t.setBounds(50,50,170,20);
import java.awt.*;
import java.awt.event.*;
public class example3 extends Frame implements ActionListener
{
TextField t;
Button b;
example3()
{
t = new TextField();
// t.setBounds(20,20,170,20);
//Changes has been done,here.
t.setBounds(50,50,170,20);
add(t);
b = new Button("click me");
b.setBounds(100,120,80,30);
add(b);
b.addActionListener(this);
setLayout(null);
setSize(300,300);
setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
t.setText("welcome");
}
public static void main(String args[])
{
example3 obj = new example3();
}
}
I hope, it will be helpful.
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