Thread: add JTextField with a click of button

public class HandlerClass1 implements ActionListener
		{
		 	public JTextField tf1;
 
			public void actionPerformed (ActionEvent event)
			{				
 
				tf1 = new JTextField("");
				tf1.setBounds(100, 80,50, 20);
				add(tf1);
                        }
                  }

What I want the program to do is if a user click the button it will add a new JTextField. My codes return no error or anything. My Program started with no textfield.

I just added a space between the quotation marks and it works

You can't just add components to an already visible GUI. You have to revalidate the container in question- check out the API for useful functions.