CODEWITHSUNDEEP
javaswing
Batusai
Batusai

Reputation: 149

Java gui Jbutton

I have a program but I can't combine the textfield and the button in the same frame like in top textfield and below that the button:

Here is my source code: 

import java.awt.*;
import javax.swing.*;
public class FirstGui extends JFrame
{
     JTextField texts;
 JButton button;   

    public FirstGui()
    {
        texts = new JTextField(15);
        add(texts);
        button = new JButton("Ok");
        add(button);

    }
    public static void main(String args [])
    {
        FirstGui gui = new FirstGui();
        gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        gui.setSize(200,125);
        gui.setVisible(true);

    }
}

Upvotes: 0

Views: 275

Answers (2)

Paul Samsotha
Paul Samsotha

Reputation: 209092

The default layout is BorderLayout for JFrame. When you add components to a BorderLayout, if you don't specify their BorderLayout position, like BorderLayout.SOUTH, the component will automatically be add to BorderLayout.CENTER. Bthe thing is though, each position can only have one component. So when you add texts it gets added to the CENTER. Then when you add button, it gets added to the CENTER but texts gets kicked out. So to fix, you can do

add(texts, BorderLayout.NORTH);
add(button, BorderLayout.CENTER);

See Laying out Components Within a Container to learn more about layout managers.

UPDATE

import java.awt.*;
import javax.swing.*;

public class FirstGui extends JFrame {

    JTextField texts;
    JButton button;

    public FirstGui() {
        texts = new JTextField(15);
        add(texts, BorderLayout.CENTER);
        button = new JButton("Ok");
        add(button, BorderLayout.SOUTH);

    }

    public static void main(String args[]) {
        FirstGui gui = new FirstGui();
        gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        gui.pack();
        gui.setVisible(true);

    }
}

Upvotes: 2

Martin Dinov
Martin Dinov

Reputation: 8825

Add a layout like FlowLayout:

public FirstGui()
{
    setLayout(new FlowLayout());
    texts = new JTextField(15);
    add(texts);
    button = new JButton("Ok");
    add(button);

}

at the very beginning of your constructor, before anything else.

Upvotes: 2

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