How to remove focus from textfield and set it on button?

Question

It is the simple counter gui program in these program by pressing right arrow counter is incremented by 1 but the problem is whenever i run the program then pressing the right arrow the counter is not increment by 1 but by pressing the right arrow the cursor in textfield shifts from left to right why this happens?

import javax.swing.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class CounterDemo implements KeyListener
{
    JTextField jtf;
    JButton jb,jb1;
    int i=0;
    public CounterDemo ()
    {
        JFrame jf = new JFrame();
        jf.setBounds(100,100,400,400);
        jf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        jf.setLayout(null);


        jtf = new JTextField("0");
        jtf.setBounds(60,10,50,20);
        jf.add(jtf);

        JButton jb = new JButton("next");
        JButton jb1 = new JButton("prev");
        jb.setBounds(10,35,75,20);
        jb1.setBounds(90,35,75,20);

        jf.add(jb);
        jf.add(jb1);

        jb.addKeyListener(this);
        jb1.addKeyListener(this);
        jf.setVisible(true);
    }
    public static void main(String[] args)
    {
        new CounterDemo();
    }

    public void keyPressed(KeyEvent ke)
    {
        if(ke.getKeyCode() == KeyEvent.VK_RIGHT)
        {
            i++;
            jtf.setText(" "+i);
        }
        else if (ke.getKeyCode() == KeyEvent.VK_LEFT)
        {
            i--;
            jtf.setText(" "+i);
        }
    }

    public void keyTyped(KeyEvent ke)
    {

    }

    public void keyReleased(KeyEvent ke)
    {

    }
}

Answer 1

Add jtf.setFocusable(false) so that the text field is not in focus initially.

Edit: As Abra said, this would make the text field never be in focus. An alternative solution is to do something like jb.grabFocus() , for the button to get focus instead of the text field.