JFrame find odd/even

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 //JFrame class
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class MyJFrame extends JFrame implements ActionListener
{
    Container con;
    JLabel lbl1;
    JTextField txt1;
    JButton btn1;

    MyJFrame(String title)
    {
        super(title);
        con = new Container();
        con.setLayout(new FlowLayout());

        lbl1 = new JLabel("Number");
        con.add(lbl1);

        txt1 = new JTextField(10);
        con.add(txt1);

        btn1 = new JButton("Odd/Even");
        btn1.addActionListener(this);
        con.add(btn1);

        add(con);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    public void actionPerformed(ActionEvent ae)
    {
        int no = Integer.parseInt(txt1.getText());

        if(no%2 == 0)
            JOptionPane.showMessageDialog(this, "Even Number");
        else
            JOptionPane.showMessageDialog(this, "Odd Number");
    }
    public static void main(String[] args) {
            MyJFrame obj = new MyJFrame("Odd Even");
            obj.setSize(200, 200);
            obj.setVisible(true);
        }    
}

OUTPUT:



 

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