MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.GridLayout;

import javax.swing.InputVerifier;
import javax.swing.JComponent;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class MainClass {

    public static void main(String argv[]) {

        java.net.URL u = null;
        try {
            u = new java.net.URL("http://www.java2s.com/");
        } catch (java.net.MalformedURLException ignored) {
        }

        JFormattedTextField ftf1 = new JFormattedTextField(u);
        JFormattedTextField ftf2 = new JFormattedTextField(u);

        ftf2.setInputVerifier(new InputVerifier() {
            public boolean verify(JComponent input) {
                if (!(input instanceof JFormattedTextField))
                    return true;
                return ((JFormattedTextField) input).isEditValid();
            }
        });

        JPanel p = new JPanel(new GridLayout(0, 2, 3, 8));
        p.add(new JLabel("plain JFormattedTextField:"));
        p.add(ftf1);
        p.add(new JLabel("FTF with InputVerifier:"));
        p.add(ftf2);
        p.add(new JLabel("plain JTextField:"));
        p.add(new JTextField(u.toString()));

        JFrame f = new JFrame("MainClass");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new JLabel("Try to delete the colon in each field."), "North");
        f.getContentPane().add(p, "Center");
        f.pack();
        f.setVisible(true);
    }
}