MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class MainClass {

    public static void main(String[] a) {
        Display d = new Display();
        Shell s = new Shell(d);

        final Text text1 = new Text(s, SWT.WRAP | SWT.BORDER);
        text1.setBounds(100, 50, 100, 20);
        text1.setTextLimit(5);
        text1.setEchoChar('*');
        final Text text2 = new Text(s, SWT.SINGLE | SWT.BORDER);
        text2.setBounds(100, 75, 100, 20);
        text2.setTextLimit(30);

        FocusListener focusListener = new FocusListener() {
            public void focusGained(FocusEvent e) {
            }

            public void focusLost(FocusEvent e) {
                Text t = (Text) e.widget;
                if (t == text2) {
                    if (t.getText().length() < 3) {
                        t.setFocus();
                    }
                }
            }
        };
        text1.addFocusListener(focusListener);
        text2.addFocusListener(focusListener);

        s.open();
        while (!s.isDisposed()) {
            if (!d.readAndDispatch())
                d.sleep();
        }
        d.dispose();
    }
}