Java SWT Password Field Tutorial with Examples
1. SWT PasswordField
No ADS
Password Field is a user control allowing users to enter their password, its contents can be read by application. Password Field does not display the characters that users enter, instead of that, it displays a circle corresponding to each character typed.
In order to create a password field, you need to create it from Text class with style SWT.PASSWORD. Note that the password field is entered in single line and not in multiple lines.
// Create a Password field.
Text passwordField = new Text(shell, SWT.SINGLE | SWT.BORDER | SWT.PASSWORD);
// Set echo char.
passwordField.passwordField.setEchoChar('*');
2. PasswordField example
PasswordFieldDemo.java
package org.o7planning.swt.passwordfield;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class PasswordFieldDemo {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
// Layout
RowLayout rowLayout = new RowLayout();
rowLayout.spacing = 10;
rowLayout.marginLeft = 10;
rowLayout.marginTop = 10;
shell.setLayout(rowLayout);
Text passwordField = new Text(shell, SWT.SINGLE | SWT.BORDER | SWT.PASSWORD);
passwordField.setEchoChar('*');
Button button = new Button(shell, SWT.PUSH);
button.setText("Show Password");
Label labelInfo = new Label(shell, SWT.NONE);
labelInfo.setText("?");
button.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
labelInfo.setText(passwordField.getText());
labelInfo.pack();
}
});
shell.setText("SWT Password Field (o7planning.org)");
shell.setSize(400, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
No ADS
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