What is Label?

The Label is the most common and frequent use widget, it’s display static information such as String or Image, and no user input involve.

How to create a Label widget?

This code snippet will create a label at position x=100, y=50, width = 300, height = 30, and display “I am Label” text.

Label label = new Label(shell, SWT.BORDER);
label.setSize(300,30);
label.setLocation(100, 50);
label.setText("I am Label");

How to create a separator with Label?

Sometime Label is use to display as a separator between component. Here is how to implement it.

This code snippet will create a Label and draw a horizontal line as separator inside it.

Label shadow_sep_h = new Label(shell, SWT.SEPARATOR | SWT.SHADOW_OUT | SWT.HORIZONTAL);
shadow_sep_h.setBounds(50,80,100,50);

This code snippet will create a Label and draw a vertical line as separator inside it.

Label shadow_sep_v = new Label(shell, SWT.SEPARATOR | SWT.SHADOW_IN | SWT.VERTICAL);
shadow_sep_v.setBounds(50,100,5,100);

Here is the full SWT Label source code.

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import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
 
public class SWTLabel {
 
public static void main (String [] args) {
	Display display = new Display ();
	Shell shell = new Shell(display);
 
	Label label = new Label(shell, SWT.BORDER);
	label.setSize(100,30);
	label.setLocation(50, 50);
	label.setText("I am a Label");
 
	Label shadow_sep_h = new Label(shell, SWT.SEPARATOR | SWT.SHADOW_OUT | SWT.HORIZONTAL);
	shadow_sep_h.setBounds(50,80,100,50);
 
	Label shadow_sep_v = new Label(shell, SWT.SEPARATOR | SWT.SHADOW_IN | SWT.VERTICAL);
	shadow_sep_v.setBounds(50,100,5,100);
 
 
	shell.setSize(300,300);
	shell.open ();
	while (!shell.isDisposed ()) {
		if (!display.readAndDispatch ()) display.sleep ();
	}
	display.dispose ();
}
}

What is SWT class?

The SWT class is package as org.eclipse.swt.SWT, it’s used to specify the widget style, like text alignment (SWT.LEFT, SWT.CENTER, SWT.RIGHT), widget shape SWT.BORDER, SWT.SHADOW_IN and so on. This is a very common class, please use Eclipse content assistant (CTRL + space) to list down all it’s members.

Please access SWT API documentation to know more about it
http://help.eclipse.org/stable/nftopic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/swt/SWT.html