Swing JButton Border Example

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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;

public class JavaSwingJButtonBorder {

	public static void main(final String args[]) {
		JFrame frame = new JFrame("Line Border");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		Border border = new LineBorder(Color.RED, 10);
		JButton thickButton = new JButton("Click Me");
		thickButton.setBorder(border);

		Container contentPane = frame.getContentPane();
		contentPane.add(thickButton, BorderLayout.NORTH);
		frame.pack();
		frame.setSize(300, frame.getHeight());
		frame.setVisible(true);
	}
}

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