import java.awt.Color;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.border.LineBorder;
public class Main {
public static void main(String[] argv) {
LineBorder lineBorder = (LineBorder)BorderFactory.createLineBorder(Color.black);
JLabel component = new JLabel("label");
component.setBorder(lineBorder);
}
}