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Let’s start out easy so that there is no user interaction yet. Write a Swing com

ID: 3802365 • Letter: L

Question

Let’s start out easy so that there is no user interaction yet. Write a Swing component MyLabels that extends JPanel and contains three JLabel instances that display “One”, “Two” and “Three”, respectively. Your component should prefer to have a size of 200*100 pixels, and have an etched border around it. Write a main method that creates and opens a JFrame instance that uses FlowLayout and contains three separate instances of MyLabels. (Inside the frame, there will therefore be a total of nine labels showing; that is, three labels inside each of your three MyLabels components.)

Explanation / Answer

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.FlowLayout;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;

public class MyLabels extends JPanel {
   private JLabel one, two ,three;

   public MyLabels()
   {
      one = new JLabel("One");
      n.setHorizontalAlignment(SwingConstants.CENTER);

      two = new JLabel("Two");
      s.setHorizontalAlignment(SwingConstants.CENTER);

      three = new JLabel("Three");
      e.setHorizontalAlignment(SwingConstants.CENTER);

      this.add(one); //Adding the labels to the panel
      this.add(two);
      this.add(three);
      this.setPreferedSize(new Dimension(200,100));
      this.setBorder(new EtchedBorder(EtchedBorder.RAISED)); //This can be either raised or lowered
   

   }

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

    frame.setLayout(new FlowLayout()); //creates a flow layout with centered alignment and a default 5 unit horizontal and vertical gap.

      for (int i = 0; i < 3; i++) {
      MyLabels panel = new MyLabels();
      frame.add(panel); //Adding panels to the frame
    }

    frame.setVisible(true);
}

}

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