JLabel Component in Java

Submitted by donbermoy on Saturday, November 22, 2014 - 23:29.

This is a tutorial in which we will going to create a program that has the JLabel Component using Java. The JLabel lets the user display a short text string or an image, or both. You cannot input a text on JLabel and cannot have the keyboard focus on it. So, now let's start this tutorial! 1. Open JCreator or NetBeans and make a java program with a file name of jLabelComponent.java. 2. Import the following packages below:

import java.awt.*; // used to access the FlowLayout Class
import javax.swing.*; //used to access the JFrame and JLabel class

3. Initialize your variable in your Main, variable frame for creating JFrame, and variable label1 to label5 for your JLabel component.

    JFrame frame = new JFrame("JLabel Component");
 
    JLabel label1 = new JLabel("Student ID:", JLabel.LEFT);
    JLabel label2 = new JLabel("First Name:", JLabel.RIGHT);
    JLabel label3 = new JLabel("Last Name:", JLabel.RIGHT);
    JLabel label4 = new JLabel("Age:", JLabel.LEFT);
    JLabel label5 = new JLabel("Student Information", JLabel.CENTER);

As you can see the above code,I have created 5 labels with their corresponding text and alignments. I have used the parameter of the JLabel which is the JLabel(String text, int horizontal alignment). And also you can put image on that using the ImageIcon class. The JLabel.LEFT indicates the alignment to left, JLabel.RIGHT indicates the alignment to left and JLabel.CENTER indicates the alignment to center. Now, to set the vertical alignment of the label, we will use the setVerticalAlignment method and we will use the center orientation in the label5 variable. To have also the tooltip in the label, we will use of the setToolTipText method.

    label5.setVerticalAlignment(JLabel.CENTER);
    label5.setToolTipText("This is a label!");

When running the program, this image will be the first to be shown. output

4. To add the labels to the frame, have this code below:

    frame.getContentPane().add(label1);
    frame.getContentPane().add(label2);
    frame.getContentPane().add(label3);
    frame.getContentPane().add(label4);
    frame.getContentPane().add(label5);

5. Lastly, set the size, visibility, and the close operation of the frame. Have also the FlowLayout as the layout manager of the frame. Have this code below:

       frame.setSize(300, 300);
       frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().setLayout(new FlowLayout());

Output: output

Here's the full code of this tutorial:

import java.awt.*; // used to access the FlowLayout Class
import javax.swing.*; //used to access the JFrame and JLabel class
 
 
public class jLabelComponent {
        
  public static void main(String[] args) {
        JFrame frame = new JFrame("JLabel Component");
 
    JLabel label1 = new JLabel("Student ID:", JLabel.LEFT);
    JLabel label2 = new JLabel("First Name:", JLabel.RIGHT);
    JLabel label3 = new JLabel("Last Name:", JLabel.RIGHT);
    JLabel label4 = new JLabel("Age:", JLabel.LEFT);
    JLabel label5 = new JLabel("Student Information", JLabel.CENTER);
 
    label5.setVerticalAlignment(JLabel.CENTER);
    label5.setToolTipText("This is a label!");
 
    frame.getContentPane().add(label1);
    frame.getContentPane().add(label2);
    frame.getContentPane().add(label3);
    frame.getContentPane().add(label4);
    frame.getContentPane().add(label5);
    
       frame.setSize(300, 300);
       frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().setLayout(new FlowLayout());
  }
}

For more inquiries and need programmer for your thesis systems in any kind of programming languages, just contact my number below. Best Regards, Engr. Lyndon Bermoy IT Instructor/System Developer/Android Developer/Freelance Programmer Mobile: 09488225971 Landline: 826-9296 E-mail:[email protected] Add and Follow me on Facebook: https://www.facebook.com/donzzsky Visit and like my page on Facebook at: https://www.facebook.com/BermzISware

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