Insert an image or icon in JLabel

In this tutorial, we'll create an JLabel with a ImageIcon. Both are in the package javax.swing. JLabel is used to display the text and the image or both, and you can specify the position of the text in relation to the image. By default, the image and text are aligned horizontally. You can even manipulate the pixels in the icon with the setIconTextGap().

ImageIcon creates the image from the URL, filename or an array of bits. The most commonly used case is the filename by indicating the path. ImageIcon implements two interfaces:

1- Icon; displays the image specially used with the decoration.
2- Seriazable: is used to read the data stream from the specified path.

The implementation is easy, here are the steps:
1- Create the JFrame.
2- Create the JLabel with text if you need it.
3- Create the ImageIcon:

ImageIcon icon = new ImageIcon(imgUrl);

4- Associate the image with JLabel.

jlabel.setIcon(icon);

Note: We can leave the creation of JLabel at the end because it has a constructor:

JLabel("text" icon, JLabel.CENTER);

Example

import javax.swing.ImageIcon; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 

public class AddImage {

 public static void main(String[] args) {
 
 //Creating JFrame
 JFrame frame = new JFrame("JLabel Test"); 
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
 frame.setSize(530,600); 
 frame.setLocationRelativeTo(null); 
 frame.setVisible(true); 
 
 //Image URL
 String imgUrl="icon.png"; 
 ImageIcon icon = new ImageIcon(imgUrl); 
 
 //Creating JLable with a left
 JLabel jlabel = new JLabel(icon, JLabel.CENTER); 
 
 //add both JLabel to JFrame
 frame.getContentPane().add(jlabel); 
 frame.validate(); 
 }
}

After run: