How to Effectively Add Action Listeners to Buttons in Java?

Adding Action Listeners to Buttons in Java

Adding action listeners to buttons enables you to handle button clicks in your program. There are two main approaches to accomplish this:

1. Implementing ActionListener Interface

Your class can implement the ActionListener interface. For each button, call JButtonInstance.addActionListener(this);. Define the required implementation of public void actionPerformed(ActionEvent e) to handle the corresponding button click. However, note that multiple buttons using this method may require additional logic to determine which button was clicked.

2. Anonymous Inner Class (Recommended)

Use anonymous inner classes as shown in the example below:

<code class="java">jBtnSelection.addActionListener(new ActionListener() { 
  public void actionPerformed(ActionEvent e) { 
    selectionButtonPressed();
  } 
} );</code>

Define the corresponding selectionButtonPressed() method to handle the button click. This method is associated explicitly with the selected button, simplifying code for multiple buttons.

2. Using Lambda Expressions (Java 8 or Higher)

For Java 8 and above, you can use lambda expressions to achieve the same result in a more concise way:

<code class="java">jBtnSelection.addActionListener(e -> selectionButtonPressed());</code>

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