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how to add event listener to jbutton

Shaun Modipane answered on October 20, 2022 Popularity 9/10 Helpfulness 1/10

answer how to add event listener to jbutton

how to add event listener to jbutton

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import java.awt.event.ActionEvent;//we need this datetype to call the action of the button
import java.awt.event.ActionListener; 
import javax.swing.JFrame;
import javax.swing.JButton;

class action implements ActionListener{
    @Override
    public void actionPerformed(ActionEvent event){
      	/*in this method you will write code that the button must perform*/
        System.out.println("hello");//when you press the button it will print hello in the console
    }
}

public class Anser{
	public static void main(String[] args){
      JFrame window = renderWindow(); //this line sets the property of Jframe and finally renders the window on the screen 
      JButton submitBtn = addJButton(window, "SUBMIT", X_POSITION_FORM + 100, Y_POSITION_FORM + 100); //this line sets the property of JButton and then adds button to the frame
      
      //answer
      submitBTN.addActionListener(new action()); //this line adds an action listener proper to the button 
      /*
      note: The action listener property inputs some object that implements the ActionListener interface such that when the button is clicked then the actionPerformed method will be called
      */
    }
  
  	public static JFrame renderWindow(){
        final int FRAME_LENGTH = 500;
        final int FRAME_WIDTH = 300;
        JFrame window = new JFrame("setActionListener Lesson");
        window.setSize(FRAME_LENGTH, FRAME_WIDTH);
        window.setLayout(null);//this line ensures that the layout is null so that i could place the JComponents where ever i want
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //this line ensure that the application ends when the window closes
        window.setVisible(true);
        return window;
    }
  
}

Popularity 9/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: add event-listener java jbutton

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Contributed on Oct 20 2022

Shaun Modipane

0 Answers Avg Quality 2/10

how to add event listener to jbutton

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