Button event

Onclick in js

	<input type="text" name="text" id="test" onmouseover="skriv('klick')">
    <input type="button" name="send" value="Skicka" id="klick" onclick="skriv('test')">
    
    
    <script src="lib/script.js"></script>


// in lib/script.js

  function skriv(name) {
    document.getElementById(name).style.backgroundColor='red';
  }

Button event

import java.awt.*;// import functions 
import java.awt.event.*;

public class buttonevent extends Frame implements ActionListener {
    int num;
    Button b1;
    TextField t1;

    public buttonevent() {//constructor
        setLayout(new FlowLayout());

        b1 = new Button("click me");//button named "click me" is created.
        t1 = new TextField(20);

        add(b1);//that button is added to the frame by add function.
        add(t1);

        b1.addActionListener(this);

    }

    public void actionPerformed(ActionEvent ae) {//event function
        String cmd = ae.getActionCommand();
        if (num == 0) {
            System.out.println(cmd);
        }
        if (cmd.equals("click me")) {
            num++;
        }
        if ((num % 2) != 0) {
            t1.setText("Hello Buddy!");
        }
        if ((num % 2) == 0) {
            t1.setText(" ");
            System.out.println(num);
        }
    }

    public static void main(String args[]) {//main function
        buttonevent ob = new buttonevent();
        ob.setSize(500, 500);
        ob.setVisible(true);
        ob.setTitle("button Event Handling");
    }
}

-1

Source: raw.githubusercontent.com

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