on click listener code example

Example 1: button listener android

public class MyActivity extends Activity {

     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         setContentView(R.layout.my_layout_id);

         final Button button = (Button) findViewById(R.id.my_cool_button);
         button.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 // your handler code here
             }
         });
     }

}

Example 2: event listener javascript

const element = document.querySelector(".class__name");

element.addEventListener("click", () => {
	console.log("clicked element");
});

Example 3: event listener javascript

document.getElementById("myBtn").addEventListener("click", displayDate);