count button clicks

Question

I want to count the number of times the button is clicked using GUI.

I did this code:

private void jButton1ActionPerformed(java.awt.event.ActionEvent         


        

Answer 1

Depending on how you are instantiating this class you need to declare the clicked variable at either the field level or the class variable level. Currently, the scope of the clicked variable is local to the method.

Option 1

int clicked = 0;

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) 
 {                                         
  clicked++;
  System.out.println(clicked);
 }  

Option 2

static int clicked = 0;

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) 
 {                                         
  clicked++;
  System.out.println(clicked);
 } 

The option you use will depend on instantiation. The second option should be avoided if possible.