Gathering input when a button is clicked

[IntelMaster]

Basically, when a user clicks a button I want them to enter a number which is used to generate an answer. The code for the button is
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

[TheGuardian001]

And what exactly have you tried to accomplish this?

PS:It's pretty obvious you're the same person as yesterday...