Here is the code which is written in + - / * button:
int num1=Integer.parseInt(a.getText());
int num2=Integer.parseInt(b.getText());
int num3=num1+num2;
c.setText(""+num3);
/// change the + operator according to your output
Check Out Other Easy Tutorial:
NetBeans tutorial Add image in jframe
• NetBeans tutorial Add image in jframe
NetBeans tutorial : table of any number HD
• NetBeans tutorial : table of any number
Hope you like the video, stay connected to get more stuff