Employee Working Hours Calculation System using Java

Initialize the employee number, Hourswork,and Hoursrate to calculate a grosswage use the following condition. if the
employee work more than 40 hours then he will paid the hour work over 40 at the rate of the 2 times than than normal rate others get
the normal payment.

Make the Design using Netbeans IDE

I attched the video Below

Here is the Source Code

double Hwork,Hrate,Grosswage,tax;
        
        
        Hwork = Double.parseDouble(txtHwork.getText());
        Hrate = Double.parseDouble(txtHrate.getText());
        
        if(Hwork > 40)
        {
            Grosswage = ((Hwork - 40) * 2 * Hrate) +( 40 * Hrate );

        }
        else
        {
            Grosswage =  40 * Hrate ;
        }

        lblGrosswage.setText(Double.toString(Grosswage));

I attached the video below How to make this System