[hardwired]

Code:

// change this
public static void Main(String empName, double hoursWorked, double payRate, double total)
// to this
public static void main()
...
// To get your class to work with these two statements
Employee employee = new Employee();
Employee employee = new Employee(empName, hoursWorked, payRate, total);
// you would have to add more constructors:
class Employee
{
    public String empName;
    double hoursWorked;
    double payRate;
    double total;

    public Employee()
    {
        this(null, 0.0, 0.0);
    }

    public Employee(String name, double hours, double rate)
    {
        this(name, hours, rate, 0.0);
        computeWeeklyPay();
    }

    public Employee(String name, double hours, double rate, double total)
    {
        this.empName = name;
        this.hoursWorked = hours;
        this.payRate = rate;
        this.total = total;
    }
    ...

or you could change the constructor in the Main class to

Code:

Employee employee = new Employee(empName, hoursWorked, payRate);

and call computeWeeklyPay() in the Employee constructor to calculate total as you had it.