Does Java 6 have a problem?

II downloaded the source code for the book from Mughal's website. Unfortunately some of my programs do not run. For example when I compile the program 7.2 on page 169 I get 39 errors. Is there a problem with the book. Now how do I learn please help because I want to complete the assignments as soon as possible. Another question is that will I lose marks if I solve a problem another way other than the one specified in the book since the book seem to have some errors in the content. Please help Doc.

2nd part - you can solve it anyway you want.

It could be the version of Java - I'll check with Mr Masombuka.

You don't say what errors you get but Program 7.2 uses EmployeeV3 class which is implemented in Program 7.1. In order to run 7.2 you must first compile 7.1 and make sure they are in the same directory.

Masombuka

Thank you Doc and Sombu!

I get 2 errors when I first compile Program 7.1 with class EmployeeV3. The first error is in line 13 where it complains about the key word void. It says illegal start of expression.
It then complains about line 47 where it says ';' semi-colon expected but I think there should be a bracket. Please help!

Post your code

public class EmployeeV3 { // Assume that no constructors are declared.
// Field variables
public static void main(String[] args){

String firstName;
String lastName;
double hourlyRate;
boolean gender; // false means male, true means female

// Instance methods

// Assign values to the field variables of an employee.
void setState(String fName, String lName,
double hRate, boolean genderValue) {
firstName = fName;
lastName = lName;
hourlyRate = hRate;
gender = genderValue;
}

// Determines whether an employee is female.
boolean isFemale() { return gender; }

// Computes the salary of an employee, based on the number of hours
// worked during the week.
double computeSalary(double numOfHours) {
assert numOfHours >= 0 : "Number of hours must be >= 0";
double normalNumOfHours = 37.5;
double weeklySalary = hourlyRate * normalNumOfHours;
if (numOfHours > normalNumOfHours) {
weeklySalary += 2.0 * hourlyRate * (numOfHours - normalNumOfHours);
}
return weeklySalary;
}

// Prints the values in the field variables of an employee.
void printState() {
System.out.print("First name: " + firstName);
System.out.print("\tLast name: " + lastName);
System.out.printf("\tHourly rate: %.2f", hourlyRate);
if (isFemale()) {
System.out.println("\tGender: Female";
} else {
System.out.println("\tGender: Male";
}
}
}
}

Dear Sombu and Doc,

I have already sorted out the above problem. I removed the main method and the last bracket. I then first compiled program 7.1 before compiling program 7.2 which has the main method and it runs as expected.

Thanx!