Problem with identifying the right Access Modifier

Question

Hello everyone,
I've struggled with identifying which Access Modifier I should use in this code (https://code.sololearn.com/cA12a84A19A1/#java).

This is the description of the test:

You are a manager at company that have two employees, James and Tom.
You wrote a program to calculate total employee salary: it creates two objects for workers and sets the corresponding parameters.
But something is wrong. The program doesn't provide access to attributes. Fix it.
Also complete the method to calculate and return the total salary.

I've tried several things, but I can't get it right...

Ops: I know that there's a method for "set/get", but I'm not quite there yet.

Hope you guys can help me! Thanks!

Answer 1

//complete the function to calculate the total salary

public static int CalculateTotalSalary(int s1, int s2)
{
return s1+s2;
}

Answer 2

RKK
Would you please explain why, int s1, int s2 and not int worker1.salary, and int worker2.salary?

Answer 3

Binh Tan Nguyen That's because function CalculateTotalSalary does not have any idea about the objects worker1 and worker2, so it's intuitive.

Besides this the function CalculateTotalSalary don't care about anything except calculating the total salary or in more simple words it's only work is to get two value from the parameter and simply return the addition value of two salaries.

public static int CalculateTotalSalary(int s1, int s2)
{
return s1+s2;
}

CalculateTotalSalary(worker1.salary, worker2.salary);

The above code snippets assign the value of worker1.salary to s1 and similarly the value of worker2.salary to s2 respectively.

We call this pass by value.

Answer 4

RKK, Again, thank you so much! Makes perfect sense!

Answer 5

you're most welcome 😊

Answer 6

public class Program
{
public static void main(String[] args) {
//James
Worker worker1 = new Worker();
worker1.name = "James";
worker1.salary = 200000;

//Tom
Worker worker2 = new Worker();
worker2.name = "Tom";
worker2.salary = 150000;

System.out.println(CalculateTotalSalary(worker1.salary,worker2.salary));
}
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public static int CalculateTotalSalary(int s1, int s2){
return s1+s2;
}
}
class Worker{
public String name;
public int salary;
}