cannot be resolved to a variable in Java for base class

Question

I am new to java and creating a small program to clear with the basic fundamentals of the core java. I am creating a program of employee basic information and salary count. But when I am trying to access the parent variable so that I can use the variable and calculate the salary of the employee, but I am getting an error message that "empSalaryobj cannot be resolved to a variable".

Below is my Java Code,

class varEmployee {
    int empId;
    String empName;
    final String empCompany = "Tata Consultancy Services";
    int empSalary;
    String empGender;
    int empAge;
    String empNationality;
}

class setEmployee extends varEmployee{


    setEmployee(){

    }

    setEmployee(int empId){
        this.empId=empId;
        switch(empId){  

            case 1: 
                empName = "Aditya Batra";
                empSalary = 10000;
                empGender = "Male";
                empAge = 26;
                empNationality = "Indian";
            break;  

            case 2: 
                empName = "Vishal Sharma";
                empSalary = 20500;
                empGender = "Male";
                empAge = 26;
                empNationality = "Australia";
            break;  

            case 3: 
                empName = "Ashish Tiwari";
                empSalary = 30000;
                empGender = "Male";
                empAge = 28;
                empNationality = "Indian";
            break;  

            case 4: 
                empName = "Mona Lisha";
                empSalary = 40000;
                empGender = "Female";
                empAge = 24;
                empNationality = "Oganda";
            break;

            default:

                System.out.println("Invalid Employee ID");
        }  
    }

}

class getEmployee extends setEmployee {

    getEmployee(){

    }

    getEmployee(setEmployee obj){

        int empIdobj = obj.empId;
        String empNameobj = obj.empName;
        int empSalaryobj = obj.empSalary;
        String empGenderobj = obj.empGender;
        int empAgeobj = obj.empAge;
        String empNationalityobj = obj.empNationality;

        System.out.println("Employee Id: "+empIdobj+"\nName: "
                           +empNameobj+"\nSalary: "+empSalaryobj
                           +"\nGender: "+empGenderobj+"\nAge: "
                           +empAgeobj+"\nNationality: "+empNationalityobj
                           +"\nCompany Name: "+empCompany);

    }
}

class getEmployeeSalary extends getEmployee {

    int empSalaryCaculation = empSalaryobj;

    getEmployeeSalary(int empLeaves){
        float empSal = (empSalaryCaculation/30)*(30-empLeaves);
        System.out.println("Salary after leave deduction: "+empSal);
    }

}

public class Employee {

    public static void main(String[] args) {
        setEmployee setobj=new setEmployee(1);
        getEmployee getobj=new getEmployee(setobj);
        getEmployeeSalary salobj=new getEmployeeSalary(5);
    }

}

Can someone please help me out. I also want to know why this error message for.

Answer 1

you need to have a constructor for your getEmployeeSalary class

getEmployeeSalary(int empLeaves,getEmployee employee)
{
 float empSal = (employee.empSalaryobj/30)*(30-empLeaves);
        System.out.println("Salary after leave deduction: "+empSal);
}

and you need not to have int empSalaryCaculation = empSalaryobj; because you directly implement it inside the getEmployeeSalary constructor

also you need to make the empSalary a datafields of class getEmployee

public class getEmployee extends varEmployee
{
    public int empSalaryobj;



}

here I use Eric Allman indention style because it is better than K&R style in any debate

Answer 2

empSalaryobj is a local variable defined in the constructor of getEmployee. It is not a field of any of the parent classes of getEmployeeSalary, due to which it can't be accessed in the constructor of getEmployeeSalary.