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Thread: Need help With program

  1. #1
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    Unhappy Need help With program

    Hi Guys, I am a noob at this java programming thing. I have 3 classes. When My program runs, it works good the first time when i Choose option 1(only option that is working for now). But after a loop, the data is over written, what can i do to keep my data even the counter. I understand why because every loop it does, it reinitialize everything which erases everything. I cannot think of a solution (kinda new in this).


     
     
    package comp2500_1;
    import java.util.Scanner;
    public class EmployeeApplication {
    Scanner input=new Scanner(System.in);
     Company x=new Company();
     
     
     
        public static void main(String[] args) {
            test p=new test();
            EmployeeApplication c=new EmployeeApplication();
            int choice =10,num=100;
     
     
            while (num!=0){
            num=c.choices(choice);
            c.sets(num);   
            }
     
         }
     
     
     
        public int choices(int choice){
            while (choice !=0){
        System.out.println("Please Enter Your Choice\n");
        System.out.println("Add a new employee to the company 1");
        System.out.println("Query for a particular employee 2");
        System.out.println("Raise an employee's Salary 3");
        System.out.println("List all the employees at the company 4");
        System.out.println("To Exit Press 0");
         choice=input.nextInt();
        return choice;
            }
            return 0;
        }
     
        public void sets(int s){
     
            if (s==1)
            {
                System.out.println(" Enter the persons First Name,Last Name and Salary");
                String fname=input.next();
                String lname=input.next();
                double num=input.nextDouble();
                x.addEmployee(fname, lname, num);
            }  
            else if (s==2)
            {
                System.out.println("Please enter the employee ID");
                int num2=input.nextInt();
              //  d.getEmployee(num2);
            }
            else if (s==3)
            {
                System.out.println("Please enter the employees ID");
                int num3=input.nextInt();
                System.out.println("Please enter the percentage increase of salary");
                double sal=input.nextDouble();
                x.raiseSalary(num3, sal);
            }
            else if (s==4)
            {
              //  d.getEmployees();
            }
        }
    }

    Thats 1 class and the other is

     
    public class Employee {
        private String firstName,lastName;
        private double salary;
        private int ID=990;
    private String[] EmpF=new String[100],EmpL=new String[100];
    private double[] EmpSal=new double[100];
    private int counter=0;    
        EmployeeApplication j=new EmployeeApplication();
     
     
     
     
        public Employee(String firstName, String lastName, double salary){
     
            setFName(firstName);
            setLName(lastName);
            setSal(salary);
           counter++;
     
        }
     
     
     
     public Employee() {
     
        }
     
     
        public String toString(){
            return String.format("%s %s %f,",firstName, lastName, salary);
        }
        public void raiseSalary(double percentIncrease){
            salary=salary+(salary*(percentIncrease/100));
        }
     
        public void setSal(double d)
        {
            EmpSal[counter]=d;
            salary=d;
        }
        public void setFName(String fN)
        {
            EmpF[counter]=fN;
            firstName=fN;
        }
        public void setLName(String lN)
        {
            EmpL[counter]=lN;
            lastName=lN;
        }
        public boolean getEmployee(int employeeID){
            employeeID=((employeeID-ID)/10)-1;
            if(EmpF[employeeID]==null)
                return false;
            else
                return true;
        }
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Need help With program

    But after a loop, the data is over written, what can i do to keep my data
    What variable has the data the you want to keep?
    One way to keep data from within a loop is to use an array or arraylist. Each time the code goes around the loop it could change the index to the array so that the new data goes into the next slot in the array and the old data is kept in the previous slot in the array.
    If you don't understand my answer, don't ignore it, ask a question.

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