Java Proje: Employee (OOP)

 public class Main2 {

    public static void main(String[] args) {
        Employee employer1= new Employee("Hasan" , 2000,8,2000);
        Employee employer2= new Employee("Ayşe" , 1700,9,2020);
        Employee employer3= new Employee("Aziz" , 800,10,2016);
        Employee employer4= new Employee("Ceren" , 1200,9,2010);
        Employee employer5= new Employee("Sude" , 900,8,2009);

        System.out.println("Name:" + employer1.name);
        System.out.println("Salary:" + employer1.salary);
        System.out.println("Work Hours:" + employer1.workHours);
        System.out.println("Hire Year:" + employer1.hireYear);
        employer1.Tax();
        employer1.BonusMethod();
        employer1.workingYear();

        System.out.println("-------------");


        System.out.println("Name:" + employer2.name);
        System.out.println("Salary:" + employer2.salary);
        System.out.println("Work Hours:" + employer2.workHours);
        System.out.println("Hire Year:" + employer2.hireYear);
        employer2.Tax();
        employer2.BonusMethod();
        employer2.workingYear();

        System.out.println("-------------");

        System.out.println("Name:" + employer3.name);
        System.out.println("Salary:" + employer3.salary);
        System.out.println("Work Hours:" + employer3.workHours);
        System.out.println("Hire Year:" + employer3.hireYear);
        employer3.Tax();
        employer3.BonusMethod();
        employer3.workingYear();

        System.out.println("-------------");

        System.out.println("Name:" + employer4.name);
        System.out.println("Salary:" + employer4.salary);
        System.out.println("Work Hours:" + employer4.workHours);
        System.out.println("Hire Year:" + employer4.hireYear);
        employer4.Tax();
        employer4.BonusMethod();
        employer4.workingYear();

        System.out.println("-------------");

        System.out.println("Name:" + employer5.name);
        System.out.println("Salary:" + employer5.salary);
        System.out.println("Work Hours:" + employer5.workHours);
        System.out.println("Hire Year:" + employer5.hireYear);
        employer5.Tax();
        employer5.BonusMethod();
        employer5.workingYear();
             }
          }  

   public class Employee {

    public String name;
    public double salary;
    public double workHours;
    public int hireYear;

    Employee(String name, double salary, double workHours, int hireYear) {
        this.name = name;
        this.salary = salary;
        this.workHours = workHours;
        this.hireYear = hireYear;
    }

    public void Tax() {
        if (salary <= 1000) {
            System.out.println("Maaşı: " + salary);
        } else {
            double taxAccount = (double) (salary * 3 / 100);
            double newSalary = (double) (salary - taxAccount);
            System.out.println("Maaşı:" + newSalary);
        }
    }

    public void BonusMethod() {  // en fazla 3 saat mesaiye kalınabilir.
        if(workHours-8==1) {
            System.out.println("Mesaiye kaldı");
            double shift=(double)(salary+30);
            double totalyEarning=(double)(salary+shift);
            System.out.println("Maaşı:"+ totalyEarning);
        }
        else if(workHours-8==2){
            System.out.println("Mesaiye kaldı");
            double shift=(double)(salary+60);
            double totalyEarning=(double)(salary+shift);
            System.out.println("Maaşı:"+ totalyEarning);

        }
        else if(workHours-8==3){
            System.out.println("Mesaiye kaldı");
            double shift=(double)(salary+90);
            double totalyEarning=(double)(salary+shift);
            System.out.println("Maaşı:"+ totalyEarning);

        }
        else {
            System.out.println("Mesaiye kalmadı");
            System.out.println("Maaşı:" + salary);
        }
    }
    public void workingYear(){
        if( 2023-hireYear<10){
            double interest=(double)(salary*5/100);
            double interestSalary =(double) (interest+salary);
            System.out.println("Zamlı Maaş:" + interestSalary);
        }
        else if(2023-hireYear<=19 && 2023-hireYear>9){
            double interest=(double)(salary*10/100);
            double interestSalary =(double) (interest+salary);
            System.out.println("Zamlı Maaş:" + interestSalary);
        }
        else if(2023-hireYear>=20){
            double interest=(double)(salary*15/100);
            double interestSalary =(double) (interest+salary);
            System.out.println("Zamlı Maaş:" + interestSalary);
        }
    }
}