Question

12. Predict the output generated at the marked println lines in the following program. The program makes use of the class Employee that is also given. Please enter your answers in the space provided below the code.

public class Employee {

private String name;

private double salary;

public Employee(String name, double salary) {

this.name = name;

this.salary = salary;

}

public String getName() {

return name;

}

public double getSalary() {

return salary;

}

public void raiseSalary(double percent) {

double raise = salary * percent/100;

salary += raise;

}

}

public class Pr3 {

public static void main(String[] args) {

double percent = 10;

System.out.println("percent = " + percent); //---------------------(a)

doubleValue(percent);

System.out.println("percent = " + percent); //---------------------(b)

Employee john = new Employee("John", 75000);

System.out.println("Salary: $" + john.getSalary()); //-----------------(c)

doubleSalary(john);

System.out.println("Salary: $" + john.getSalary()); //-----------------(d)

Employee a = new Employee("Emily", 90000);

Employee b = new Employee("Henry", 100000);

System.out.println("a’s Name: " + a.getName()); //-------------------(e)

System.out.println("b’s name: " + b.getName()); //-------------------(f)

swap(a, b);

System.out.println("a’s Name: " + a.getName()); //-------------------(g)

System.out.println("b’s name: " + b.getName()); //-------------------(h)

}

public static void doubleValue(double x) {

x = 2 * x;

System.out.println("End of method: x = " + x); //-------------------(i)

}

public static void doubleSalary(Employee y) {

y.raiseSalary(200);

System.out.println("End of method: Salary : " + y.getSalary()); //-----(j)

}

public static void swap(Employee x, Employee y) {

Employee temp = x;

x = y;

y = temp;

System.out.println("End of method: x is " + x.getName()); //-----------(k)

System.out.println("End of method: y is " + y.getName()); //-----------(l)

}

} (a) Answer(a):

(b) Answer(b):

(c) Answer(c):

(d) Answer(d):

(e) Answer(b):

(f) Answer(e):

g) Answer(f):

(h) Answer(g):

(i) Answer(h):

(j) Answer(i): (

k) Answer(j):

(l) Answer(k):

(m) Answer(l):

Answer 1

(a) Answer(a): 10.0

(b) Answer(b): 20.0

(c) Answer(c): $75000.0

(d) Answer(d):  $225000.0

(e) Answer(e): Emily

(f) Answer(f): Henry

g) Answer(g): Emily

(h) Answer(h): Henry

(i) Answer(i): 20.0

(j) Answer(j):  225000.0

k) Answer(l): Henry

(l) Answer(l): Emily

// Screenshot of the code & output

// Code to copy

Employee.java

public class Employee
{
   private String name;
   private double salary;

   public Employee(String name, double salary)
   {
       this.name = name;  
       this.salary = salary;

   }

   public String getName()
   {
       return name;

   }

   public double getSalary()
   {
       return salary;

   }

   public void raiseSalary(double percent)
   {
       double raise = salary * percent/100;  
       salary += raise;

   }

}

Pr3.java

public class Pr3
{

   public static void main(String[] args)
       {
           double percent = 10;
  
           System.out.println("percent = " + percent); //---------------------(a)
  
           doubleValue(percent);
  
           System.out.println("percent = " + percent); //---------------------(b)
  
           Employee john = new Employee("John", 75000);
  
           System.out.println("Salary: $" + john.getSalary()); //-----------------(c)
  
           doubleSalary(john);
  
           System.out.println("Salary: $" + john.getSalary()); //-----------------(d)
  
           Employee a = new Employee("Emily", 90000);
  
           Employee b = new Employee("Henry", 100000);
  
           System.out.println("a’s Name: " + a.getName()); //-------------------(e)
  
           System.out.println("b’s name: " + b.getName()); //-------------------(f)
  
           swap(a, b);
  
           System.out.println("a’s Name: " + a.getName()); //-------------------(g)
  
           System.out.println("b’s name: " + b.getName()); //-------------------(h)

       }

       public static void doubleValue(double x)
       {
           x = 2 * x;  
           System.out.println("End of method: x = " + x); //-------------------(i)

       }

       public static void doubleSalary(Employee y)
       {  
           y.raiseSalary(200);  
           System.out.println("End of method: Salary : " + y.getSalary()); //-----(j)

       }

       public static void swap(Employee x, Employee y)
       {
           Employee temp = x;  
           x = y;  
           y = temp;  
           System.out.println("End of method: x is " + x.getName()); //-----------(k)  
           System.out.println("End of method: y is " + y.getName()); //-----------(l)  
           }
}