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  1. import java.util.Iterator;
  2. import java.util.LinkedList;
  3. import java.util.Queue;
  4.  
  5. public class Main
  6. {
  7.  
  8. public static void main(String[] args) 
  9. {
  10.     EmployeeList emp = new EmployeeList();
  11.     /*emp.enqueue(new SalesManager("Gee", 1000));
  12.     emp.enqueue(new SalesManager("Gal", 1000));
  13.     emp.enqueue(new SalesManager("Gem", 1000));*/
  14.     emp.enqueue(new SalesPerson("John", 0.03));
  15.     emp.enqueue(new SalesPerson("Joan", 0.04));
  16.     emp.enqueue(new SalesPerson("Jack", 0.02));
  17.     /*emp.enqueue(new Manager("Fred", 10000));
  18.     emp.enqueue(new Manager("Frank", 5000));
  19.     emp.enqueue(new Manager("Florence", 3000));
  20.     emp.enqueue(new Programmer("Linda", 7));
  21.     emp.enqueue(new Programmer("Larry", 5));
  22.     emp.enqueue(new Programmer("Lewis", 3));*/
  23.  
  24.     /*emp.setHours("Linda", 35);
  25.     emp.setHours("Larry", 23);
  26.     emp.setHours("Lewis", 3);*/
  27.     emp.setSales("John", 12000);
  28.     emp.setSales("Joan", 10000);
  29.     emp.setSales("Jack", 5000);
  30.     /*emp.setSales("Gee", 4000);
  31.     emp.setSales("Gal", 3000);
  32.     emp.setSales("Gem", 2000);
  33.     emp.setSalary("Gee", 1000);
  34.     emp.setSalary("Gal", 2000);
  35.     emp.setSalary("Gem", 3000);*/
  36.     emp.display();
  37. }
  38. }
  39.  
  40.  
  41.  
  42.  
  43. class EmployeeList 
  44. {
  45. Queue<Employee> empList = new LinkedList<Employee>();
  46.  
  47. Employee find(String nm)
  48. {
  49.     Iterator<Employee> it = empList.iterator();
  50.     while(it.hasNext())
  51.     {
  52.  
  53.         Employee em = (Employee)it.next();
  54.  em.display();
  55.   System.out.println(nm + " is " + em.name + " really? " + nm.equals(em.name));
  56.         if(em.name.equals(nm))
  57.         {
  58.             return em;
  59.         }   
  60.     }
  61.     return null;
  62. }
  63.  
  64. double payroll()
  65. {
  66.     double payroll = 0.0;
  67.     Iterator<Employee> it = empList.iterator();
  68.     while(it.hasNext())
  69.     {
  70.         Employee em = (Employee)it.next();
  71.         payroll += em.computePay(); 
  72.     }
  73.     return payroll;
  74. }
  75.  
  76. void display()
  77. {
  78.     Iterator<Employee> it = empList.iterator();
  79.     while(it.hasNext())
  80.     {
  81.         Employee em = (Employee)it.next();
  82.         em.display();   
  83.     }
  84.     System.out.println("\nPayroll: " + payroll());
  85. }
  86.  
  87. void enqueue(Employee e)
  88. {
  89.     empList.add(e);
  90. }
  91.  
  92. void setHours(String nm, int hrs)
  93. {
  94.     Employee em = find(nm);
  95.     /*if(em == null)
  96.         return;*/
  97.     em.setHours(hrs);
  98. }
  99.  
  100. void setSalary(String nm, float salary)
  101. {
  102.     Employee em = find(nm);
  103.     /*if(em == null)
  104.         return;*/
  105.     em.setSalary(salary);
  106. }
  107.  
  108. void setSales(String nm, double sales)
  109. {
  110.     System.out.println(nm + " " + sales);
  111.     Employee em = find(nm);
  112.     /*if(em == null)
  113.         return;*/
  114.     em.setSales(sales);
  115. }
  116. }
  117.  
  118. abstract class Employee 
  119. {
  120. String name;
  121.  
  122. Employee() {}
  123. Employee (String nm) { name = nm; }
  124. abstract double computePay();
  125. void display () {}
  126. void setHours(double hrs) {}
  127. void setSales(double sales) {}
  128. void setSalary(double salary) { System.out.println("NO!"); }
  129.  }
  130.  
  131. class WageEmployee extends Employee 
  132. {
  133. double rate;
  134. double hours;
  135.  
  136. WageEmployee(String name)
  137. {
  138.     this.name = name;
  139.  
  140. }
  141. WageEmployee(String name, double rate)
  142. {
  143.     this.name = name;
  144.  
  145.     this.rate = rate;
  146. }
  147.  
  148. double computePay()
  149. {
  150.     return rate * hours;
  151. }
  152.  
  153. void setHours(double hrs) 
  154. {
  155.     hours = hrs;
  156.     System.out.println("Set Hours to: " + hours);
  157. }
  158.  
  159.  void display () 
  160.  {
  161.      System.out.println("Name: " + name + " Hours: " + hours + " Rate: " + rate);
  162.  }
  163. }
  164.  
  165. class SalesPerson extends WageEmployee 
  166. {
  167. double comission;
  168. double salesMade;
  169.  
  170. SalesPerson(String name, double commision) 
  171. {
  172.     super(name);
  173.     this.comission = commision;
  174. }
  175.  
  176. double computePay()
  177. {
  178.     return comission * salesMade;
  179. }
  180.  
  181. void setSales(double sales) 
  182. {
  183.     salesMade = sales;
  184.     System.out.println("Set sales to: " + salesMade);
  185. }
  186.  
  187. void display () 
  188.  {
  189.      System.out.println("Name: " + name + " Commision: " + comission + " Sales: " + salesMade);
  190.  }
  191. }
Success #stdin #stdout 0.03s 245632KB
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Standard input is empty
stdout
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John 12000.0
Name: John Commision: 0.03 Sales: 0.0
John is John really? true
Set sales to: 12000.0
Joan 10000.0
Name: John Commision: 0.03 Sales: 12000.0
Joan is John really? false
Name: Joan Commision: 0.04 Sales: 0.0
Joan is Joan really? true
Set sales to: 10000.0
Jack 5000.0
Name: John Commision: 0.03 Sales: 12000.0
Jack is John really? false
Name: Joan Commision: 0.04 Sales: 10000.0
Jack is Joan really? false
Name: Jack Commision: 0.02 Sales: 0.0
Jack is Jack really? true
Set sales to: 5000.0
Name: John Commision: 0.03 Sales: 12000.0
Name: Joan Commision: 0.04 Sales: 10000.0
Name: Jack Commision: 0.02 Sales: 5000.0

Payroll: 860.0
https://ideone.com/Zo5OV
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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