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| using System;
namespace ArraySorting
{
public class Employee: IComparable
{
public string name;
public int level;
public DateTime hiringDate;
public Employee(string name, int level, DateTime hiringDate)
{
this.name = name;
this.level = level;
this.hiringDate = hiringDate;
}
public int CompareTo(Object anObject)
{
if (anObject == null) return 1;
if (!(anObject is Employee))
{
throw new ArgumentException();
}
Employee anEmployee = (Employee)anObject;
if (level < anEmployee.level) return -1;
else
{
if (level == anEmployee.level)
{
if (hiringDate < anEmployee.hiringDate)
return -1;
else
{
if (hiringDate == anEmployee.hiringDate)
return 0;
else return 1;
}
}
else return 1;
}
}
}
public class ArraySort
{
public static void Main()
{
// Create and initialize a new Array instance.
Employee[] myEmployees = new Employee[10];
myEmployees[0] = new Employee("a", 2, new DateTime(1990, 1, 1));
myEmployees[1] = new Employee("b", 2, new DateTime(2000, 1, 1));
myEmployees[2] = new Employee("c", 2, new DateTime(1990, 1, 1));
myEmployees[3] = new Employee("d", 4, new DateTime(2000, 1, 1));
myEmployees[4] = new Employee("e", 4, new DateTime(1990, 1, 1));
myEmployees[5] = new Employee("f", 4, new DateTime(2000, 1, 1));
myEmployees[6] = new Employee("g", 1, new DateTime(1990, 2, 5));
myEmployees[7] = new Employee("h", 1, new DateTime(2000, 1, 1));
myEmployees[8] = new Employee("i", 1, new DateTime(1990, 1, 1));
myEmployees[9] = new Employee("j", 0, new DateTime(2001, 1, 1));
// Display the values of the Array.
Console.WriteLine("The Array instance initially contains values:");
PrintIndexAndValues(myEmployees);
// Sort the values of the Array.
Array.Sort(myEmployees);
// Display the values of the Array.
Console.WriteLine("After sorting:");
PrintIndexAndValues(myEmployees);
}
public static void PrintIndexAndValues(Array myEmployees)
{
foreach (Employee e in myEmployees)
{
Console.WriteLine("name: {0} \tlevel: {1} \tdate:{2:d}", e.name, e.level, e.hiringDate);
}
}
}
} |
