Sort and search an array of objects
/*
C#: The Complete Reference
by Herbert Schildt
Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Sort and search an array of objects.
using System;
class MyClass : IComparable {
public int i;
public MyClass(int x) { i = x; }
// Implement IComparable.
public int CompareTo(object v) {
return i - ((MyClass)v).i;
}
}
public class SortDemo1 {
public static void Main() {
MyClass[] nums = new MyClass[5];
nums[0] = new MyClass(5);
nums[1] = new MyClass(2);
nums[2] = new MyClass(3);
nums[3] = new MyClass(4);
nums[4] = new MyClass(1);
// Display original order.
Console.Write("Original order: ");
foreach(MyClass o in nums)
Console.Write(o.i + " ");
Console.WriteLine();
// Sort the array.
Array.Sort(nums);
// Display sorted order.
Console.Write("Sorted order: ");
foreach(MyClass o in nums)
Console.Write(o.i + " ");
Console.WriteLine();
// Search for MyClass(2).
MyClass x = new MyClass(2);
int idx = Array.BinarySearch(nums, x);
Console.WriteLine("Index of MyClass(2) is " + idx);
}
}
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