Question

Lab Assignment # 2 - COMP 212 [Visual Studio - C#]

Lab Assignment # 2 - Programming 3 Exercise 02 (5 marks] Implement an extension method for built-in class String Builder to count the number of words contained in a StringBuilder object. For example, if a StringBuilder object sb="This is to test whether the extension method count can return a right answer or not”, the number of words contained in sb is 16.

Answer 1

Program:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CountWords
{
class Program
{
static void Main(string[] args)
{
string str;
Console.Write("\nEnter a string: ");
str = Console.ReadLine();

StringBuilder sb = new StringBuilder(str);
IEnumerable<string> words = sb.ToString().Split(' ');
int count = 0;
foreach (var c in words)
{
count++;
}
Console.WriteLine("\nThe number of words contained in sb is "+count);
Console.ReadKey();

}
}
}

Output:

Enter a string: This is to test whether the extension method count can return a right answer or not The number of words contained in sb is 16 Activate Windows Go to Settings to activate Windows.