C#: Create a new string of four copies, taking last four characters from a given string

Last update on December 20 2024 12:46:19 (UTC/GMT +8 hours)

Four Copies of Last Four Characters

Write a C# program to create a string of four copies, taking the last four characters from a given string. If the given string is less than 4, return the original one.

C# Sharp Exercises: Create a new string of four copies, taking last four characters from a given string

Sample Solution:-

C# Sharp Code:

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

public class Exercise32 {
    static void Main(string[] args) {
        // Declare a string variable 'str' to store user input
        string str;

        // Declare an integer variable 'l' and initialize it to 0
        int l = 0;

        // Display a message asking the user to input a string
        Console.Write("Input a string : ");

        // Read user input and store it in the 'str' variable
        str = Console.ReadLine();

        // Check if the length of the input string is greater than 4
        if (str.Length > 4) {
            // If the length is less than 4, concatenate the input string thrice
            // If the length is greater than or equal to 4, concatenate the last 4 characters of the input string four times
            Console.WriteLine(str.Length < 4 ? str + str + str : str.Substring(str.Length - 4) + str.Substring(str.Length - 4) + str.Substring(str.Length - 4) + str.Substring(str.Length - 4));
        }
    }
}

Sample Output:

Input a string : The quick brown fox jumps over the lazy dog.          
dog.dog.dog.dog.

Flowchart:

C# Sharp Code Editor:

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