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  • C# Program to Find the Length of an Array

    In this tutorial, we will write a C# program to find the length of an array entered by the user, we have used while loop and try–catch block for the exception

    Question:
    Write a C# program to find the length of an Array.

    Solution:
    Here first we take the arrays from the user and to exit from an array user need to enter –999 at last. -999 is an exit value that is defined at the beginning of the program.

    To take the user input, while loop is used inside which try-and catch blocks are executed. lastly array.Length is used to get how many elements the user entered.

    C# Program to find the length of an Array.

    It can also be done without the use of try-catch block

    Source Code

    using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

class Program
{
  static void Main(string[] arg)
  {
    //CONSTANT VALUE TO EXIT
    const int EXIT_VALUE = -999;
    List<int> numbers = new List<int> ();

    Console.WriteLine("Enter the number and press -999 at the end:");

    while (true)
    {
      try
      {
        var input = Console.ReadLine();
        int i = int.Parse(input);
        if (i == EXIT_VALUE) break;
        numbers.Add(i);
      }

      catch (System.Exception ex)
      {
        Console.WriteLine("Invalid Input!!");
      }
    }

    int[] array = numbers.ToArray();
    Console.WriteLine("Length of an Array is:{0}", array.Length);
  }
}

    Output:

  • Java Program to Remove all the Vowels from a String

    This post shows, How to remove all vowels from a string in java? with the help of replaceAll() method.

    Remove vowels from a string in java:

    Explanation:
    Removing vowels in java is easy, we will take the user input with the help of a Scanner class. we will use replaceAll() which takes in two parameters, one is the string to be replaced and another one is the string to be replaced with.

    Also, the vowels are “aeiou” so we replace those vowel letters by an empty string (“”) for both uppercase and lowercase vowel letters. Then print the result string without vowels.

    Java Program to Remove all the Vowels from a String.

    import java.util.Scanner;

public class RemoveVowel
{
  public static void main(String[] args)
  {
    Scanner sc = new Scanner(System.in);

    //user input
    System.out.println("Enter the string:");
    String inputStr = sc.nextLine();

    String resultStr = inputStr.replaceAll("[AEIOUaeiou]", "");

    System.out.println("Result String without vowels:");

    System.out.println(resultStr);

    sc.close();
  }
}

    The output of removing vowels from a string in java: