Program to find the occurrence of the character in a string in C#

In some interviews or exams, a problem is provided to the interviewee or student to find out the occurrence of the character in a string. In this example, I will help you in solving that problem/program with the easiest approach.

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Program to Swap two numbers in C#

Write a program to Swap two numbers in C#

In many Interviews, the Interviewer asks the Interviewee to write a program to swap two numbers. There are multiple methods/ways to swap numbers in C#, out of which two popular methodologies are Swapping two numbers with third/temporary variable and another is swapping two numbers without using a third/temporary variable (using + and – arithmetic operator). Let’s see both approaches in detail. 

Swap two numbers by using third/temporary variable:

As you can see in the below image, it’s very simple to swap two numbers with a third temporary variable.

Program to swap two numbers by using third/temporary variable in C# is provided below:

int num1, num2, temp; //Get two number from the user to swap Console.WriteLine("Enter first number"); num1 = int.Parse(Console.ReadLine()); Console.WriteLine("Enter second number"); num2 = int.Parse(Console.ReadLine()); Console.WriteLine("Values before swapping: num1=" + num1 + " and num2=" + num2); temp = num1; num1 = num2; num2 = temp; Console.WriteLine("Values after swapping: num1=" + num1 + " and num2=" + num2); //Console.ReadLine() to hold the screen after the execution of the program Console.ReadLine();

Output:

Swap two numbers without using any third/temporary variable:

As you can see in below image it’s very easy to swap the two numbers without using third variable. 

Program to swap two numbers without using third/temporary variable is provided below:

int num1, num2; //Get two number from the user to swap Console.WriteLine("Enter first number"); num1 = int.Parse(Console.ReadLine()); Console.WriteLine("Enter second number"); num2 = int.Parse(Console.ReadLine()); Console.WriteLine("Values before swapping: num1=" + num1 + " and num2=" + num2); num1 = num1 + num2; num2 = num1 - num2; num1 = num1 - num2; Console.WriteLine("Values after swapping: num1=" + num1 + " and num2=" + num2); //Console.ReadLine() to hold the screen after the execution of the program Console.ReadLine();

Output:

I hope this article will help you in your interview preparation.

Thanks

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Top C# Programs for Interview

As I got several emails regarding the help for the Interview, so, I decided to share the programs that are asked during the interview. These programs also help you in an understanding of the problems/algorithms in the easiest way. I will update the programs every week so stay tuned. You can also write an email (or comment in the comment box) to me for any specific program required.

Top C# Program for Interview:

S.No.	C# Interview Programs
1	Reverse a Number in C#
2	Reverse a string in C#
3	FizzBuzz in C#
4	Program to find Factor of a number in C#
5	Program to Swap two numbers in C#
6	Program to find the occurrence of the character in a string in C#
7	Program to find factorial of a number in C#
8	Program to check a string is Palindrome in C#
9	Program to check a number is Palindrome in C#
10	Program to find the HCF of two numbers in C#
11	Program to generate Floyd’s Triangle in C#
12	Program to Count Vowels and Consonants in a string in C#
13	Program to check whether the entered year is Leap Year or Not in C#
14	Program to remove the duplicate character from the string

I hope these programs will help you in cracking your interview.

Thanks

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Program to find Factor of a number in C#

Write a program to find the Factor of a number entered by the user. 

The basic approach to solve this problem is to find the number(s) (Factors) which can divide the number entered by the user with no remainder left i.e. 0. In simple words, a factor divides a number completely without leaving any remainder.

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Working up with Google Kubernetes Engine in Google Cloud Platform

In this article, we will learn How to get started with GKE i.e. Google Kubernetes Engine in Google Cloud Platform. GKE provides the easiest and simplest way to set up the Kubernetes cluster. Kubernetes (K8s) is an Open Source system for automating deployment, scaling, and management of the containerized applications.

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Getting Started with Cloud SQL in Google Cloud Platform

In this article, we will learn How to get started with Cloud SQL in Google Cloud Platform. We will start with the creation of a VM Instance. Then we create a MySQL DB in the Cloud SQL and access that DB in the Web application hosted in the VM Instance created in the Google Cloud Platform. 

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Create a storage bucket in Google Cloud Platform

In this article, we will learn How to create a storage bucket in the Google Cloud Platform and access the files stored in the Storage Bucket in Web Application hosted in VM instance of the Google Cloud Platform. 

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