 1627909276

# fully understand loops in C# for beginners

Today, We are going to learn the new thing with just doing some crazy things with the C-Sharp Loops and it contains the solution for the Hackerrank Day 5 30daysofcode Challenge Solution.So, Let's Begin with understanding the three words "What","Why" and "How". In the terms of

• What are the Loops?
• Why we have to or we should have to use Loops ?
• How we can implement the Loops ?

So, Firstly the Loops is something which we can say that it is a logical statements which are executed multiple time by providing some starting and the ending number of steps.

Let' say i want some functionality like whenever i send some number to the programmer it should have to give me the table of that number as example i want the table of the 3.

So, What are the steps i am going to do.

Take input from user,

``````//imports
//namespace
//class
//main methos

/*...Now the body parts goes here...*/

//close main
//close class
close namespace``````

Multiply it with 1 and print the out put then multiply with 2 and print output and so on till the multiply it with 10 and showing the output. Still Confusing let' s see the below code snippet.

``````/*...Inside the Body Part after getting the input from user...*/\

Console.WriteLine("{0} X 1 = ",n,(n*1));
Console.WriteLine("{0} X 2 = ",n,(n*2));
Console.WriteLine("{0} X 3 = ",n,(n*3));
Console.WriteLine("{0} X 4 = ",n,(n*4));
Console.WriteLine("{0} X 5 = ",n,(n*5));
Console.WriteLine("{0} X 6 = ",n,(n*6));
Console.WriteLine("{0} X 7 = ",n,(n*7));
Console.WriteLine("{0} X 8 = ",n,(n*8));
Console.WriteLine("{0} X 9 = ",n,(n*9));
Console.WriteLine("{0} X 10 = ",n,(n*10));``````

So, As you can see on the above code snippet we can get the whole table of the user inputed number. but here thing which is going wrong is the usage of the functionality we already have .

## Buddha Community  1589796212

## C++ Tutorial - Loops In C++ [For Loop, While Loop, Do While Loop]

In this C++ Tutorials we are going to talk about Loops In C++, we are going to learn different C++ Loops like For Loop, While Loop and Do While Loop. There may be a situation, when you need to execute a block of code several number of times, using loops you can do these kind of functionalities. A loop statement allows us to execute a statement or group of statements multiple times. There are different types of loops that you can use in c++, for loop, while loop, do while loop, also there are different control statements like break and continue in c++ loops, using control statements we can change the execution of loops from its normal sequence.

#c #c# #c++ #programming-c 1624305600

## C++ Tutorial for Beginners - Full Course. DO NOT MISS!!!

This course will give you a full introduction into all of the core concepts in C++.
⭐️ Contents ⭐
⌨️ (0:00:00) Introduction
⌨️ (0:01:38) Windows Installation
⌨️ (0:04:54) Mac Installation
⌨️ (0:08:44) Setup & Hello World
⌨️ (0:12:29) Drawing a Shape
⌨️ (0:19:55) Variables
⌨️ (0:31:43) Data Types
⌨️ (0:39:15) Working With Strings
⌨️ (0:49:00) Working With Numbers
⌨️ (0:59:41) Getting User Input
⌨️ (1:05:32) Building a Calculator
⌨️ (1:09:28) Building a Mad Libs
⌨️ (1:13:45) Arrays
⌨️ (1:20:03) Functions
⌨️ (1:29:47) Return Statement
⌨️ (1:35:22) If Statements
⌨️ (1:47:15) If Statements (con’t)
⌨️ (1:55:58) Building a Better Calculator
⌨️ (2:02:20) Switch Statements
⌨️ (2:10:47) While Loops
⌨️ (2:18:53) Building a Guessing Game
⌨️ (2:29:18) For Loops
⌨️ (2:38:32) Exponent Function
⌨️ (2:45:21) 2d Arrays & Nested Loops
⌨️ (2:59:11) Pointers
⌨️ (3:13:26) Classes & Objects
⌨️ (3:25:40) Constructor Functions
⌨️ (3:34:41) Object Functions
⌨️ (3:41:43) Getters & Setters
⌨️ (3:54:04) Inheritance

Course developed by Mike Dane. Check out his YouTube channel for more great programming
📺 The video in this post was made by freeCodeCamp.org
The origin of the article: https://www.youtube.com/watch?v=vLnPwxZdW4Y&list=PLWKjhJtqVAblfum5WiQblKPwIbqYXkDoC&index=10
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Thanks for visiting and watching! Please don’t forget to leave a like, comment and share!

#c++ #c++ tutorial #c++ tutorial for beginners #c++ tutorial for beginners - full course #core concepts in c++. 1590587580

## Loops in C++ | For, While, and Do While Loops in C++

In this Video We are going to see how to use Loops in C++. We will see How to use For, While, and Do While Loops in C++.
C++ is general purpose, compiled, object-oriented programming language and its concepts served as the basis for several other languages such as Java, Python, Ruby, Perl etc.

#c #c# #c++ #programming-c 1599201978

## For loop in C++ Program | C++ For Loop Example

For loop in C++ Program | C++ For Loop Example is today’s topic. For understanding for loop, we must have prior knowledge of loops in C++. Loops are used when we want a particular piece of code to run multiple times. We use loops to execute the statement of codes repeatedly until a specific condition is satisfied. It eases the work of the programmer and also shortens the code length.

### For loop in C++ Program

For example, if we want to print numbers from 1 to 1000, then if we don’t use loops, we have to write 1000 different print statements for printing numbers from 1 to 1000. With the help of loops, we can write this code in 2 lines. We need to run the loop and give iteration conditions.

There are 3 types of loops for loopwhile loop and do-while loop. In this tutorial, we will learn about for loop.

A for loop is the repetition control structure that is generally used to write a code more efficiently which is supposed to be executed a specific number of times.

#c++ #for loop #while loop #do-while loop 1597737600

## Types of Loops in C and C++? - DZone IoT

Loops in a programming language is a piece of code that get executed repeatedly until the specified condition becomes false. A loop consists of two parts, a block of statements and a condition that control the loop.

Loops mainly consisted of three statements – initialization condition, test condition, update condition.

For example, if we want to print “Hello Codies” 5 times, we can do this in two ways. Writing the statement 5 times (#1) or use loops which save time and effort (#2).

Java

1

``````#1
``````

2

3

``````#include <stdio.h>
``````

4

``````int main()
``````

5

``````{
``````

6

``````     printf("Hello Codies\n");
``````

7

``````     printf("Hello Codies\n");
``````

8

``````     printf("Hello Codies\n");
``````

9

``````     printf("Hello Codies\n");
``````

10

``````     printf("Hello Codies\n");
``````

11

12

``````    return 0;
``````

13

``````}
``````

Java

1

``````#2
``````

2

3

``````#include <stdio.h>
``````

4

5

``````int main()
``````

6

``````{
``````

7

``````  int i;
``````

8

9

``````    // Writing a for loop
``````

10

``````    // to print Hello Codies 5 times
``````

11

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``````    for (i = 1; i <= 5; i++) {
``````

13

``````        printf("Hello Codies\n");
``````

14

``````    }
``````

15

``````    return 0;
``````

16

``````}
``````

Output:

Java

1

``````Hello Codies
``````

2

``````Hello Codies
``````

3

``````Hello Codies
``````

4

``````Hello Codies
``````

5

``````Hello Codies
``````

In this tutorial, you will learn-

1. Types of Loops
2. While Loop
3. Do-While loop
4. For loop
5. Nested loop
6. Break Statement
7. Continue Statement

### Types of Loops in C/C++

Loops are classified into two types depending upon the position control statements:

• Entry controlled loop
• Exit controlled loop

Entry controlled loop: A conditional statement is evaluated before executing the body of a loop. It is also called as a pre-checking or Counter controlled loops where the programmer already know how many times the loop get executed. Counter controlled loops are often called definite iteration because the number of repetitions is known before the loop begins execution.

Exit controlled loop: In this type of loops conditional statement are evaluated after executing the loop body once irrespective of whether the test condition is true or false. It is also called as a post-checking or Sentinel controlled Loop because the programmer don’t know exactly know how many times loop will be executed. Sentinel-controlled loop also known as indefinite repetition.

The control conditions must be specified properly otherwise the loop will execute infinite number of times (infinite loop). An infinite loop occurs when no termination condition is specified or specified conditions never meet.

programming language provides us with 3 types of loop and C++ has 4th extra loop:

• while loop
• do-while loop
• for loop
• Nested Loop (only in C++)

The syntax of these loops mainly differs in the placement of these three statements initialization condition, test condition, update condition.

#### While Loop in C/C++

The while loop specify that a program should repeat set of instruction inside the block till the condition remains true. While loop used in place where we don’t know number of iteration before and it depends on the update inside the block. While loop is Entry Controlled loop and widely used in C/C++.

Syntax of WHILE Loop:

Java

1

``````initialization condition;
``````

2

``````while (test_ condition)
``````

3

``````{
``````

4

``````   // statements
``````

5

6

``````  update_ condition;
``````

7

``````}
``````
##### Flow Chart of While loop.

In While loop, condition evaluated first if condition is TRUE than block of statements get executed and update condition then control again goes back at the beginning, and the condition is checked again if it is true, the same process is executed until the given condition becomes false. Once the test condition results FALSE control goes back to main program. While Loop is Entry-Controlled Loop.

Note: If Loop contains only one statement, then the curly braces are not compulsory. Though It is a good practice to include braces.

Following program illustrates a while loop:

Java

1

``````#include<stdio.h>
``````

2

3

``````int main()
``````

4

``````{
``````

5

``````  int num=1;    //initializing the variable
``````

6

7

``````     while(num<=5)            //while loop with test condition
``````

8

``````    {
``````

9

``````       printf("%d ",num);
``````

10

``````       num++;        //incrementing (update condition)
``````

11

``````    }
``````

12

``````    return 0;
``````

13

``````}
``````

Output:

Java

1

``````1 2 3 4 5
``````

The above program prints series of numbers from 1 to 5 using a while loop.

Let’s see what happening in above program step by step.

Step 1: We have initialized variable ‘num = 1’.

Step 2: In while condition we are evaluating is ‘num’ value is less than or equal to 5, if ‘num’ becomes greater than 5 than this condition become False.

Step 3: For now ‘num = 1’, we enter the loop comparing 1 <= 5 which result true so the body of loop i.e. ‘num’ value 1 got printed.

Step 4: In this step ‘num’ value increased by 1 i.e now ‘num = 2’.

Now step 3 get repeated again with ‘num = 2’ and print the ‘num’ value 2, similarly 3,4,5. When ‘num’ got increase to 6 (num =6) while condition become FALSE & loop terminated than control goes back to main() function as there is nothing after loop do program exits with returning 0 indicating that everything went well.

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