In any programming language including C, loops are used to execute a set of statements repeatedly until a particular condition is satisfied. In computer programming, loops are used to repeat a block of code. Consider your daily routine, you wake up, you brush, you wear clothes and then head off to work, come back, eat and then sleep off. How it Works. Note: In Exit Controlled Loops, loop body will be evaluated for at-least one time as the testing condition is present at the end of loop body. Loops are very basic and very useful programming facility that facilitates programmer to execute any block of code lines repeatedly and can be controlled as per conditions added by … A for loop is used to execute statements, once for each item in the sequence. The sequence could be a list, a Dictionary, a set or a string. Programmers use loops to cycle through values, add sums of numbers, repeat functions , and many other things. C For loop is one of the most used loops in any programming language. Looping is a core concept in programming. Let’s say i want you to count to 100 and i told you that you can add 1 to the previous number and you have to start from 1. For example, let's say we want to show a message 100 times. In order to understand what loops are, we have to look at some real life cases of loops. That was just a simple example; we can achieve much more efficiency and sophistication in our programs by making effective use of loops. Note: python relies on indentation, other programming languages use curly brackets for loops. Then instead of writing the print statement 100 times, we can use a loop. Two Ways To Implement Loops. Loops are an essential part of any program and becoming a programmer is mostly a matter of mastering the idea of controlled repetition. So, the two ways you can use a loop are: Repeating a block of statements with a specified and previously defined number of iterations to be completed. You can repeat the statements in a loop structure until a condition is True, until a condition is False, a specified number of times, or once for each element in a collection.. The syntax of the For Loop in C Programming is as follows: What Is ‘for’ Loop and ‘while’ Loop . Loops help in NOT writing the same code again and again, if you want something to happen again and again. The For loop in C Programming is used to repeat a block of statements for a given number of times until the given condition is False. The Wolfram Language provides powerful primitives for specifying and controlling looping, not only in traditional procedural programming, but also in other, more modern and streamlined programming paradigms. There are usually a number of different types of loops included in programming languages including for loops, while loops and do….while loops. It is sad that most programmers only know the forms of loops provided by one or at most two languages because they have a life and structure that doesn't depend on language. Loops are a fundamental concept in programming. In this article. GeeksforGeeks GeeksforGeeks GeeksforGeeks GeeksforGeeks Exit Controlled Loops: The loops in which the testing condition is present at the end of loop body are termed as Exit Controlled Loops.do-while is an exit controlled loop. Visual Basic loop structures allow you to run one or more lines of code repetitively. Let us see the syntax of the for loop in C Programming: For loop in C Syntax. 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