What is loops? What is For loop?
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The document explains loops in programming, specifically in C, detailing their purpose to execute blocks of code multiple times based on conditions. It highlights three types of loops: for, while, and do-while, with a focus on the for loop, including its syntax and control flow. Additionally, it introduces loop control statements like break, continue, and go to, which modify the normal execution sequence of loops.
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What is loops? What is For loop?
- 2. When a block of code needs to be executed several number of times. In general, statements are executed sequentially: The first statement in a function is executed first, followed by the second, and so on. A loop statement allows us to execute a statement or group of statements multiple times.
- 3. Condition Conditional Code If condition is False If condition is true
- 4. Types of loops in C-: 1. For loop 2. While loop 3. Do while loop
- 5. For loop For loop is used to execute a set of statements repeatedly until a particular condition is satisfied. We can say it is an open ended loop. Syntax: for(initialization; condition; updation) { //block of code } Example: for(i=1; i<=10; i++) { printf(“%d”,i); }
- 6. Control flow in for loop:- 1. Initialization code is evaluated. 2. Condition is checked. 3. When condition is true block of for loop statements are executed. 4. After execution of statements, updation is done, again condition is checked and so on
- 7. Let’s see an example
- 8. Control Statements Loop control statements change execution from its normal sequence. These statements forces the loop to perform the execution accordingly. 1. break 2. continue 3. go to
- 9. Let’s understand these through an example