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What are the control structures in C?
Give an example each, Branching, Looping, break, continue in c programming
What are the control structures in C? Give an example each.
C provides two styles of flow
control:
- Branching
- Looping
Branching is deciding what
actions to take and looping is deciding how many times to take a certain
action. Branching: Branching is so called because the program chooses to
follow one branch or another. if statement This is the most simple form
of the branching statements.
It takes an expression in
parenthesis and an statement or block of statements. if the expression is true
then the statement or block of statements gets executed otherwise these
statements are skipped. ? : Operator The ? : operator is just like an if
... else statement except that because it is an operator you can use it within
expressions.
? : is a ternary operator in that it takes three values, this is the only ternary operator C has. switch statement: The switch statement is much like a nested if .. else statement. Its mostly a matter of preference which you use, switch statement can be slightly more efficient and easier to read. Using break keyword: If a condition is met in switch case then execution continues on into the next case clause also if it is not explicitly specified that the execution should exit the switch statement. This is achieved by using break keyword.
Try out given example Show Example What is default condition: If none of the listed conditions is met then default condition executed. Looping Loops provide a way to repeat commands and control how many times they are repeated. C provides a number of looping way. While loop the most basic loop in C is the while loop. A while statement is like a repeating if statement. Like an If statement, if the test condition is true: the statements get executed. The difference is that after the statements have been executed, the test condition is checked again. If it is still true the statements get executed again. This cycle repeats until the test condition evaluates to false. for loop for loop is similar to while, it's just written differently. for statements are often used to process lists such a range of numbers: do...while loop do ... while is just like a while loop except that the test condition is checked at the end of the loop rather than the start. This has the effect that the content of the loop are always executed at least once. break and continue statements C provides two commands to control how we loop:
? : is a ternary operator in that it takes three values, this is the only ternary operator C has. switch statement: The switch statement is much like a nested if .. else statement. Its mostly a matter of preference which you use, switch statement can be slightly more efficient and easier to read. Using break keyword: If a condition is met in switch case then execution continues on into the next case clause also if it is not explicitly specified that the execution should exit the switch statement. This is achieved by using break keyword.
Try out given example Show Example What is default condition: If none of the listed conditions is met then default condition executed. Looping Loops provide a way to repeat commands and control how many times they are repeated. C provides a number of looping way. While loop the most basic loop in C is the while loop. A while statement is like a repeating if statement. Like an If statement, if the test condition is true: the statements get executed. The difference is that after the statements have been executed, the test condition is checked again. If it is still true the statements get executed again. This cycle repeats until the test condition evaluates to false. for loop for loop is similar to while, it's just written differently. for statements are often used to process lists such a range of numbers: do...while loop do ... while is just like a while loop except that the test condition is checked at the end of the loop rather than the start. This has the effect that the content of the loop are always executed at least once. break and continue statements C provides two commands to control how we loop:
- break -- exit form loop or switch.
- continue -- skip 1 iteration of loop.