- C++ Basics
Conditional Statements in C or if Statements; What is Control Statements?Explain; Write A C Program To Verify is A Number is Divisible By 3 & 5 Or Not. Jump Statements in c or Goto statement; Write A C Menu Driven Program; Iteration Statements or Loops in C; Write C program exit function. Just about every theorem in mathematics takes on the form “if, then” (the conditional) or “iff” (short for if and only if – the biconditional). Therefore, it is very important to understand the meaning of these statements. In this guide, we will look at the truth table for each and why it comes out the. https://millionairekeen734.weebly.com/crazy-chef-cooking-game-free-download.html. C Questions Answers about C conditional statments. Test your knowledge of C language conditional statements PartI.
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There may be a situation, when you need to execute a block of code 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.
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Programming languages provide various control structures that allow for more complicated execution paths.
https://millionairekeen734.weebly.com/cooking-tutorials-download.html. A loop statement allows us to execute a statement or group of statements multiple times and following is the general from of a loop statement in most of the programming languages −
C++ programming language provides the following type of loops to handle looping requirements.
Sr.No | Loop Type & Description |
---|---|
1 | while loop Repeats a statement or group of statements while a given condition is true. It tests the condition before executing the loop body. |
2 | for loop Execute a sequence of statements multiple times and abbreviates the code that manages the loop variable. |
3 | do..while loop Like a ‘while’ statement, except that it tests the condition at the end of the loop body. |
4 | nested loops You can use one or more loop inside any another ‘while’, ‘for’ or ‘do.while’ loop. |
Loop Control Statements
Loop control statements change execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed.
C++ supports the following control statements.
Sr.No | Control Statement & Description |
---|---|
1 | break statement Terminates the loop or switch statement and transfers execution to the statement immediately following the loop or switch. |
2 | continue statement Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating. |
3 | goto statement Transfers control to the labeled statement. Though it is not advised to use goto statement in your program. |
The Infinite Loop
A loop becomes infinite loop if a condition never becomes false. The for loop is traditionally used for this purpose. Since none of the three expressions that form the ‘for’ loop are required, you can make an endless loop by leaving the conditional expression empty. https://millionairekeen734.weebly.com/pre-3-auto-tune.html.
When the conditional expression is absent, it is assumed to be true. You may have an initialization and increment expression, but C++ programmers more commonly use the ‘for (;;)’ construct to signify an infinite loop.
NOTE − You can terminate an infinite loop by pressing Ctrl + C keys.
- C++ Basics
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An if statement can be followed by an optional else statement, which executes when the boolean expression is false.
Syntax
![Conditional statements c++ examples Conditional statements c++ examples](/uploads/1/2/6/2/126251635/354627228.jpg)
The syntax of an if..else statement in C++ is −
If the boolean expression evaluates to true, then the if block of code will be executed, otherwise else block of code will be executed.
Flow Diagram
Conditional Statement Dev C Example
Example
When the above code is compiled and executed, it produces the following result −
if..else if..else Statement
An if statement can be followed by an optional else if..else statement, which is very usefull to test various conditions using single if..else if statement.
When using if , else if , else statements there are few points to keep in mind.
- An if can have zero or one else's and it must come after any else if's.
- An if can have zero to many else if's and they must come before the else.
- Once an else if succeeds, none of he remaining else if's or else's will be tested.
Syntax
The syntax of an if..else if..else statement in C++ is −
Example
When the above code is compiled and executed, it produces the following result −