Difference Between for Loop and while Loop
The major differences between for loop and while loop in C, C++ and Java are as follows:
|
for Loop |
while Loop |
|---|---|
| Initialization may be either in the loop statement or outside the loop. | Initialization is always outside the loop. |
| Once the statement(s) is executed then increment is done. | The increment can be done before or after the execution of the statement(s). |
| It is normally used when the number of iterations is known. | It is normally used when the number of iterations is unknown. |
| Condition is a relational expression. | The condition may be an expression or non-zero value. |
| It is used when initialization and updation of conditions are simple. | It is used for complex initialization. |
| For loop is entry controlled loop. | While loop is also entry controlled loop. |
| Syntax: for ( init ; condition ; iteration ) { statement(s); } | Syntax: while ( condition ) { statement(s); } |
| The for loop is used when the number of iterations is known. | The while loop is used when the number of iterations is unknown. |
Difference between for and while loop in C, C++, Java
In C, C++, and Java, both for loop and while loop is used to repetitively execute a set of statements a specific number of times. However, there are differences in their declaration and control flow. Let’s understand the basic differences between a for loop and a while loop.
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