What is the difference between for loop and while loop with example?
What is the difference between for loop and while loop with example?
for loop: for loop provides a concise way of writing the loop structure. Unlike a while loop, a for statement consumes the initialization, condition and increment/decrement in one line thereby providing a shorter, easy to debug structure of looping.
What is the difference between for loop while loop and do-while loop?
while loop vs. while loop in C/C++…Output.
| While Loop | Do-While Loop |
|---|---|
| This is entry controlled loop. It checks condition before entering into loop | This is exit control loop. Checks condition when coming out from loop |
| The while loop may run zero or more times | Do-While may run more than one times but at least once. |
What is the difference between a for loop and a for in loop?
The for loop do have all its declaration (initialization, condition, iteration) at the top of the body of the loop. Adversely, in while loop only initialization and condition is at the top of the body of loop and iteration may be written anywhere in the body of the loop.
What is difference between while and do-while loop explain it?
The difference lies in the place where the condition is tested. The while loop tests the condition before executing any of the statements within the while loop whereas the do-while loop tests the condition after the statements have been executed within the loop.
What’s the difference between for and while loops?
If the condition is not mentioned in the ‘for’ loop, then the loop iterates infinite number of times. The initialization is done only once, and it is never repeated. The iteration statement is written at the beginning. Hence, it executes once all statements in loop have been executed.
How does the for loop in Java work?
The FOR loop works by executing the initialization statement only once at the beginning of the loop. The test expression is then checked against the program. If the text expression is false, the loop is terminated; but if the expression is true then the code inside the body is executed and then update expression is updated.
When to use an initialization statement in a while loop?
The initialization statement in the syntax of for loop executes only once at the start of the loop. Conversely, if while loop is carrying initialization statement in its syntax, then the initialization statement in the while loop will execute each time the loop iterates.
When does the condition in a while loop become true?
The while loop initially checks the condition and then executes the statements till the condition in while loop turns out to be true. The condition in while loop can be any boolean expression. When an expression returns any non-zero value, then the condition is true, and if the expression returns a zero value, the condition becomes false.