Comparison/Contrast of 'for' and 'while' loops

[Naveen Kumar Srivastava]

Help me
Which one is better for loop or while loop and why

[sicarie]

Help me
Which one is better for loop or while loop and why

That depends on what you are trying to do.

Maybe this will help?

[smalpani]

That depends on what you are trying to do.

Maybe this will help?

i dont think in general one loop will be faster than other.

Generally a for loop is used when you want to iterate over a variable.

That is clear from its own format

for (assign;check;increment)

although you are free to do anything during assign , check or continue

so you will use for loop for doing things like

for (x=z;x!=z;x++)
{
}


And while is used for things like

while(this_condition_is_true)


there is no restriction on wither loops, use what comforts you

[weaknessforcats]

You only need to decide:


Does the loop have to go at least once??

If so, use a do loop.
If not, use a while or for loop.