Differences between while and do–while loops
https://www.computersprofessor.com/2016/06/differences-between-while-and-dowhile.html
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While Loop:
It is a looping construct
that will execute only it the test condition is true.
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It is an entry-controlled
loop.
It is used for implementing common looping situations.
do-while Loop:
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It is a looping construct
that will execute at least once even if test-condition is false.
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It is an exist controlled
loop.
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It is used for
implementing basic proms where the mere is required to be printed after once.
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