Question

what is nested loop in qbasic?write the syntax for FOR nested loop.

Answer 1

the nested loop means to follow or repeat the executed line

Answer 2

Answer:

Syntax of for..next in nested loop :

For (counter-variable)=start to end [STEP]             {outer loop}

For (counter-variable)=start to end[STEP]               {inner loop}

Statement[BLOCK]                                                {inner_loop}

Next (counter-variable)                                           {inner loop}            

Statement[BLOCK]                                               {outer_loop}

Next(counter-variable)                                          {outer loop}      

The variable used in the above  For …Next loop is called ‘loop control variable’.

Explanation:

loop within another loop is called 'nested loop'.

Note:outer loop begins first but ends last,whereas inner loop begins last but end first.

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16.12.2019