Question

whats the answers

For the following code, indicate how many times the loop body will execute for the following input values: 2 1 0? userNum - 3 while (userNum > 0) { // Do something // Get user um from input } 3

Answer 1

1)
inner for loop is for (col=o, colc3; col=colt) l/body 3. i) body executes because oc3. colzo and colsot! =) is) col=1 condition (10) is towe. so, body executes. and colelt = 2 col=2 condition (243) is true. so, body executes. and col=2+1 -3 Now; condition (343) is false. Hence, loop executed for 3 times. pst option) 3 times 3 at row=2; condition (2<=3) is true So, inner for loop colão, condition is true print 20. coleot, condition is true. print (21) cola 2 condition is false

exit from inner for bop Now, dow=2 to =3 condition ( 34 3) is true so, enter to inner inner for loop. colzo - Condition is bue print 30 Colccolti = 1 Colel - condition is tore print 31 : Output is displayed as 20 21 30 31 3rd option

4) 1st option is correct.

Because, incremental programming means, if any data in the code changes, we have to change the output only which effect due to the change in data. But, entire code should not be changed.

So, by doing this, only some part of code is effected. So, errors may get reduced. So, experts should use this approach.

In other options, a good programmer must check for errors while developing the code rather than after completing the code. Fixme comment means the code have errors and is incorrect. So, we should not expect any fixme comment.

Hence, 1st option is the correct one.

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