topic interview ques1 in Application Development and Automation Discussions

interview ques1

Former Member — Thu, 14 Jun 2007 09:37:29 GMT

hi friends,...

i would like to know the ans for the following.. kindly help me

what is sy-batch?

what is diff bt check, continue ?

what is diff bt exit and stop?

what is binary search? give me defn

Re: interview ques1

Former Member — Thu, 14 Jun 2007 09:47:33 GMT

Hi,

sy-batch is used to check the program running in background.

Check statement, checks the condition with in a loop and if it satisfies the condition, the control moves to next statement in the loop. Otherwise, it terminates the loop.

Continue statement, acts like goto statement. If the condition is true, it processes the remaining statements and if the condition is false, then the control moves to the top of loop.

At-Line selection, At user-command etc..,

In at line-selection system defined fcode will be generated In at user-command we need to define the fcode and fkey manually then only it will triggers.

exit will come out of the current subroutine but then it will execute the other subroutines under the event.

stop will come out of the event itself and will not execute any subroutines in an event.

eg.

START-OF-SELECTION.

perform gf1.

perform gf2.

An exit command in form gf1 will come out of form gf1 but execute form gf2.

A stop command in form gf1 will come out of start-of-selection event and go to end-of-selection event.

When a programmer uses the read command, the table is sequentially searched. This slows down the processing. Instead of this, use the binary search addition. The binary search algorithm helps faster search of a value in an internal table. It is advisable to sort the internal table before doing a binary search. Binary search repeatedly divides the search interval in half. If the value to be searched is less than the item in the middle of the interval, the search is narrowed to the lower half, otherwise the search is narrowed to the upper half.

Hope it is useful.

Thanks,

Sandeep.

Re: interview ques1

Former Member — Thu, 14 Jun 2007 09:57:50 GMT

Hi selva..

1) Check:

If the statement CHECK is executed in a loop and logical expression is incorrect, the statement CHECK immediately terminates the current loop pass and the program continues with the next loop pass.

Continue:

The CONTINUE statement can only be used in loops. If it is used, the current loop pass is ended immediately and the program flow is continued with the next loop pass.

2) Exit:

If the EXIT statement is listed within a loop, it leaves the loop by ending the current loop process. Program execution is continued after the closing statement in the loop.

Stop:

The statement STOP is only to be used in executable programs and in the following event blocks:

• AT SELECTION-SCREEN (without additions)

• START-OF-SELECTION

• GET

You leave these event blocks via STOP, and the runtime environment triggers the event END-OF-SELECTION.

3) Sy-batch: is used to check the programm running in back

ground .

Reward points if helpful..