A PL/I programmer wants to repeat an instruction 5 times. How can he/she code this ?

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  1. REPEAT 5 TIMES; instruction; END;

  2. DO J=1 TO 5; instruction; END;

  3. COUNTER = 1; DO WHILE COUNTER < 5; COUNTER = COUNTER + 1; instruction; END;

  4. REPEAT VARYING COUNTER FROM 1 BY 1 UNTIL COUNTER = 5; instruction; END;

Show answer
Correct Option: B
Explanation:

To repeat an instruction 5 times in PL/I, the programmer can use a loop construct.

Option A is not a valid PL/I syntax.

Option B is a correct way to repeat an instruction 5 times in PL/I. It uses a DO loop with a loop control variable J that iterates from 1 to 5, executing the instruction each time.

Option C is also a valid way to repeat an instruction 5 times in PL/I, but it uses a WHILE loop instead of a DO loop. It initializes a counter variable to 1 and repeats the instruction while the counter is less than 5.

Option D is also a valid way to repeat an instruction 5 times in PL/I, but it uses a REPEAT loop with a loop control variable COUNTER that iterates from 1 to 5, executing the instruction each time.

Therefore, the correct answer is:

The Answer is: B

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