Question

This assignment is mainly to practice Selection programming structure. That is IF ... THEN ... ELSE ... END IF and  IF ... THEN ... ELSEIF ... ELSEIF .... END IF

1. Open a blank Word or Text file, save this file as: docx or yourlastname_firstname_ProgrammingSelection.txt. Then type the answer to the following questions:
2. What is the output of the following codes, consider each case indecently:

1. Case 1. Assume i = 1 and HowMuch = 0

IF i < 5 THEN

    HowMuch = HowMuch + 1

ELSEIF i = 5 THEN

    HowMuch = HowMuch - 5

ELSE

    HowMuch = HowMuch + 3

END IF

  DISPLAY HowMuch

2. Case 2. Assume i = 5 and HowMuch = 0

IF i < 5 THEN

    HowMuch = HowMuch + 1

ELSEIF i = 5 THEN

    HowMuch = HowMuch - 5

ELSE

    HowMuch = HowMuch + 3

END IF

DISPLAY HowMuch

3. Case 3. Assume i = 6 and HowMuch = 0

IF i < 5 THEN

    HowMuch = HowMuch + 1

ELSEIF i = 5 THEN

    HowMuch = HowMuch - 5

ELSE

    HowMuch = HowMuch + 3

END IF

DISPLAY HowMuch

3. Use the following selection structure to answer the next three questions:

If intNumber<= 100 Then

intNumber = intNumber * 2

ElseIf

    intNumber> 500 Then

    intNumber = intNumber * 3

End If

1. Assume intNumber initially contains 50. What value intNumber will contain after the above selection structure is executed?
2. Assume intNumber initially contains 500. What value intNumber will contain after the above selection structure is executed?
3. Assume intNumber initially contains 1000. What value intNumber will contain after the above selection structure is executed?

Answer 1

thanks for the question, here are the answers with explanation

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Case 1: When i=1 and HowMuch=0
i<5 will be True; hence HowMuch = 0+1 that is equal to 1
So it will print 1

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Case 2: When i=5 and HowMuch=0
i=5 will be True; hence howMuch = 0-5 that is equal to -5
So it will print -5

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Case 3: i=6 and HowMuch=0
Else will be True: hence HowMuch = 0+3 that is equal to 3
So it will print 3

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Assume intNumber initially contains 50.
Since intNumber is 50, the below condition will be executed
If intNumber<= 100 Then
intNumber = intNumber * 2
So intNumber = 50*2 that is equal to 100
So after the structure is executed intNumber will contain 100

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Assume intNumber initially contains 500.
neither intNumber<=100 nor intNumber >500 is meet, so the code below these two conditions wont get executed
So, intNnumber will retain the original number and will contain 500

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Assume intNumber initially contains 1000
Since intNumber is >500, the below condition will be executed
intNumber> 500 Then
intNumber = intNumber * 3
So intNumber = 1000*3 that is equal to 3000
So after the structure is executed intNumber will contain 3000

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