41319990_Assignment02_Semester02

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4131-999-0 Assignment 02 Semester 02

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Question 01

1 2

3

procedure TForm1.btnSummarizeClick(Sender: TObject);

var

x : Integer;

begin

lblVenue.Caption := 'The match was placed at ' + rgpStadium.Items.Strings[rgpStadium.ItemIndex];

x := StrToInt(sedScore1.Text) + StrToInt(sedScore2.Text);

case x of

0: form1.Color := clBlue;

1,3: form1.Color := clYellow;

2: form1.Color := clGreen;

4,5,6,7,8,9,10: form1.Color := clRed;

else begin

form1.Color := clPurple;

end;

end;

end;


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4

procedure TForm1.bmbResetClick(Sender: TObject);

begin

form1.Color := clScrollBar;

edtTeamName1.Text := '';

edtTeamName2.Text := '';

lblResults.Caption := 'No Results' ;

lblVenue.Caption := 'No Results';

sedScore1.Text := '0';

sedScore2.Text := '0';

rgpStadium.ItemIndex := 0;

end;

5

If is a conditional statement which perform different computation or action depending on whether a

programmer-specified Boolean condition evaluates true or false

IfX > 100 then begin

Y := 20;

IfX > 200 then begin

Y := 40

GetTotal(Y);

end;

end;

A case statement is a type of selection control statement. Its purpose is to allow the value of the

variable or expression to control the flow of the program execution.

case Amount of

0 : Fine := 0;

10: Fine := 20;

15: Fine := 50;

else begin

Fine := GoToCourt;

JailTime := GetSentence;

end;

end;


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6 case statements are a more structured way than multiple ifstatements to express conditional logic

and are easier to read

7 ifstatement can be used when dealing more than one types or variables when case only handles

integral quantities.

Question 02

1. For loop is used when the number of iteration is known before entering the loop. And the loopexecutes for the given values of the loop variable.

2. While loop is suitable when a programmer wants to allow code to execute repeatedly based ona given Boolean condition

3. Yes it can be converted, but according to the following exampleFor Loop:

For 0 to 5 do

doSomething();

While Loop:

Var

X : Integer

Begin

X := 0;

While X < 5 do

doSomething();

from the above a for loop simplifies the while loop;

4. The requirements of a for loop is to have an initial value and an end value5. Looping is required when more data is to be captured, or perform certain actions until a

condition is met.

6. An infinite while loop is when code executes nonstop repeatedly without any terminatingcondition, or condition is not met.


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7.procedure TformBuyTickets.btnAddNamesClick(Sender: TObject);

begin

if lstStadiums.Items.Count < 5 then

lstStadiums.Items.Add(inputBox('FIFA Stadiums', 'Please enter the name of the stadium',''));

if lstStadiums.Items.Count > 0 then

begin

btnBuyFOR.Enabled := true;

btnBuyWHILE.Enabled := true;

end;

end;

8.procedure TformBuyTickets.btnBuyFORClick(Sender: TObject);

var i,rand,total : Integer;

begin

lstCost.Items.Clear();

for i :=0 to (lstStadiums.Items.Count - 1) do

begin

rand := Random(400);

lstCost.Items.Add(lstStadiums.Items.Strings[i] +

' Stadium ticket costs R ' + IntToStr(rand));

total := total + rand;

end;

lstCost.Items.Add('TOTAL COST R ' + IntToStr(total));

end;


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Question 03

1. This application received input of soccer teams competing on a tournament. The teams whichwin on each group the program will automatically determine which team will compete for the

1st

position and the losing teams compete for the 3rd

position. After the tournament it displays

the most number of scored goals and minimum scored goals, including the total number of

scored goals.

2.

3.


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4.procedure TForm1.btnNextRoundClick(Sender: TObject);

begin

{Group A Scores}

if Round1grpATeam1Score.Value > Round1grpATeam2Score.Value then

begin

Round2grpATeam1.Caption := Round1grpATeam1.Text;

Round2grpBTeam1.Caption := Round1grpATeam2.Text;

end;

if Round1grpATeam1Score.Value < Round1grpATeam2Score.Value then

begin

Round2grpATeam1.Caption := Round1grpATeam2.Text;

Round2grpBTeam1.Caption := Round1grpATeam1.Text;

end;

{Group B Scores}

if Round1grpBTeam1Score.Value > Round1grpBTeam2Score.Value then

begin

Round2grpATeam2.Caption := Round1grpBTeam1.Text;

Round2grpBTeam2.Caption := Round1grpBTeam2.Text;

end;

if Round1grpBTeam1Score.Value < Round1grpBTeam2Score.Value then

begin

Round2grpATeam2.Caption := Round1grpBTeam2.Text;

Round2grpBTeam2.Caption := Round1grpBTeam1.Text;

end;

lstScores.Items.Add(IntToStr(Round1grpATeam1Score.Value));

lstScores.Items.Add(IntToStr(Round1grpATeam2Score.Value));

lstScores.Items.Add(IntToStr(Round1grpBTeam1Score.Value));

lstScores.Items.Add(IntToStr(Round1grpBTeam2Score.Value));

end;

5.procedure TForm1.btnStatsClick(Sender: TObject);

var i, Max, Min, TotalScore : Integer;

begin

Max := StrToInt(lstScores.Items.Strings[0]);


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{Min := StrToInt(lstScores.Items.Strings[0]);}

TotalScore := 0;

for i := 0 to (lstScores.Items.Count - 1) do

begin

if( StrToInt(lstScores.Items.Strings[i]) > Max) then

Max := StrToInt(lstScores.Items.Strings[i]);

if( StrToInt(lstScores.Items.Strings[i]) < Min) then

Min := StrToInt(lstScores.Items.Strings[i]);

TotalScore := TotalScore + StrToInt(lstScores.Items.Strings[i]);

end;

lstStats.Items.Add('The Most Scored Goals is ' + IntToStr(Max));

lstStats.Items.Add('The Minimum Scored Goals is ' + IntToStr(Min));

lstStats.Items.Add('Total Goals Scored ' + IntToStr(TotalScore));

end;

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41319990_Assignment02_Semester02