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Algorithms and Programming eXercises #9

Iteration using FOR..DO - Solutions



	
1.	
(a)	Var thing : char;
		temp : string;
	Begin
		temp := '';
		for thing := 'a' to 'z' do
			temp := temp + thing;
		showmessage(temp);
	End;

(b)	Var thing : char;
		temp : string;
	Begin
		temp := '';
		for thing := 'z' downto 'a' do
			temp := temp + thing;
		showmessage(temp)
	End;

(c)	Var counter : byte;
		temp : string;
	Begin
		temp := '';
		for counter := 1 10 15 do
			temp := temp + inttostr(counter) + ' ';
		showmessage(temp)	
	End;
	
(d)	Var counter: byte;
		temp : string;
	Begin
		temp := '';
		for counter := 1 10 15 do
			temp := temp + inttostr(counter) + ' ';
		showmessage(temp);
	End;

(e)	Var loopything : byte;
		temp : string;
	Begin
		temp := '';
		for loopything := 1 to 15 do
			temp := temp + inttostr(loopything*loopything) + ' ';
		showmessage(temp)
	End;

(f)	Var 	thing:integer;
			loop : byte;
			temp : string;
	Begin
		thing := 1024;
		temp := '';
		for loop := 1 to 11 do
			begin
				temp := temp + thing + ' ';
				thing := thing div 2
			end;
		showmessage(temp)
	End;

2.	{adds all numbers from 1 to 100}
	Var 	total : integer;
			loop : byte;
	Begin
		total := 0;
		for loop := 1 to 100 do
			total := total + loop
		showmessage('The total of all numbers from 1 to 100 is '+ inttostr(total))
	End;

3.	{adds all squares of numbers from 1 to 10}
	Var 	total : integer;
			loop : byte;
	Begin
		total := 0;
		for loop := 1 to 10 do
			total := total + loop*loop
		showmessage('The total of all the squares of numbers from 1 to 10 is '+inttostr(total))
	End;

4.	experiment with a memo box ... ask your teacher to explain their use...

  

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