1. E.g.9
For to do loop
for i:=1 to 10 do
writeln(i);
While do loop
i:=1;
while i<=10 do
begin
writeln(i);
i:=i+1;
end;
Repeat until loop
i:=1;
repeat
writeln(i);
i:=i+1;
until i>10;
increase the value of i by 1

2. E.g.10
For to do loop
for i:=6 to 12 do
writeln(i*2);
While do loop
i:=6;
while i<=12 do
begin
writeln(i*2);
i:=i+1;
end;
Repeat until loop
i:=6;
repeat
writeln(i*2);
i:=i+1;
until i>12;
increase the value of i by 1

3. Ex.3
For to do loop
for a:=1 to 10 do
Begin
write(a*3,’ square is ’);
writeln(sqr(a*3))
End.

4. Ex.3
While do loop
a:=1;
while a<=10 do
begin
write(a*3, ‘square is ’);
writeln(sqr(a*3));
a:=a+1;
end;

5. Ex.3
Repeat Until loop
a:=1;
repeat
write(a*3, ‘square is’);
writeln(sqr(a*3));
a:=a+1;
until a>10;

6. Ex.4
For to do loop
for i:=1 to 5 do
begin
for j:=1 to i do
write(‘*’);
writeln;
End.

7. Ex.4
while do loop
i:=1;
while i<=5 do
begin
j:=1;
while j<=i do
write(‘*’);
j:=j+1;
end;
writeln;
i:=i+1;

8. Ex.4
repeat until loop
i:=1;
repeat
j:=1;
write(‘*’);
j:=j+1;
until j >i;
writeln;
i:=i+1;
until i>5;

9. Ex. Game Use “while. do’’ or ‘’repeat
Ex.Game Use “while..do’’ or ‘’repeat..until” to write a program which let the user guesses a number from 1 to 10 until he got the random number generated by computer. The output should be as follows. The value after “guess ->” is inputted by user.
Guess the number from 1 to 10
Guess -> 1
Guess -> 2
Guess -> 3
Good! You got the number!

10. Ex. Game Use “while. do’’ or ‘’repeat
Ex.Game Use “while..do’’ or ‘’repeat..until” to write a program which let the user guesses a number from 1 to 10 until he got the random number generated by computer. The output should be as follows. The value after “guess ->” is inputted by user.
Guess the number from 1 to 10
Guess -> 1
Guess -> 2
Guess -> 3
Good! You got the number!
repeated segment

11. Ex.Game
(while do loop)
Random a number
key <> guess N Y
write(‘Guess the number
from 1 to 10’);
Write(‘Guess ->’);
readln(guess);
writeln(‘Good!You
got the number!’);

12. Ex.Game (while do loop) Program game Var key,guess:integer; begin
randomize;
key:=random(10)+1;
writeln(‘Guess the number from 1 to 10’);
write(‘Guess ->’);
readln(guess);
while guess<>key do
end;
writeln(‘Good!’ You got the number!’);
end.
Random function

13. Ex.Game
(repeat until loop)
Random a number
writeln(‘Guess the number
from 1 to 10’);
Write(‘Guess ->’);
readln(guess);
key = guess N Y
writeln(‘Good!You
got the number!’);

14. Ex.Game (repeat until loop)
Program game;
var
key,guess:integer;
begin
randomize;
key:=random(10)+1;
repeat
writeln('Guess the number from 1 to 10');
write('Guess -> ');
readln(guess);
until key=guess;
writeln('Good! You got the number!');
end.