How do you..

[thomasb]

Use a sentinel value of "-1" to exit.

[ProgrammingFun]

You do not need to create new threads...

if input == -1
exit without doing anything else

else

do everything else

that is the pseudocode....

[thomasb]

ProgrammingFun @ Mon Jan 24, 2011 4:16 pm wrote:

You do not need to create new threads...

if input == -1
exit without doing anything else

else

do everything else

that is the pseudocode....

How would i put this in my program:


put "Welcome to converter"
var cent : int
put "Please enter the length in centimetres"
get cent
put "the length in inches is " ..
put cent * 2.54

[Tony]

Presumably the "do everything else" part will be your existing program.

[ProgrammingFun]

thomasb @ Mon Jan 24, 2011 4:49 pm wrote:

How would i put this in my program:


put "Welcome to converter"
var cent : int
put "Please enter the length in centimetres"
get cent
put "the length in inches is " ..
put cent * 2.54

Just as Tony said:

Pesudocode:

Welcome loop    Plz input length       get length    if length <= -1       Bye Bye!       exit the loop    else       calculations and output end loop

[thomasb]

so I have it working now, how can i make it only display then length when its above 0 when i enter -1 to end it still shows the length?

loop
put "Welcome to converter"
var cent : int
put "Please enter the length in centimetres"
get cent
put "the length in inches is " ..
put cent * 2.54
if cent <= -1
then
exit
else
end if

end loop

[Tony]

I think simply reading that code out loud to yourself will answer that question.

[thomasb]

Tony @ Mon Jan 24, 2011 5:42 pm wrote:

I think simply reading that code out loud to yourself will answer that question.

ive got no idea.. seems fine to me but idk what i have to change

[ProgrammingFun]

Put the following right beside you code and you will see what you are doing wrong:

ProgrammingFun @ Mon Jan 24, 2011 5:05 pm wrote:

Pesudocode:

Welcome loop    Plz input length       get length    if length <= -1       Bye Bye!       exit the loop    else       calculations and output end loop

[thomasb]

thank you I think i got it!!:

put "Welcome to converter"
loop
var lengt : int
put "Please input the length centimetres"
get lengt
if lengt <= -1
then
exit
else
put "the length in inches is " ..
put lengt * 2.54
end if

end loop

[ProgrammingFun]

thomasb @ Mon Jan 24, 2011 7:08 pm wrote:

thank you I think i got it!!:

Ur Welcome.

[Raknarg]

One thing your going to need with programming: The order always matters. if its not doing stuff at the right time, you probs just have to move the statement elsewhere.

[huskiesgoaler34]

Your bang on raknarg. I also find that a lot of beginners tend to over think how to solve their problems. I had that problem but I am getting better at planning my programs, then completing then using pseudo code or flow charts. The more experience you have, the easier the algorithm solving will be. Besides, you won't have that many logic errors to deal with anymore.