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C++ If statements in a do while loop with a yes or no ending
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up vote
9
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favorite
I am new to coding and I'm trying to do a long do while loop with nested if statements but I'm having issues with getting my loop to actually loop.
Instead of getting help directly on my project, which has a very long code, I made a simple kind of like it version. It also does not loop. It will get to the end and ask the user if they want to try again but when "y" is entered it ignores the if statements.
#include <iostream>
#include <string>
using namespace std;
int main()
I thought maybe I needed a do loop in the do loop around the if statements but then I didn't know how to go about it. Any help would be appreciated. I have spent many, many hours trying to figure it out.
I tried to ask my teacher, but my college teaches from some generic curriculum that their dean wrote based on her book. He is not very enthusiastic about helping or teaching.
Which brings me to a second off topic question. I have been basically learning coding on my own through online tutorials, do I have to have the degree to get a good job, or do certificates count? (I have a bachelors in Business Management).
c++ if-statement do-while
edited 1 hour ago
FredMaggiowski
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
9
down vote
favorite
I am new to coding and I'm trying to do a long do while loop with nested if statements but I'm having issues with getting my loop to actually loop.
Instead of getting help directly on my project, which has a very long code, I made a simple kind of like it version. It also does not loop. It will get to the end and ask the user if they want to try again but when "y" is entered it ignores the if statements.
#include <iostream>
#include <string>
using namespace std;
int main()
I thought maybe I needed a do loop in the do loop around the if statements but then I didn't know how to go about it. Any help would be appreciated. I have spent many, many hours trying to figure it out.
I tried to ask my teacher, but my college teaches from some generic curriculum that their dean wrote based on her book. He is not very enthusiastic about helping or teaching.
Which brings me to a second off topic question. I have been basically learning coding on my own through online tutorials, do I have to have the degree to get a good job, or do certificates count? (I have a bachelors in Business Management).
c++ if-statement do-while
edited 1 hour ago
FredMaggiowski
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
6
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago
add a comment |Â
up vote
9
down vote
favorite
up vote
9
down vote
favorite
I am new to coding and I'm trying to do a long do while loop with nested if statements but I'm having issues with getting my loop to actually loop.
Instead of getting help directly on my project, which has a very long code, I made a simple kind of like it version. It also does not loop. It will get to the end and ask the user if they want to try again but when "y" is entered it ignores the if statements.
#include <iostream>
#include <string>
using namespace std;
int main()
I thought maybe I needed a do loop in the do loop around the if statements but then I didn't know how to go about it. Any help would be appreciated. I have spent many, many hours trying to figure it out.
I tried to ask my teacher, but my college teaches from some generic curriculum that their dean wrote based on her book. He is not very enthusiastic about helping or teaching.
Which brings me to a second off topic question. I have been basically learning coding on my own through online tutorials, do I have to have the degree to get a good job, or do certificates count? (I have a bachelors in Business Management).
c++ if-statement do-while
edited 1 hour ago
FredMaggiowski
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am new to coding and I'm trying to do a long do while loop with nested if statements but I'm having issues with getting my loop to actually loop.
Instead of getting help directly on my project, which has a very long code, I made a simple kind of like it version. It also does not loop. It will get to the end and ask the user if they want to try again but when "y" is entered it ignores the if statements.
#include <iostream>
#include <string>
using namespace std;
int main()
I thought maybe I needed a do loop in the do loop around the if statements but then I didn't know how to go about it. Any help would be appreciated. I have spent many, many hours trying to figure it out.
I tried to ask my teacher, but my college teaches from some generic curriculum that their dean wrote based on her book. He is not very enthusiastic about helping or teaching.
Which brings me to a second off topic question. I have been basically learning coding on my own through online tutorials, do I have to have the degree to get a good job, or do certificates count? (I have a bachelors in Business Management).
c++ if-statement do-while
c++ if-statement do-while
edited 1 hour ago
FredMaggiowski
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
FredMaggiowski
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
FredMaggiowski
1,73021332
edited 1 hour ago
FredMaggiowski
1,73021332
edited 1 hour ago
FredMaggiowski
1,73021332
1,73021332
asked 1 hour ago
JKisa
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
JKisa
462
asked 1 hour ago
JKisa
462
462
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
JKisa is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
6
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago
add a comment |Â
6
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago
6
6
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago
add a comment |Â
3 Answers
3
active
oldest
votes
up vote
3
down vote
With
cin >> answer;
you read exactly one character. The problem is that you entered at least two characters when writing the answer. The actual 'y' or 'n' plus the Enter key, which is added as a newline in the input buffer.
This newline is then read by the next getline call as an empty line.
There are a few solutions to this problem, for example using ignore after reading into answer. Or if you want only one-word inputs then you could use formatted input using >> for sodaChoice too, since it will by default skip leading white-space (like newlines).
answered 1 hour ago
Some programmer dude
285k24233391
add a comment |Â
up vote
2
down vote
Existing answers are correct in the case of the user behaving nicely and entering just a 'y' or an 'n' followed by a newline.
We can add a little safety with a modification to the .ignore() call by asking it to ignore all characters up to an including the next newline:
You will need to add this header include at the top of your translation unit:
#include <limits>
And you'll need to add this line before cin >> answer:
// consumes and ignores as many characters as necessary until a newline.
// The newline is also consumed.
cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n');
Full program with test inputs here:
http://coliru.stacked-crooked.com/a/996e77559590ad6d
Unfortunately, it's not unusual for Computer Science teachers to know nothing about computer science. Don't worry about this or let it put you off learning how to write software - it's just a symptom of the fact that good software engineers get paid a lot more than good teachers.
Here is some useful reference material: https://en.cppreference.com/w/cpp/io/basic_istream/ignore
answered 1 hour ago
Richard Hodges
54.5k55698
add a comment |Â
up vote
0
down vote
Since you are taking input from the user of type char but every Enter key hit, it assigns the newline (n) to the variable answer.
You can ignore this by adding a line just after the input line
cin.ignore();
You may read this for more details.
answered 1 hour ago
Shravan40
4,02221531
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
With
cin >> answer;
you read exactly one character. The problem is that you entered at least two characters when writing the answer. The actual 'y' or 'n' plus the Enter key, which is added as a newline in the input buffer.
This newline is then read by the next getline call as an empty line.
There are a few solutions to this problem, for example using ignore after reading into answer. Or if you want only one-word inputs then you could use formatted input using >> for sodaChoice too, since it will by default skip leading white-space (like newlines).
answered 1 hour ago
Some programmer dude
285k24233391
add a comment |Â
up vote
3
down vote
With
cin >> answer;
you read exactly one character. The problem is that you entered at least two characters when writing the answer. The actual 'y' or 'n' plus the Enter key, which is added as a newline in the input buffer.
This newline is then read by the next getline call as an empty line.
There are a few solutions to this problem, for example using ignore after reading into answer. Or if you want only one-word inputs then you could use formatted input using >> for sodaChoice too, since it will by default skip leading white-space (like newlines).
answered 1 hour ago
Some programmer dude
285k24233391
add a comment |Â
up vote
3
down vote
up vote
3
down vote
With
cin >> answer;
you read exactly one character. The problem is that you entered at least two characters when writing the answer. The actual 'y' or 'n' plus the Enter key, which is added as a newline in the input buffer.
This newline is then read by the next getline call as an empty line.
There are a few solutions to this problem, for example using ignore after reading into answer. Or if you want only one-word inputs then you could use formatted input using >> for sodaChoice too, since it will by default skip leading white-space (like newlines).
answered 1 hour ago
Some programmer dude
285k24233391
With
cin >> answer;
you read exactly one character. The problem is that you entered at least two characters when writing the answer. The actual 'y' or 'n' plus the Enter key, which is added as a newline in the input buffer.
This newline is then read by the next getline call as an empty line.
There are a few solutions to this problem, for example using ignore after reading into answer. Or if you want only one-word inputs then you could use formatted input using >> for sodaChoice too, since it will by default skip leading white-space (like newlines).
answered 1 hour ago
Some programmer dude
285k24233391
edited 1 hour ago
answered 1 hour ago
Some programmer dude
285k24233391
answered 1 hour ago
Some programmer dude
285k24233391
answered 1 hour ago
Some programmer dude
285k24233391
285k24233391
add a comment |Â
add a comment |Â
up vote
2
down vote
Existing answers are correct in the case of the user behaving nicely and entering just a 'y' or an 'n' followed by a newline.
We can add a little safety with a modification to the .ignore() call by asking it to ignore all characters up to an including the next newline:
You will need to add this header include at the top of your translation unit:
#include <limits>
And you'll need to add this line before cin >> answer:
// consumes and ignores as many characters as necessary until a newline.
// The newline is also consumed.
cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n');
Full program with test inputs here:
http://coliru.stacked-crooked.com/a/996e77559590ad6d
Unfortunately, it's not unusual for Computer Science teachers to know nothing about computer science. Don't worry about this or let it put you off learning how to write software - it's just a symptom of the fact that good software engineers get paid a lot more than good teachers.
Here is some useful reference material: https://en.cppreference.com/w/cpp/io/basic_istream/ignore
answered 1 hour ago
Richard Hodges
54.5k55698
add a comment |Â
up vote
2
down vote
Existing answers are correct in the case of the user behaving nicely and entering just a 'y' or an 'n' followed by a newline.
We can add a little safety with a modification to the .ignore() call by asking it to ignore all characters up to an including the next newline:
You will need to add this header include at the top of your translation unit:
#include <limits>
And you'll need to add this line before cin >> answer:
// consumes and ignores as many characters as necessary until a newline.
// The newline is also consumed.
cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n');
Full program with test inputs here:
http://coliru.stacked-crooked.com/a/996e77559590ad6d
Unfortunately, it's not unusual for Computer Science teachers to know nothing about computer science. Don't worry about this or let it put you off learning how to write software - it's just a symptom of the fact that good software engineers get paid a lot more than good teachers.
Here is some useful reference material: https://en.cppreference.com/w/cpp/io/basic_istream/ignore
answered 1 hour ago
Richard Hodges
54.5k55698
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Existing answers are correct in the case of the user behaving nicely and entering just a 'y' or an 'n' followed by a newline.
We can add a little safety with a modification to the .ignore() call by asking it to ignore all characters up to an including the next newline:
You will need to add this header include at the top of your translation unit:
#include <limits>
And you'll need to add this line before cin >> answer:
// consumes and ignores as many characters as necessary until a newline.
// The newline is also consumed.
cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n');
Full program with test inputs here:
http://coliru.stacked-crooked.com/a/996e77559590ad6d
Unfortunately, it's not unusual for Computer Science teachers to know nothing about computer science. Don't worry about this or let it put you off learning how to write software - it's just a symptom of the fact that good software engineers get paid a lot more than good teachers.
Here is some useful reference material: https://en.cppreference.com/w/cpp/io/basic_istream/ignore
answered 1 hour ago
Richard Hodges
54.5k55698
Existing answers are correct in the case of the user behaving nicely and entering just a 'y' or an 'n' followed by a newline.
We can add a little safety with a modification to the .ignore() call by asking it to ignore all characters up to an including the next newline:
You will need to add this header include at the top of your translation unit:
#include <limits>
And you'll need to add this line before cin >> answer:
// consumes and ignores as many characters as necessary until a newline.
// The newline is also consumed.
cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n');
Full program with test inputs here:
http://coliru.stacked-crooked.com/a/996e77559590ad6d
Unfortunately, it's not unusual for Computer Science teachers to know nothing about computer science. Don't worry about this or let it put you off learning how to write software - it's just a symptom of the fact that good software engineers get paid a lot more than good teachers.
Here is some useful reference material: https://en.cppreference.com/w/cpp/io/basic_istream/ignore
answered 1 hour ago
Richard Hodges
54.5k55698
answered 1 hour ago
Richard Hodges
54.5k55698
answered 1 hour ago
Richard Hodges
54.5k55698
answered 1 hour ago
Richard Hodges
54.5k55698
54.5k55698
add a comment |Â
add a comment |Â
up vote
0
down vote
Since you are taking input from the user of type char but every Enter key hit, it assigns the newline (n) to the variable answer.
You can ignore this by adding a line just after the input line
cin.ignore();
You may read this for more details.
answered 1 hour ago
Shravan40
4,02221531
add a comment |Â
up vote
0
down vote
Since you are taking input from the user of type char but every Enter key hit, it assigns the newline (n) to the variable answer.
You can ignore this by adding a line just after the input line
cin.ignore();
You may read this for more details.
answered 1 hour ago
Shravan40
4,02221531
add a comment |Â
up vote
0
down vote
up vote
0
down vote
Since you are taking input from the user of type char but every Enter key hit, it assigns the newline (n) to the variable answer.
You can ignore this by adding a line just after the input line
cin.ignore();
You may read this for more details.
answered 1 hour ago
Shravan40
4,02221531
Since you are taking input from the user of type char but every Enter key hit, it assigns the newline (n) to the variable answer.
You can ignore this by adding a line just after the input line
cin.ignore();
You may read this for more details.
answered 1 hour ago
Shravan40
4,02221531
answered 1 hour ago
Shravan40
4,02221531
answered 1 hour ago
Shravan40
4,02221531
answered 1 hour ago
Shravan40
4,02221531
4,02221531
add a comment |Â
add a comment |Â
JKisa is a new contributor. Be nice, and check out our Code of Conduct.
JKisa is a new contributor. Be nice, and check out our Code of Conduct.
JKisa is a new contributor. Be nice, and check out our Code of Conduct.
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6
Well done and thank you for composing a MCVE. Crucial skill in dev and crucial on SO!
– Lightness Races in Orbit
1 hour ago
Although please remove the second, off-topic question :P
– Lightness Races in Orbit
1 hour ago