Welcome to the Java Programming Forums
The professional, friendly Java community. 21,500 members and growing!
The Java Programming Forums are a community of Java programmers from all around the World. Our members have a wide range of skills and they all have one thing in common: A passion to learn and code Java. We invite beginner Java programmers right through to Java professionals to post here and share your knowledge. Become a part of the community, help others, expand your knowledge of Java and enjoy talking with like minded people. Registration is quick and best of all free. We look forward to meeting you.
>> REGISTER NOW TO START POSTING
Members have full access to the forums. Advertisements are removed for registered users.
LinkBack URL
About LinkBacks
boolean for increment method
Hello my original attempted was to make increment method in the class. But my teacher want it to be in boolean instead of void
so it going to being something like this, but i am not very familiar with boolean. Anyone please point out a way to improve this. Thank you.public void increment() { if (count < maxValue) count++; else System.out.println("Counter overflow. Increment ignored."); };
public boolean increment() { return true; };
Re: boolean for increment method
Booleans aren't that hard to understand: they're either true or false, on or off, yes or no, etc.
What it sounds like your teacher wants you to do is modify the first method to return true or false to indicate if the increment succeeded.
A good way to think about booleans is to phrase a true/false question:
The increment method succeeded in increasing count's value. True or false?
The increment method failed to increase count's value. True or false?
Depending on which of these two questions you want to answer your method's return value will mean something different. From what you've posted it isn't clear which your teacher wants, though I have a tendency to lean towards the first because that's the approach usually taken.
You just need to modify your first method to properly answer this question without using System.out. This is console output, different from returning a value from a method.
Re: boolean for increment method
This is what i came up with. It run but it doesn't say anything if it false.
public boolean increment() { if (count < maxValue) { count++; return true; } else //System.out.println("Increment ignored."); return false; };
Re: boolean for increment method
Normally the intent is for a method to perform work and return a result. The calling method will then decide what it wants to do with that result. This could be perform more computations, write it to a file, print out a message to the console, etc.
I don't have your assignment so I'm not positive if that's what your teacher wants, but if I had to guess that is what I would do. It's best to read the assignment or check with a member of the teaching staff to ensure you have an acceptable solution.
Re: boolean for increment method
The problem here is there not actually an assignment. He just gave everyone the skeleton of the program, and expect the result. So I don't know what really to doOriginally Posted by helloworld922
. Well if there a better way to put that code please help me out, or the edit one be ok?
Re: boolean for increment method
You're guess is as good as mine. My suggestion is to ask other students for what they did, and/or ask your teacher (the teacher is the best option because they most likely know what they want).
That aside, if I were the teacher I would say your modified code is close to matching what I would consider to be good programming practice, the only things I can tell that are missing are comments.
Re: boolean for increment method
thank you very much.
Reply With Quote
Related threads: