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  1. Replies
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    Re: Polynomial Array List

    at first I had terms.add(null); which I thought was the problem, then I replaced it with terms.add(coeff); terms.add(expo); and after each time I used Sop(terms); and it has the same result.
  2. Replies
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    Re: Polynomial Array List

    Okay, I fixed the output loop problem, now I'm still having trouble with my insert method:



    public void insert(int coeff, int expo)
    {
    for(int i = 0; i < terms.size(); i++)
    ...
  3. Replies
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    Re: Polynomial Array List

    It does not give me a chance to put in another input.
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    Re: Polynomial Array List

    I guess it would be the input variable that controls the loop, i have:

    while(input !=null)

    but even after just one input, the input window closes and it starts printing. Maybe its the way I set...
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    Re: Polynomial Array List

    Still nothing for any variable on that line, but when I delete everything and just keep this line:

    System.out.println("insert method called for " + coeff + " " + expo);

    it prints in an...
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    Re: Polynomial Array List

    There is a println() statement at the end of the insert method that was printing earlier, but now not even that shows up. it gives me this message:

    Exception in thread "main"...
  7. Replies
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    Re: Polynomial Array List

    So here is my latest insert method:


    public void insert(int coeff, int expo)
    {
    if(terms.isEmpty())
    {
    terms.add(null);
    }
  8. Replies
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    Re: Polynomial Array List

    Okay. Sorry about that, I was getting a bit frustrated. Right now I am working on my insert method that adds terms to the list in descending order of power, I'm having trouble with the descending...
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    Re: Polynomial Array List

    As of now, the test class, this is what is has to do:


    III. The Test Class

    The main method of your test class will create a Polynomial object and then read and process a series of operations...
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    Polynomial Array List

    Here's the assignment:


    I. The Term Class

    Create a class to represent a term in an algebraic expression. As defined here, a term consists of an integer coefficient and a nonnegative integer...
  11. Thread: Bagels game

    by Pinares
    Replies
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    4,860

    Re: Bagels game

    That did it! Thanks a ton.
  12. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    Nothing happened. The code compiled and ran like it should except for that piece of code. It might as well have not been there.

    Same thing happens when I use println() to print the value of play...
  13. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    How can I check what is returned when the user clicks cancel? and that code does not work. I tried it.
  14. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    Well clicking cancel normally means the user quit. I guess that's what I was going for when I was using null. Is that right or should I be trying something different?
  15. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    before i had:

    if(userGuess == null)
    {
    //stuff
    }

    where userGuess is an int. It said "need int, found <null> incomparable types", so I added a string called play where I stored the userGuess...
  16. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    I tried if(int == null) but it says i can't compare the two. Would I have to initialize a new variable to compare?
  17. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    What reserve word do I use for when the user quits? I cannot use null in a boolean because they are incompatible types.
  18. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Re: Bagels game

    That did it. Here is my new code:


    import java.util.Random;
    import javax.swing.JOptionPane;
    //import javax.swing.JOptionPane;

    /**
    * A class to play the game of Bagels
    * @John Pinares
  19. Thread: Bagels game

    by Pinares
    Replies
    23
    Views
    4,860

    Bagels game

    I have to program a game called Bagels. This is how it is suppose to go:
    -------------------------------------------------------------------------------
    This assignment is to write an interactive...
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    Re: Combination lock

    Its because the test class does not know which input goes to which position. I'm sure I have to implement the counter into the test class. I don't know how though, like in the first input, the test...
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    Re: Combination lock

    Okay, now regardless of the input, right or wrong it gives me this message in the out put right after it prints the user input:
    "The combination to MasterLock is JAP
    The user entered combo is JAP...
  22. Replies
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    Re: Combination lock

    I actually fixed the printing problem. Now the prototype program runs fully but I still can't get the arguments in the setPosition method to match the ones in the lock class. I know the counter is...
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    Re: Combination lock

    I cannot do that since I have to declare input2 before I print it, and since it is declared in the input it does not get the chance to print the length. As soon as type the second character and press...
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    Re: Combination lock

    So the string "input2" is longer than 1 character?
  25. Replies
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    Combination lock

    For starters, I have no clue how to use the counter IV. I'm trying to create a combo lock with a 3 letter combo. in my test class I try to use the setPosition() method to try out a random or the...
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