Thread: okay, i'm getting REALLY upset

First, Your title for the post is not a good one. People have probably been inclined not to help because of the title. It should be a simple direct summary of
the problem. Second, I would take the time to write out on paper a skeleton of the program using pseudo code. This will also help with your UML class
diagram. Make a section for each method. define any input needed, any executable expressions, and the output expected. Break this big problem down
into smaller ones, then tackle one at a time. In this case I would stub in the whole program first, naming each method accordingly. Then add any variables that are global, named constants, and then the variables that are local to each ,method. Then make your constructor. Sometimes its hard to conceptualize because the flow of writing the app is different then the flow of it executing. The good thing about addressing the smaller problems first is that then you can come back on the forums and ask for help in regards to a specific issue, which then more people will respond quicker to than just throwing your arms up
and dumping your code in front of them.

yeah, you're probably right. i'm just sooooo frustrated with this. i guess i can't change the title then, huh? i'm going to try again with a different approach and see what happens.

okay, i started over. this is what i have so far for my guitar class and methods:

 
class Guitar {
    boolean isTuned = false;    //by default guitar is not tuned
    boolean isPlaying = false;  //by default guitar is not playing
 
    //declare array for guitar strings
    char [] guitarStrings = {'E','A','D','G','B','e'};
 
    public Guitar() {   //construct default Guitar object
    }
 
    public void playGuitar() { 
        isPlaying = true;
    }
 
    public void stopPlaying() {
        isPlaying  = false;
    }
 
    public void tuneGuitar() {
        isTuned = true;
    }
 
}

i can't quite figure out what to do to individually tune each string. like in my test file, how would i do something to output "String E is tuned" ?

bump. i realllyyy need help!

Quickly reading over the requirements, it sounds like each string will be an object.

A string has a name, isTunes, isPlaying, could be cool make tuned a number value, e.g 0. anything over and the string is sharp and lower and the string is flat, each time the string is accessed, it randomly gets a value 1, 0 or -1 added to the current tuned value).

class GuitarString
{
  private boolean isPlaying;
  private int tunedValue;
  private String name;
  /*
    declear the note sound variables here
  */
 
  public void GuitarString(){
    this.isPlaying = false;
    this.tunedValue = 0;
    this.name = "";
    /*
      initalize the note here
    */
  }
 public void GuitarString(String name){
    this.isPlaying = false;
    this.tunedValue = 0;
    this.name = name;
      /*
      initalize the note here
    */
  }
 public void GuitarString(String name, int tunedValue){
    this.isPlaying = false;
    this.tunedValue = tunedValue;
    this.name = name;
    /*
      initalize the note here
    */
  }
 
//Could make another for a custom note
 
  public boolean getisPlaying(){
    return this.isPlaying;
  }
 public void setisPlaying(boo isPlaying){
    this.isPlaying = isPlaying;
  }
 
  public int getTunedValue(){
    return this.tunedValue;
  }
 public void setTunedValue(int tunedValue){
    this.tunedValue = tunedValue;
  }
 
 public int getname(){
    return this.name;
  }
 public void setName(String name){
    this.name= name;
  }
 
 // Then add in methods to make the string functional.
 
 public void playNote(){
    setIsPlaying(true);
    /*
       do playing sound stuff and set tuned value here
    */
    setIsPlaying(true);
  }
 
}

That is one way you could get started strings, you can then build your Guitar out of the GuitarStrings. Hopefully it will help inspire you

(Before you ask, I deliberatly left the juicy bits for you, I don't want to take ALL your fun!)

If you're going to use an array, rather than a collection, you will need to construct the string then add it to the array, e.g

 
GuitarString GuitarStrings[] = new GuitarString[6];
 
GuitarStrings[0] = new GuitarString("E"); // Depending on which constructor you are using
GuitarStrings[1] = new GuitarString("A");
GuitarStrings[2] = new GuitarString("D");
GuitarStrings[3] = new GuitarString("G");
GuitarStrings[4] = new GuitarString("B");
GuitarStrings[5] = new GuitarString("E");

The array of GuitarStrings should go in your Guitar class.

The error expecting ; just means you're missing a ";" at the end of one of your lines, a good first palce to check is at the end of line before where the error occured.

If you're still getting the not a statement error, post the code where its happening

I'm not too sure how much experience you have with workign with objects, I made the assumption that since this is your final project you have make several programmes to learn how they interact?

A Guitar has many GuitarStrings.

So you will need to have Guitar class which contains instinces of the GuitarString.

yes, this was my final project, but this was also an 8 week introductory java class. so i don't really have that much experience with objects, though i wish we could have done a more thorough lesson on it. honestly, this crap was SOOOOO confusing, but i did use bits of your code (thanks, you're a life-saver!). i'm not sure how well i did, but i tried my best lol. and noowww my java class is over, thank God. when i was a comp sci major in high school (went to a vo-tech school), i hated java, and i tried to give it another chance, but meh. i can't deal lol.

I'm glad to hear that you finished it It sounds like apretty tough assignment after only an 8 week introduction. Hopefully you learned something, because in the end, thats what it's really all about.