Two seperate class files can not resolve (pls help me) THANKS!

Question

When i compile UseMusic.java i get the following:
i can't figure it out..
Thank You for Time!
D:\java\cENG310\Ass2>javac UseMusic.java
UseMusic.java:29: cannot resolve symbol
symbol  : variable middlec
location: class UseMusic
                   mm.caldis(middlec);  // compute freqs
                             ^
UseMusic.java:42: cannot resolve symbol
symbol  : variable middlec
location: class UseMusic
         mm.setzero(middlec); // reset middlec to zero
                    ^
UseMusic.java:56: caldis(java.lang.String[],double[],double) in Music cannot be appli
                  mm.caldis(middlec);  // compute freqs
                    ^
UseMusic.java:81: checkvaild(java.lang.String[],java.lang.String) in Music cannot be
a.lang.String)
            boolean cv = mm.checkvaild(strkey);
                           ^
UseMusic.java:86: getfreq(java.lang.String[],java.lang.String) in Music cannot be app
ang.String)
               int index = mm.getfreq(strkey);
                             ^
5 errors
*  Filename    : UseMusic.java
import iopack.Io;
import java.text.DecimalFormat;
* UseMusic this class is
public class UseMusic {
      public static void main(String[] args) {
         Music mm = new Music();
               DecimalFormat fmt = new DecimalFormat("0.###"); // round output to 3 decimals places
         boolean newmidc = false;
         boolean notelookup = false;  
         System.out.println("\n\tMusical Scales");
         System.out.println("\t---------------");     // display the title and instructions
         System.out.println("\n\tDefault note values are:");  
             mm.caldis(middlec);  // compute freqs
         System.out.println("\n\t************************");
         System.out.println("\t* Notes  *  Frequency  *");
         System.out.println("\t************************"); 
         // print old results
         for (int i = 0; i < mm.noteName.length; i ++) {
                    // display values onto screen
            System.out.println("\t* " + mm.noteName[i] + "\n");
            System.out.println("      " + mm.noteFreq[i] + " Hz *\n");     
         mm.setzero(middlec); // reset middlec to zero
         // prompt user for value of midddle c
         while (!newmidc) {
               //read value new value for middle c
               double middlec = Io.readDouble("\n\tEnter value for Middle C [Between 250 - 265] (Hz)");
               // vaildate value for middlec
               // vaild if valeu for middle is between 250-265
               if ((middlec > 250) && (middlec < 265)) {
                  System.out.println("\n\tNew note values");
                  System.out.println("\n\t----------------\n");
                  mm.caldis(middlec);  // compute freqs
                  System.out.println("\n\t************************");
                  System.out.println("\t* Notes  *  Frequency  *");
                  System.out.println("\t************************"); 
                  // print old results
                  for (int i = 0; i < mm.noteName.length; i ++) {
                        // display values onto screen
                        System.out.println("\t* " + mm.noteName[i] + "\n");
                        System.out.println("      " + mm.noteFreq[i] + " Hz *\n");     
                  break;   // get out of while
               else {
                     System.out.println("\nError Invaild Input!\nValue must be between 250 Hz to 265 Hz.");         
               } //end of else
         } // end of while for newmidc
         // prompt user for note
         while (!notelookup) {
            //read value new value for
            String strkey = Io.readString("\n\tEnter note value");
            boolean cv = mm.checkvaild(strkey);
            // vaildate value for middlec
            // vaild if valeu for middle is between 250-265
            if (cv == true) {
               int index = mm.getfreq(strkey);
               System.out.println("\nNote " + mm.getnoteName(index) + "has frequency of" + mm.getnoteFreq(index) + " Hz");
               break;   // get out of while
            else {
               System.out.println("Invaild note!, please try again.");          
            } //end of else
         } //end of while    
      }// end of static main
} // end of Class UseMusic
*  Filename    : Music.java
import java.*;
public class Music
   static int MAXSIZE = 12;                  // max # of elements (13 elements)
   static double INITALMIDDLEC = 256;     // set default value of middle c to 256
   double middlec;          // user value for middlec
   String[] noteName;   // array stores name of notes
   double[] noteFreq;     // array stores freq of notes
  boolean vaildstr;     // track whether entered string is vaild
   char replay;               // user's reponse to continue prompt
   boolean uContinue;     // whether or not to continue
   int sub;                         // index of searched string
   // Default Constructor
   Music () {
      String[] noteName = {"C","C#","D","D#","E","F","F#","G","G#","A","A#","B","C'"};
      double[] noteFreq = new double[noteName.length];
      middlec = INITALMIDDLEC; // default value of middlec to 256
          vaildstr = false;        // signify whether user entered value
      sub = 0;
   void caldis(String[] noteName, double[] noteFreq, double middlec) {
      // calculate the values based upon middlec
      double temp = 0; // dummy used to store value
      double semitone = (double)Math.pow(2,(1/12));
      temp = middlec;   //set the value of the first element to middlec   
      // fill noteFreq with values wrt middlec
      // no magic #s - noteName since noteFreq has # of elements
      for (int i = 0; i < noteName.length; i++) {
         temp = noteFreq[i-1]; // save value of previous elements 
         noteFreq[i] = temp + (temp * semitone);
      } //end of for
   double getmiddlec(double middlec) {
      return middlec;   // Returns the value of middlec
   int getfreq(String[] noteName, String strkey) {     
      for (int i = 0 ; i < noteName.length ; i++) {        
         if (strkey.compareTo(noteName) == 0) {           
sub = i;
return sub;
     double setzero(double middlec) {
          middlec = 0;
          return middlec;
String getnoteName(int index) {
return noteName[index];
double getnoteFreq(int index) {
return noteFreq[index];
boolean checkvaild(String[] noteName, String strkey) {
vaildstr = noteName.equals(strkey);
return vaildstr;
} //end of Class Music

Answer 1

>
What part can't you figure out? The compiler is
telling you that it can't resolve "middlec", which it
can't, because you apparently didn't define it
anywhere. Actually he did define it, but he defined it after he passed it to those methods. If that's not simply an oversight on his part, I can't begin to understand what he was thinking.