Printing out of an data stored in and array and SringBuffer array

[jon ladd]

I am now on the Case were want display my data. When I press 3 I want to display all the data that is stored in the arrays Jim and I have it so it displays the student names but when we try to do the Stringbuffer major it gives a weird print out. But since this is a stringbuffer don�t I have to change the to a string before I print it if so were would this go in the print heading. Also on the int arrayCredits how does that display i have tried a variety of steps and came up empty handed. Is what I have at all right now eve close? Thanks for any input.

 public class App {
public static void main(String[] args) {
   String[] student = {
       "Jon", "Bob", "Sara"};
   StringBuffer[] major = new StringBuffer[3];
   int[] arrayCredits = {
       0, 0, 0};
   byte choice = 0;
   // Constants for testing the user's menu choice.
   final byte CHANGE_OF_MAJOR = 1;
   final byte CHANGE_OF_CREDITS = 2;
   final byte DISPLAY = 3;
   final byte EXIT = 4;
   // This is the main loop. It displays the menu and processes the user's
   // menu choice until they choose to EXIT.
   while (choice != EXIT) {
     // Draw a separator anpublic class App {
     while (choice != EXIT) {
       // Draw a separator and display the menu.
       Utility.separator(80, '*');
       System.out.println("\t" + "Student Data");
       Utility.skip();
       System.out.println("1 �Change of Major");
       System.out.println("2 - Change of Credits");
       System.out.println("3 �Display");
       System.out.println("4 - Exit");
       Utility.skip();
       System.out.print("Enter your choice: ");
       // Read the user's menu selection.
       choice = Keyboard.readByte();
       // Process the user's selection.
       switch (choice) {
         case CHANGE_OF_MAJOR: {
           String newmaj = null;
           String name = "";
           System.out.print("What is the Student Name?");
           name = Keyboard.readString();
           int x = find(student, name);
           if (x >= 0) {
             System.out.print("What is the student's Major? ");
             newmaj = Keyboard.readString();
             store(major, newmaj, x);
             Utility.pressEnterKey();
           }
         }
         case CHANGE_OF_CREDITS:
           String name;
           int newCredits = 0;
           System.out.print("What is the Student Name?");
           name = Keyboard.readString();
           int x = find(student, name);
           System.out.print("How many credits does the student have?");
           newCredits = Keyboard.readInt();
           store(arrayCredits, newCredits, x);
           break;
         case DISPLAY:
           Utility.skip();
           Utility.printField(5, "");
           Utility.printField(10, "STUDENT NAME");
           Utility.printField(5, "");
           Utility.printField(5, "MAJOR");
           Utility.printField(5, "");
           Utility.printField(15, "CREDITS EARNED");
           Utility.skip();
           Utility.printField(5, "");
           Utility.printField(10, "------------");
           Utility.printField(5, "");
           Utility.printField(5, "-----");
           Utility.printField(5, "");
           Utility.printField(15, "--------------");
           Utility.skip();
      for (int i = 0; i < student.length ;i++) {
        Utility.skip();
           Utility.printField(5, "");
           Utility.printField(10, student[i]);
           Utility.printField(5, "");
           Utility.printField(5, major.toString());
           Utility.printField(5, "");
           Utility.printField(15, "arrayCredits[i]" );

      }

           file://loop here
           Utility.pressEnterKey();
         case EXIT:
       }
     }
   }
}
public static int find(String[] students, String nameSearch) {
   int indexfind = -1;
   for (int i = 0; i < students.length; i++) {
     if (nameSearch.equals(students[i])) {
       indexfind = i;
     }
   }
   return indexfind;
}
///if (indexfind ==-1){
///    System.out.println("Please enter a valid name.");
public static boolean store(StringBuffer[] array, String maj, int index) {
   if (index >= 0 && index < array.length) {
     StringBuffer major = new StringBuffer(maj);
     array[index] = major;
     System.out.println( "Update has been made ");
     Utility.pressEnterKey();
     return true;
   }
   else {
   }
   return false;
}
 public static boolean store(int[] creditsArrays, int credits, int index) {
    if (index >= 0 && index < creditsArrays.length) {
      creditsArrays[index] = credits;
      System.out.println( "Update has been made ");
      Utility.pressEnterKey();
      return true;
    }
    else {
    }
    return false;
 }
}
 

[William Barnes]

What is:

 file://loop here

[jon ladd]

opps that not suppose to be there

[Barry Gaunt]

I think that major[i].toString() could do the trick.

[Alex McCormick]

Jon, what import statements are you using in this one? Just curious as I'm trying to compile this but I'm getting a ton of errors, so I'm assuming that I'm missing an API or something. thanks!