/*
ManyNames.java example code
AC Chapin

 */
package cis214.pkg08arrays;

// a class containing an array of strings
public class ManyNames {

    // public only because it helps show what's happening in harness
    // should be private
    // often even leave out accessors and mutators for arrays or make private 
    public String[] myNames;
    //
    private int nextEmpty; // index of first spot that's empty

    // default constructor
    public ManyNames() {
        myNames = new String[10]; // room for 10 names
        myNames[0] = "none"; // put in a name
        nextEmpty = 0; // but it doesn't count
    }

    // get the nth name (assume caller counts from 1)
    // if they ask for one out of range or not yet filled
    // they will get null
    public String getNthName(int i) {
        if (i < myNames.length) {
            return myNames[i - 1];
        }
        return null;
    }

    // if there is still room in the array
    // put the given string in the next blank space
    public void addName(String str) {
        if (nextEmpty < myNames.length - 1) {
            myNames[nextEmpty] = str;
            nextEmpty++;
        }
    }
    
    // to show contents of array in tostring, we need to get the ones already added
    // can't do loop in return, so use temp variable
    public String toString() {
         String temp = "Names:\n";
         // instead of end of the array, only go up to first empty index
         for (int i = 0; i < nextEmpty; i++) {
              temp += myNames[i] = "\n";
        }
      return temp;
    }
}