Java - Getting error

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 25

at Duplicates.remove(Duplicates.java:145)

at Duplicates.removeDuplicates(Duplicates.java:129)

at Duplicates.main(Duplicates.java:23)

Not sure what it means. Here is my code. Please adjust and help me make it work. Only basic intro java.

/** * Duplicates.java * */ import java.io.*; import java.util.Scanner;

public class Duplicates {

public static void main(String[] args) throws IOException { Scanner input = new Scanner(System.in); int duplicates = 0, numElements = 0; String fileName = ""; String[] roster = new String[25]; //leaving extra room at end of array System.out.print("Welcome! Please enter the name of your file: "); fileName = input.next(); numElements = readFileArray(roster, fileName); insertionSort(roster, numElements); duplicates = removeDuplicates(roster, numElements); System.out.println(" I found " + numElements + " names in " + fileName + " and " + duplicates + " duplicate names."); System.out.print(" Please enter the name of the output file: "); input.nextLine(); fileName = input.nextLine(); printArray(roster, numElements, fileName); System.out.println(" The updated roster has now been written to " + fileName + "."); System.out.println(" Goodbye!"); } /** * Writes the contents of the array to the specified file * with each element on its own line * @param array the list of Strings * @param numElements the current number of elements in the array * @param fileName the file name to write the data into */ public static void printArray(String[] array, int numElements, String fileName) throws IOException {

for (int i = 0; i < numElements; i++) { System.out.println(array[i]); } if (fileName != null) { PrintWriter outFile = new PrintWriter(fileName); int j = 0; while (j < numElements) { for (int m = 0; m < numElements; m++) { outFile.println(array[m]); j++; } }

outFile.close(); } } /** * Reads in the contents of a file and stores it as an array * Also counts the number of elements in the file and returns * the count * @param array the list of String values * @param fileName the name of file to read from * @return the number of elements in the file */ public static int readFileArray(String[] array, String fileName) throws IOException { File inFile = new File(fileName); Scanner in = new Scanner(inFile); int i = 0; while(in.hasNext()) { array[i] = in.nextLine(); i++; } in.close(); return i; } /** * Sorts an array of Strings from smallest to largest * using the insertion sort algorithm * @param array the list of String values * @param numElements the current number of elements */

public static void insertionSort(String array[], int numElements) {

for(int i = 1; i <= numElements - 1; i++) {

String temp = array[i];

int j = i;

while (j > 0 && (array[j-1].compareTo(temp) > 0)) {

array[j] = array[j-1];

j = j - 1;

}

array[j] = temp;

}

return;

}

/** * Detects and removes duplicate values inside an array * Calls the remove method each time it finds a duplicate * @param array the list of String values containing duplicates * @param numElements the current number of elements stored * @return the total number of duplicates found */ public static int removeDuplicates(String[] array, int numElements) { int duplicates = 0; for (int i = 0; i < numElements; i++) { for (int j = i + 1; j < numElements; j++) { if (array[i].equals(array[j])) { duplicates++; remove(array, numElements, i); } } } return duplicates; } /** * Removes an element from an array at a specified index * @param array the list of String values * @param numElements the current number of elements stored * @param indexToRemove where in the array to remove the element */ public static void remove(String array[], int numElements, int indexToRemove) { for(int i = indexToRemove; i < array.length; ++i) { array[i] = array[i+1]; } } } //end of main

This is my textfile that is called list.txt which is what the "user" will enter:

Jiming Wu

Leanna Perez

Xing Li

Stacey Cahill

James Brown

Mohammed Abbas

Kumari Chakrabarti

Shakil Smith

James Brown

Jung Ahrin

Pedro Martinez

Ally Gu

Tamara White

Alvin Ngo

Pedro Martinez

Abir Fadel

Brad Feinman

Xiaohang Yue