Basic Array Help needed

Question

K all i am trying to do is Make an array of 5 int and then make a small basic test program that returns the smallest index of the matrix. Now the way i am doing this i want to make two files and make a call to the method that i createded called getSmallest of the public class SmallestIndex. The reason i am doing it this way nstead of putting the code in the main method is because i want to learn to pass arrays as parameters . I am learning them for the first time. This is my code:
import java.util.*;
import java.io.*;
public class SmallestIndex
     public static int getSmallest(int[] matrix)
          int minIndex = 0;
          int smallestmatrix;
          for(int index = 1; index < matrix.length; index++)
               if(matrix[minIndex] < matrix[index])
                    minIndex = index;
               smallestmatrix = matrix[minIndex];
               return smallestmatrix;
     public static void fillarray(int[] matrix, int numofelements) throws IOException
          BufferedReader board = new BufferedReader(new InputStreamReader(System.in));
          StringTokenizer tokenizer;
          tokenizer = new StringTokenizer(board.readLine());
          for(int index = 0; index < numofelements; index++)
               matrix[index] = Integer.parseInt(tokenizer.nextToken());
               if(!tokenizer.hasMoreTokens())
                    tokenizer = new StringTokenizer(board.readLine());
     public static void printArray(int[] matrix, int numofelements)
          for(int index = 0;index < numofelements; index++)
               System.out.print(matrix[index] + " ");
import java.io.*;
public class TestMatrix
     static BufferedReader board = new BufferedReader(new InputStreamReader(System.in));
     public static void main(String[] args) throws IOException
          int[] matrix = new int[5];
          for(int index = 0; index < matrix.length; index++)
               matrix[index] = Integer.parseInt(board.readLine());
          System.out.print("Elements");
          SmallestIndex.printArray(matrix, matrix.length);
          //SmallestIndex.fillarray(matrix);
          //SmallestIndex.getSmallest(matrix);

Answer 1

Here's something slightly different. Compare to yours to see differences
import java.io.*;
class SmallestIndex
  public SmallestIndex()
    int[] matrix = fillArray();
    printArray(matrix);
    System.out.println("Smallest          = " + getSmallestNumber(matrix));
    System.out.println("Index of smallest = " + getSmallestIndex(matrix));  
    System.exit(0);
  private int[] fillArray()
    int[] temp = new int[5];
    try
      BufferedReader board = new BufferedReader(new InputStreamReader(System.in));
      for( int x = 0; x < 5; x++)
        System.out.print("Enter a number: ");
        temp[x] = Integer.parseInt(board.readLine());
    catch(Exception e) {System.out.println("error - " + e.getMessage());}   
    return temp;  
  private void printArray(int[] arrayToPrint)
    for(int x = 0; x < arrayToPrint.length; x++)
      System.out.println("Element "+ x + " = " + arrayToPrint[x]);
  private int getSmallestNumber(int[] arrayToGetNumber)
    int smallest = arrayToGetNumber[0];
    for(int x = 1; x < arrayToGetNumber.length; x++)
      if(arrayToGetNumber[x] < smallest)
        smallest = arrayToGetNumber[x];
    return smallest;
  private int getSmallestIndex(int[] arrayToGetIndex)
    int smallest = arrayToGetIndex[0];
    int smallestIndex = 0;
    for(int x = 1; x < arrayToGetIndex.length; x++)
      if(arrayToGetIndex[x] < smallest)
        smallest = arrayToGetIndex[x];
        smallestIndex = x;
    return smallestIndex;
  public static void main(String[] args){new SmallestIndex();}
}