ARRAYS - Java Programming: From Problem Analysis to Program Design - page 568

EXAMPLE 9-5

To access the methods to process a one-dimensional array conveniently, we create the
class OneDimArrayMethods and put these methods in this class.

// This class contains methods to manipulate data in a
// one-dimensional array.

import java.util.*;

public class OneDimArrayMethods
{

//Method to input data and store in an int array.
//The array to store the data and its size are passed as
//parameters. The parameter numOfElements specifies the
//number of elements to be read.
public static void fillArray( int [] list, int numOfElements)
{

Scanner console = new Scanner(System.in);

for ( int index = 0; index < numOfElements; index++)
list[index] = console.nextInt();

}

//Method to print the elements of an int array.
//The array to be printed and the number of elements are
//passed as parameters. The parameter numOfElements
//specifies the number of elements to be printed.
public static void printArray( int [] list, int numOfElements)
{

for ( int index = 0; index < numOfElements; index++)
System.out.print(list[index] + " ");

}

//Method to find and return the sum of the elements of an
//int array. The parameter numOfElements specifies the
//number of elements to be added.
public static int sumArray( int [] list, int numOfElements)
{

int sum = 0;

for ( int index = 0; index < numOfElements; index++)
sum = sum + list[index];

return sum;

}

//Method to find and return the index of the first occurrence
//of the largest element, if it repeats, in an int array.
//The parameter numOfElements specifies the number of
//elements in the array.
public static int indexLargestElement( int [] list,
int numOfElements)