ARRAYS - Java Programming: From Problem Analysis to Program Design - page 569

{

int maxIndex = 0; //Assume first element is the largest

for ( int index = 1; index < numOfElements; index++)
if (list[maxIndex] < list[index])
maxIndex = index;

return maxIndex;

}

//Method to copy some or all the elements of one array
//into another array. Starting at the position specified
//by src, the elements of list1 are copied into list2
//starting at the position specified by tar. The parameter
//numOfElements specifies the number of elements of list1 to
//be copied into list2. Starting at the position specified
//by tar, list2 must have enough components to copy the
//elements of list1. The following call copies all the
//elements of list1 into the corresponding positions in
//list2: copyArray(list1, 0, list2, 0, numOfElements);.
public static void copyArray( int [] list1, int src, int [] list2,
int tar, int numOfElements)

{

for ( int index = src; index < src + numOfElements; index++)
{

list2[index] = list1[tar];
tar++;

}

9

}

}

Because the methods of the class OneDimArrayMethods are public and static ,they
can be called by using the name of the class and the dot operator. For example, if myList is
an array of 10 elements of type int , the following statement outputs the elements of myList :

OneDimArrayMethods.printArray(myList, myList.length);

Just as arrays can be passed as parameters to methods, individual elements of the array
can also be passed as parameters to methods. For example, suppose that you have the
following statement:
int [] list = {2, 3, 5};
and the method:

public static int sumNum( int firstNum, int secondNum)
{

return firstNum + secondNum;

}

The following statement outputs the sum of the first two elements of the array list :
System.out.println("Sum = " + sumNum(list[0], list[1]));