Arrays and Variable Length Parameters List

import java.util.*;
 
public class LargestNumber
{
	public static void main(String[] args)
	{
		double[] numberList = {23, 45.5, 89,34, 92.78, 36, 90, 120.89,
				97, 23, 90, 89};
 
		System.out.println("The larger 0f 5.6 and 10.8 is: "
				+ largest(5.6, 10.8));
 
		System.out.println("The largest  of 23, 78, and 56 is: "
				+ largest(23,78, 56));
 
		System.out.println("The largest number of 93, 28, 83 and 66 is: "
				+ largest(93, 28, 83, 66));
 
		System.out.println("The largest of 22.5 , 12.34, 56.34, 78, "
			+ "\n"
				+ "98.45, 25, 78, 23 and 36 is: "
				+ largest(22.5, 12.34, 56.34, 78, 98.45, 25, 78, 23, 36));
 
		System.out.println("The largest number in  numList is: "
							+ largest(numberList));
 
		System.out.println("A call to the method largest with empty \n"
			+ " parameter list returns the value " + largest());
 
 
		}
		public static double largest(double ... numList)
		{
			double max;
			int index;
 
			if (numList.length != 0)
			{
				max = numList[0];
 
				for (index = 1; index < numList.length; index++)
				{	
					if (max < numList [index])
						max = numList [index];
 
				}
				return max;
			}
			return 0.0;
 
	}
}

The larger 0f 5.6 and 10.8 is: 10.8
The largest  of 23, 78, and 56 is: 78.0
The largest number of 93, 28, 83 and 66 is: 93.0
The largest of 22.5 , 12.34, 56.34, 78, 
98.45, 25, 78, 23 and 36 is: 98.45
The largest number in  numList is: 120.89
A call to the method largest with empty 
 parameter list returns the value 0.0

 System.out.println("The larger 0f 5.6 and 10.8 is: "
				+ largest(5.6, 10.8));

 System.out.println("The largest  of 23, 78, and 56 is: "
				+ largest(23,78, 56));

 System.out.println("The largest number of 93, 28, 83 and 66 is: "
				+ largest(93, 28, 83, 66));

 System.out.println("The largest of 22.5 , 12.34, 56.34, 78, "
			+ "\n"
				+ "98.45, 25, 78, 23 and 36 is: "
				+ largest(22.5, 12.34, 56.34, 78, 98.45, 25, 78, 23, 36));

 System.out.println("The largest number in  numList is: "
							+ largest(numberList));

 System.out.println("A call to the method largest with empty \n"
			+ " parameter list returns the value " + largest());