Doubles.max() is a method of Doubles Class in Guava library which is used to find the greatest value present in an array. The value returned by this method is the largest double value in the specified array.
Syntax:
public static double max(double... array)
Parameters: This method takes a mandatory parameter array which is a nonempty array of double values.
Return Value: This method returns a double value that is the maximum value in the specified array.
Exceptions: The method throws IllegalArgumentException if the array is empty.
Below programs illustrate the use of the above method:
Example 1 :
// Java code to show implementation of// Guava's Doubles.max() method  import com.google.common.primitives.Doubles;import java.util.Arrays;  class GFG {      // Driver's code    public static void main(String[] args)    {          // Creating a Double array        double[] arr = { 2.2, 4.3, 6.4, 10.2,                         0, -5.2, 15.5, 7.4 };          // Using Doubles.max() method to get the        // maximum value present in the array        System.out.println("Maximum value is : "                           + Doubles.max(arr));    }} |
Output:
Maximum value is : 15.5
Example 2 :
// Java code to show implementation of// Guava's Doubles.max() method  import com.google.common.primitives.Doubles;import java.util.Arrays;  class GFG {      // Driver's code    public static void main(String[] args)    {          // Creating a Double array        double[] arr = {};          try {            // Using Doubles.max() method to get the            // maximum value present in the array            // This should raise "IllegalArgumentException"            // as the array is empty            System.out.println("Maximum value is : "                               + Doubles.max(arr));        }        catch (Exception e) {            System.out.println(e);        }    }} |
Output:
java.lang.IllegalArgumentException
