Fill a Double Array in Java

Declaration :

public static void fill(double[] a, double val)

1	public static void fill(double[] a, double val)

Explanation :

Purpose	The java.util.Arrays.fill(double[] a double val) method assigns the specified double value to each element of the specified array of doubles.
Parameters	a ===> This is the array to be filled.
	val ===> This is the value to be stored in all elements of the array.
Return Value	This method does not return any value.
Exception	NA

Java Program : Example

Below example will explain java.util.Arrays.fill() method.

package com.c4learn;
import java.util.Arrays;
public class ArrayDemo {
	public static void main(String[] args) {
		// Initialize double array
		double arr[] = new double[] { 10.2, 15.2, 20.2, 25.2, 30.2 };
		// Print the original array
		System.out.println("Original Array : ");
		for (double val : arr) {
			System.out.println("Value = " + val);
		}
		// Use fill to place 35.2
		Arrays.fill(arr, 35.2);
		// Print the new array
		System.out.println("\nNew Array is : ");
		for (double val : arr) {
			System.out.println("New element is " + val);
		}
	}
}

package com.c4learn;

import java.util.Arrays;

public class ArrayDemo {

public static void main(String[] args) {

// Initialize double array

double arr[] = new double[] { 10.2, 15.2, 20.2, 25.2, 30.2 };

// Print the original array

System.out.println("Original Array : ");

for (double val : arr) {

System.out.println("Value = " + val);

}

// Use fill to place 35.2

Arrays.fill(arr, 35.2);

// Print the new array

System.out.println("\nNew Array is : ");

for (double val : arr) {

System.out.println("New element is " + val);

}

Output of Program :

Original Array : 
Value = 10.2
Value = 15.2
Value = 20.2
Value = 25.2
Value = 30.2
New Array is : 
New element is 35.2
New element is 35.2
New element is 35.2
New element is 35.2
New element is 35.2

Original Array :

Value = 10.2

Value = 15.2

Value = 20.2

Value = 25.2

Value = 30.2

New Array is :

New element is 35.2

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