arrays.fill 2d array code example

Example 1: arrays.fill java

import java.util.Arrays;
int[] myArray = new int[10];
Arrays.fill(myArray,1);//This will fill the array with 1s

Example 2: how to fill a 2d array in java

int rows = 5, column = 7;
int[][] arr = new int[rows][column]; 
   
   //2D arrays are row major, so always row first
   
for (int row = 0; row < arr.length; row++)
{
	for (int col = 0; col < arr[row].length; col++)
    {
    	arr[row][col] = 5; //Whatever value you want to set them to
    }
}

Example 3: fill a two dimensional array with default value

for (double[] row: matrix)
    Arrays.fill(row, 1.0);