Miles Budnek
0
Q:

How to create a 2d array in java

for (int row = 0; row < arr.length; row++)//Cycles through rows
{
  for (int col = 0; col < arr[row].length; col++)//Cycles through columns
  {
    System.out.printf("%5d", arr[row][col]); //change the %5d to however much space you want
  }
  System.out.println(); //Makes a new row
}
//This allows you to print the array as matrix
5
 int[][] arr = new int[m][n]; 
4
char[][] array = new int[rows][columns];
3
ArrayList<ArrayList<Object>> a = new ArrayList<ArrayList<Object>>();
0

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