how to print 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 matrixCreate dynamic 2d array in java
// Create dynamic 2d array in java
import java.util.ArrayList;
import java.util.List;
public class Dynamic2dArray
{
public static void main(String[] args)
{
List<int[]> li = new ArrayList<>();
li.add(new int[]{2,4,6});
li.add(new int[]{3,5});
li.add(new int[]{1});
// element at row 0, column 0
System.out.println("Element at [0][0]: " + li.get(0)[1]);
// get element at row : 1, column : 1
System.out.println("Element at [1][1]: " + li.get(1)[1]);
}
}Copyright © 2021 Codeinu
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