2d array length in java
public static void main(String[] args) { int[][] foo = new int[][] { new int[] { 1, 2, 3 }, new int[] { 1, 2, 3, 4}, }; System.out.println(foo.length); //2 // gives count of rows System.out.println(foo[0].length); //3 // gives count of columns for particular row System.out.println(foo[1].length); //4 }