Answers for "get length of 2d array"

4

how to get the dimensions of a 2d array in java

public class Main {
  public static void main(String[] args) {
    int[][] test = new int[10][4];
    int rows = test.length;
    int coloumns = test[0].length;
    System.out.println(rows);
    System.out.println(coloumns);
  }
}
Posted by: Guest on June-23-2020
1

length of 2d array c++

int rows = sizeof(arr) / sizeof(arr[0]); // returns rows
int col = sizeof(arr[0]) / sizeof(int); // returns col
Posted by: Guest on May-23-2020
4

java length of matrix

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
    System.out.println(foo[0].length); //3
    System.out.println(foo[1].length); //4
}
Posted by: Guest on April-22-2020

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