/Java/How to get the dimensions of a 2d array 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);
  }
}

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
}

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

0 vote226 views1 answer
Spring boot send username in email html template
Java Spring
0 vote316 views1 answer
How to acces every char of a String in java
Java
7 votes315 views1 answer
Java android join array list
Java
7 votes199 views2 answers
How to know java version in cmd
Java
3 votes211 views3 answers
Array methods in java
Java
1 vote192 views1 answer
Java close tcp socket output stream but not socket
Java
0 vote195 views1 answer
Import image icon
Java
64 votes228 views6 answers
Get last element of array java
Java
-1 vote213 views1 answer
Executorservice in java
Java
0 vote191 views1 answer
How to generate increasing random numbers in java
Java