/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 vote141 views1 answer
Joining an array of strings in java
Java
0 vote116 views1 answer
The root directory of the External Storage is:
Java
0 vote132 views1 answer
Java servlet life cycle
Java
1 vote119 views1 answer
String joiner in streams java
Java
15 votes151 views10 answers
Flutter
Java
1 vote134 views1 answer
How to operate on values from different classes in java
Java
18 votes129 views6 answers
Android java get current time
Java
0 vote116 views1 answer
Spigot send player action bar message 1.8
Java
1 vote112 views2 answers
Does finally block executed after crash
Java
0 vote153 views1 answer
Array 2
Java