/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 vote162 views1 answer
Arraylist how to add at 0 java
Java
0 vote157 views2 answers
Bootstrap 4 modal get event related target
Java
0 vote175 views1 answer
Java gridpane background color
Java
0 vote178 views1 answer
Java stringbuilder setcharat
Java
0 vote189 views1 answer
13 live
Java
3 votes126 views1 answer
Java jdk set path windows 10
Java
6 votes168 views6 answers
Java do while loop example
Java
4 votes156 views1 answer
Javascript remove specific character from string
Java
31 votes166 views5 answers
Java how to get current time
Java
90 votes252 views6 answers
Java split string
Java