/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

13 votes152 views2 answers
Android how to start a new activity on button click
Java
0 vote139 views1 answer
Filterreader converts a string to uppercase java
Java
0 vote142 views1 answer
Android tab theme
Java
5 votes167 views1 answer
How generate a random number in java between 3 and 5
Java
1 vote155 views1 answer
Java try catch integer.parseint
Java
0 vote140 views1 answer
Get string of radio button in android
Java
1 vote177 views3 answers
Spring cors
Java
1 vote146 views1 answer
Java check if args is empty
Java
0 vote143 views1 answer
Java ultimo dia del mes
Java
0 vote144 views1 answer
Exitonclose swing
Java