/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

1 vote146 views3 answers
Android imageview set image from drawable programmatically
Java
1 vote149 views1 answer
Why java is secure
Java
2 votes168 views2 answers
Java Finding a Character in a String
Java
0 vote149 views1 answer
Mock ParameterizedTypeReference
Java
0 vote177 views1 answer
Java domande risposta multipla
Java
0 vote143 views1 answer
Gif to blob java
Java
0 vote166 views1 answer
How to change resource color to int color in android
Java
0 vote157 views1 answer
Even and odd java &
Java
0 vote146 views1 answer
Performance data in appium
Java
0 vote161 views1 answer
Authentication in spring boot
Java