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What is the difference between ragged and jagged arrays? As per my research both have the same definitions, i.e. two-dimensional arrays with different column lengths.

Nitesh Verma
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4 Answers4

20

Your question already says the correct answer ^^ but for completeness.

A Jagged or also called Ragged array is a n-dimensional array that need not the be reactangular means:

int[][] array = {{3, 4, 5}, {77, 50}};

For more examples you could look here and here!

Gerret
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0

Jagged array is array of arrays such that member arrays can be of different sizes, i.e., we can create a 2-D arrays but with variable number of columns in each row. These type of arrays are also known as ragged arrays.

Contents of 2D Jagged Array
0 
1 2 
3 4 5 
6 7 8 9 
10 11 12 13 14 

http://www.geeksforgeeks.org/jagged-array-in-java/

roottraveller
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Ragged Array is also known as Jagged Array

1- A jagged array is non uniform array

2- Inner arrays can't be initialized so the following code snippet is going to fail

   double[][] jagged = new double[2][3]; //error

3- Instead each inner array is initialized separately

   double[][] jagged = new double[2][];
   jagged[0] = new double[5];
   jagged[1] = new double[7];
Sameh
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  • `double[][] jagged = new double[2][3];` is valid Java, isn't it? Do you mean that it's an "error" only in that it isn't a ragged array? – mic Feb 20 '21 at 21:33
-3

Ragged array: is an array with more than one dimension each dimension has different size

ex:

10 20 30
11 22 22 33 44
77 88

Jagged array: an array where each item in the array is another array. C# Code:

int[][] jaggedArray = new int[3][];
jaggedArray[0] = new int[5];
jaggedArray[1] = new int[4];
jaggedArray[2] = new int[2];
Bhupendra Shukla
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