## Maximum number of dimensions in a Java array

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Out of curiosity, how many dimensions of an array can you have in Java?

The Java *language* does not limit the number of dimensions, but the Java *VM* spec limits the number of dimensions to 255.

For example, the following code will fail to compile:

class Main { public static void main(String[] args) { final int[][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][] x; } }

with error:

1.java:18: error: array type has too many dimensions [][][][][][][][][][][][][][][][] x; ^ 1 error

(Ref: https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.1 "An array type descriptor is valid only if it represents 255 or fewer dimensions.")

**Maximum number of dimensions in a Java array,** How many maximum dimensions can an array have in C, C++, or Java? Java – Finding minimum and maximum values in an array By Chaitanya Singh | Filed Under: Java Tutorials In this example we are finding out the maximum and minimum values from an int array.

Strictly speaking about

Maximum number of dimensions in a Java array

is only one dimensional array is possible in java. because under the hood java treat multidimensional arrays as array of arrays.

Proof of concept: http://www.willamette.edu/~gorr/classes/cs231/lectures/chapter9/arrays2d.htm

that's why its possible to have ragged arrays in Java as well!

**How many maximum dimensions can an array have in C, C++, or ,** Out of curiosity, how many dimensions of an array can you have in Java? Solution. The Java language does not limit the number of dimensions, but the Java VM In Java you can find maximum or minimum value in a numeric array by looping through the array. Here is the code to do that. These are very straightforward methods to get the maximum or minimum value of an array but there is a cleaner way to do this. You cannot make it simpler than this. You will need to import java.util.* to use Arrays class.

Small experiment shows, that 255 dimensions is maximum. 256 causes compilation error;

The screenshot

**Maximum number of dimensions in a Java array,** What is the maximum number of elements that an array in Java can contain? Instructions for finding the maximum and minimum of a 2D int array using Arrays.sort(): Declare a 2D int array to sort called data . Declare two int s, one to hold the maximum value, the other the minimum value.

**Maximum size of an Java array,** Java doesn't limit you to two-dimensional arrays. Arrays can be nested within arrays to as many levels as your program needs. To declare an array with more look at this for loop which print the content of the 2 dimension array the second loop iterate over the column in each row for(int row =0 ; row < ntr.length; ++row) for(int column =0; column<ntr[row].length;++column) System.out.print(ntr[row][column]);

**Java: Use Arrays with Two Dimensions or More,** There is no size() method available with the array. Set size() method in Java with Example · Maximum number of Unique integers in Sub-Array of given size Finding the max/min value in an array of primitives using Java. Ask Question in question makes many database calls and/or I/O operations and the size of the array

**How to determine length or size of an Array in Java?,** Given an integer array of size n, find the maximum of the minimum's of every window size in the array. If there is no smaller element on right side, then next smaller is n.If there is An efficient Java program to find maximum of all minimums of. What is the maximum number of dimensions an array in C may have? a) 2 b) 8 c) 20 d) 50 e) Theoratically no limit. The only practical limits are memory size and compilers.

##### Comments

- In other words, if you needed more than 255 (ha!), you would have to make the outer ones just arrays of objects and then cast them to the actual type once you got below 256.
- This is interesting - I didn't know that. On one hand, I'm wondering why anyone would ever want to use an array of that dimensionality, and on the other, I'm wondering why they'd limit it like that.
- @Cam 255 fits in 8 bits.
- I for one can't wait to take advantage of java.util.BigArray for n-dimension arrays. "255 dimensions ought to be enough for anybody." indeed.
- @Cam it doesn't worth the complexity for something that's extremely rarely used.