How are arrays stored in memory?

Arrays are stored sequentially in memory, with each element occupying a consecutive address, starting from the first address of the array.

Storage of arrays in memory

Array is a data structure that stores multiple elements of the same data type element. The elements are stored contiguously in memory, just like a list.

Memory layout

Each array occupies a continuous memory address. The elements of the array are stored in these addresses sequentially, starting from the first address of the array.

For example, the following is an array that stores 5 integers:

int[] array = {1, 2, 3, 4, 5};

In memory, this array may be stored as follows:

| Address | Value |
|---|---|
| 1000 | 1 |
| 1004 | 2 |
| 1008 | 3 |
| 1012 | 4 |
| 1016 | 5 |

Please note that the elements are in memory stored in order. The first element is at the first address (1000), and so on.

Practical case

Consider the following Java code:

int[] nums = new int[5];
nums[0] = 10;
nums[1] = 20;
nums[2] = 30;
nums[3] = 40;
nums[4] = 50;

Generate the memory layout of the above code:

| Address | Value |
|---|---|
| 1000 | 10 |
| 1004 | 20 |
| 1008 | 30 |
| 1012 | 40 |
| 1016 | 50 |

Conclusion

Arrays are stored in memory as a continuous sequence of elements. Each element occupies its own memory address, and the elements are stored in order, starting from the first address of the array.

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