Array in Java

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 In Java, an array is a data structure that allows you to store a fixed-size sequence of elements of the same data type. The elements of an array are stored in contiguous memory locations, and each element can be accessed using an index that starts from 0.

In Java, arrays are declared using square brackets ([]), and the length of the array is specified at the time of declaration. For example, to declare an array of integers with a length of 5, you would write:

go
int[] myArray = new int[5];

This creates an array of integers with 5 elements, all initialized to the default value of 0. You can access the elements of the array using the index notation, like this:

less
myArray[0] = 10; // Sets the first element to 10
myArray[1] = 20; // Sets the second element to 20
int x = myArray[2]; // Retrieves the third element (which is 0, since it hasn't been set yet)

You can also initialize the elements of an array when you declare it, like this:

python
int[] myArray = { 10, 20, 30, 40, 50 };

This creates an array of integers with 5 elements, initialized with the values 10, 20, 30, 40, and 50.

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