An array in Java is a data structure that stores a fixed-size sequential collection of elements of the same type. It is used to store multiple values in a single variable, which can be accessed and manipulated using an index. To declare an array in Java, you specify the type of elements it will hold, followed by square brackets and the name of the array, like this: type[] arrayName; For example, to declare an array of integers, you would write: int[] numbers; To create an array, you use the `new` keyword followed by the type and the size of the array, like this: numbers = new int[5]; This creates an array called `numbers` with a length of 5, meaning it can hold 5 integers. You can also declare and create an array in a single line, like this: int[] numbers = new int[5]; To access elements in an array, you use square brackets and the index of the element you want to access. The index of the first element in the array is 0. For example, to assign a value to the first element of the `numbers` array, you would write: numbers[0] = 10; To retrieve the value of the third element, you would write: int value = numbers[2]; Arrays in Java have a fixed size, so you cannot change the length of an array once it is created. However, you can modify the values of individual elements. Arrays can also be looped through using a for loop or other looping constructs to perform operations on each element.

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array in java

Shivam Payasi

array in java

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