An array in Java is a collection of elements of the same data type stored in contiguous memory locations. Arrays are fixed in size and can hold both primitive (e.g., int, double) and object (e.g., String) types.

1. Arrays in Java
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2. Introduction to Arrays
• An array is a collection of elements of the
same data type stored in contiguous memory
locations.
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Arrays-Overview

3. Declaring & Initializing Arrays
• Syntax:
• int[] arr = new int[5];
• OR
• int[] numbers = {1, 2, 3, 4, 5};
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Arrays-Overview

4. Accessing Elements
• Array elements are accessed using indexes.
• Example:
• System.out.println(arr[0]); // First element
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Arrays-Overview

5. Multidimensional Arrays
• Java supports multidimensional arrays.
• Example:
• int[][] matrix = {{1,2,3}, {4,5,6}};
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Arrays-Overview

6. Array Methods
• The java.util.Arrays class provides various
utility methods like sorting, searching, and
copying arrays.
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