Arrays In Java Programming, Slides of Java Programming

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Java Fundamentals

Course

Module 7

Arrays in Java

What are Arrays?

● (^) Arrays are used to store multiple values of the same data type ● (^) Declared by specifying type and [] ● (^) Example: ● (^) int[] numbers;

Accessing Elements:

• (^) Arrays are zero indexed
• (^) Access individual elements using index
• (^) Example:
• (^) numbers[0] = 10;

Array Initialization

● (^) Arrays can be initialized at declaration ● (^) Elements separated by commas, enclosed in {} ● (^) Example: ● (^) int[] nums = {1, 2, 3, 4};

Enhanced for Loop

● (^) Simplified looping through array elements ● (^) Example: ● (^) for (int num : numbers) { System.out.println(num); ● (^) }

Conclusion

● (^) Arrays store fixed size sequential data ● (^) Declare with type and [] ● (^) Indexed from 0, access with [index] ● (^) Support common operations like sorting, printing