6.4 - Accessing Array Elements
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Practice Questions
Test your understanding with targeted questions
What is the syntax to access the first element of an array named 'data'?
💡 Hint: Remember that indexing starts at zero.
Given an array 'int[] arr = {1, 2, 3};', what is 'arr[1]'?
💡 Hint: Look at the position of the elements carefully.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What index would you use to access the first element of an array?
💡 Hint: Think about how we count.
True or False: An ArrayIndexOutOfBoundsException occurs when accessing a valid index.
💡 Hint: Consider what bounds mean.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Write a method that checks if a given index is valid for a given array, returns true if valid, otherwise false.
💡 Hint: Think about boundaries to avoid errors.
Construct a program that fills an array with random numbers and prints them. Ensure you access each number using its index.
💡 Hint: Make sure to use random functions and loops effectively.
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