4.8 - Arrays
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Practice Questions
Test your understanding with targeted questions
What is the purpose of an array in Java?
💡 Hint: Think of how an array groups similar items.
If int[] arr = {1, 2, 3}; what willarr[1]` return?
💡 Hint: Remember indexing starts at zero.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is an array in Java?
💡 Hint: Consider how data is stored in Java.
True or False: In Java, the first index of an array is 1.
💡 Hint: Remember how counting starts.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Write a program that initializes an array of your choice with integer values, then finds the average of those values.
💡 Hint: Remember to use the length and a for loop.
Create a method that reverses an array and returns the new reversed array.
💡 Hint: Consider using two pointers.
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