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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of an array in Java?
💡 Hint: Think of how an array groups similar items.
Question 2
Easy
If int[] arr = {1, 2, 3}; what willarr[1]` return?
💡 Hint: Remember indexing starts at zero.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is an array in Java?
- A single value
- A collection of similar data types
- A type of loop
💡 Hint: Consider how data is stored in Java.
Question 2
True or False: In Java, the first index of an array is 1.
- True
- False
💡 Hint: Remember how counting starts.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
Create a method that reverses an array and returns the new reversed array.
💡 Hint: Consider using two pointers.
Challenge and get performance evaluation