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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the syntax to declare an array of integers in Java?
💡 Hint: Remember the data type comes first.
Question 2
Easy
How do you access the first element of an array?
💡 Hint: Think about how indexing starts.
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 does an array hold?
- Mixed data types
- Fixed-size
- same-type elements
- Strings only
💡 Hint: Focus on the definition of arrays.
Question 2
Are strings mutable in Java?
- True
- False
💡 Hint: Think about string modification.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a program that reads 5 integers into an array and finds the average.
💡 Hint: Consider how you will read input and calculate the sum.
Question 2
Create a two-dimensional array for a 3x3 matrix and write a function to transpose it.
💡 Hint: You will need to swap the row and column indices.
Challenge and get performance evaluation