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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 a one-dimensional array in Java?
💡 Hint: Remember how we define the type and size of the array.
Question 2
Easy
How would you access the first element of an array int[] numbers = {10, 20, 30};?
💡 Hint: Think about the index starting point.
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 the default index of the first element in an array?
- 1
- 0
- None
💡 Hint: Think about the first element's position.
Question 2
True or False: A two-dimensional array is essentially a one-dimensional array.
- True
- False
💡 Hint: Consider the structure of a two-dimensionalarray.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a program that initializes a 4x4 integer two-dimensional array, fills it with random numbers, and calculates the sum of all elements.
💡 Hint: Remember to declare your array and use `Math.random()` for random numbers.
Question 2
Write a method that takes a one-dimensional array and returns the maximum value in that array.
💡 Hint: Track the maximum value found during the iteration.
Challenge and get performance evaluation