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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the syntax for declaring an array of integers?
💡 Hint: Think about the basic structure of an array declaration.
Question 2
Easy
How would you initialize an array to hold 10 integers?
💡 Hint: Remember the use of the 'new' keyword followed by the desired size.
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 value of an uninitialized integer array element?
- 0
- null
- -1
💡 Hint: Think about what happens with uninitialized variables in Java.
Question 2
True or False: Array indices start at 1 in Java.
- True
- False
💡 Hint: Remember the foundational concept of array indexing in programming.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create an array of 10 integers. Assign each element to the square of its index and print the array using a loop.
💡 Hint: Use a loop to iterate over the array.
Question 2
Write a Java method that accepts an integer array and returns the sum of its elements.
💡 Hint: Consider how to iterate over each element to calculate the sum.
Challenge and get performance evaluation