Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary feature of an array in Java?
💡 Hint: Think about what happens when you declare an array.
Question 2
Easy
What is a string?
💡 Hint: Remember how strings are defined in Java.
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 data type is treated as an object in Java?
- Array
- String
- Integer
💡 Hint: Think about how characters are stored in Java.
Question 2
True or False: The size of an array can be changed after it's created.
- True
- False
💡 Hint: Consider the definition of arrays.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a program that takes an array of integers and returns the sum of those integers.
💡 Hint: Use a for loop for iteration.
Question 2
Explain how you could implement a simple string manipulation that replaces spaces with hyphens.
💡 Hint: Think about string manipulation methods available in Java.
Challenge and get performance evaluation