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 a variable?
💡 Hint: Think about storage spaces in a program.
Question 2
Easy
Name one primitive data type.
💡 Hint: Remember the types that hold simple data.
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 size of an int data type in Java?
- 8 bits
- 16 bits
- 32 bits
- 64 bits
💡 Hint: Think about how many bits in common integer types.
Question 2
True or False: A variable can hold only one data type during its lifetime.
- True
- False
💡 Hint: Remember the rules of variable declaration.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Imagine you're storing information for a school. Create a variable for a student's name using a string and a variable for their age using an integer. Provide the declarations.
💡 Hint: Remember to use the correct data types for names and ages.
Question 2
Consider a scenario where you need to store a high-precision measurement, like the temperature of a chemical reaction. Which data type would you choose to declare this variable and why?
💡 Hint: Reflect on types that can store decimal values.
Challenge and get performance evaluation