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 package in Java?
💡 Hint: Think about how packages help manage code organization.
Question 2
Easy
Name one built-in package in Java.
💡 Hint: Consider packages related to data structures.
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 main purpose of built-in packages in Java?
- To create user interfaces
- To organize related classes
- To write low-level code
💡 Hint: Think about the structure and organization of Java code.
Question 2
True or False: The java.io package is used for data structures.
- True
- False
💡 Hint: Reflect on the functionalities of java.io.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Java program that utilizes two built-in packages, such as java.util for data management and java.io for file handling. Write it to read names from a file and store them in an ArrayList.
💡 Hint: Remember to handle exceptions when dealing with file operations.
Question 2
Discuss how Java's built-in packages promote efficiency in programming compared to writing everything from scratch.
💡 Hint: Consider the aspects of time management and code reliability.
Challenge and get performance evaluation