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Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What type of elements can a List contain?
💡 Hint: Think about how a List is defined in Java.
Question 2
Easy
Which implementation is best for frequent insertions?
💡 Hint: Consider the structure of different List implementations.
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
Which of the following allows duplicate elements?
- Set
- List
- Map
💡 Hint: Think about the characteristics of collections.
Question 2
True or False: A Vector and ArrayList have the same performance in multi-threaded environments.
- True
- False
💡 Hint: Recall how synchronization affects performance.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a program that uses an ArrayList to store student names. Enhance the program to allow duplicate names, list the names, and remove a specific name when asked.
💡 Hint: Use Scanner for input and ensure you handle duplicates properly.
Question 2
Create a scenario within a Java application that requires the use of a Stack for undo operations, detailing how the Stack's LIFO behavior supports this.
💡 Hint: Consider how applications like text editors utilize this concept.
Challenge and get performance evaluation