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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
Math
English Adventures
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a String in Java?
💡 Hint: Remember how we define a sequence of characters.
Question 2
Easy
How do you create a String using a literal?
💡 Hint: Recall the example given in class.
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 method would you use to find the length of a String?
- toString()
- length()
- size()
💡 Hint: It's a straightforward function that starts with 'len'.
Question 2
A String in Java can be modified after its creation. True or False?
- True
- False
💡 Hint: Recall what we discussed about String properties.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a method that accepts a String and returns the third character. Describe how this relates to the charAt() method.
💡 Hint: Remember index starts from 0.
Question 2
Write a function to concatenate two Strings with a space in between and explain how memory is affected.
💡 Hint: Think about memory management when concatenating.
Challenge and get performance evaluation