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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the length() method do?
💡 Hint: Think about counting characters.
Question 2
Easy
What will name.charAt(0) return if name = "Sarah"?
💡 Hint: This is the first character in the string.
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 does the trim() method do?
- Removes all characters
- Removes leading and trailing whitespace
- Turns all characters into uppercase
💡 Hint: Think about spaces around a string.
Question 2
The method name.equals("John") checks if the string name is equal to 'John'. True or False?
- True
- False
💡 Hint: Consider character matching.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the string str = "The quick brown fox jumps over the lazy dog", extract the substring "brown fox" using the substring() method.
💡 Hint: Count characters to find the correct indices.
Question 2
Create a sequence of concatenated strings resulting in a full sentence: 'I love programming.' using at least three string variables.
💡 Hint: Think about how parts combine to make a whole.
Challenge and get performance evaluation