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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the length of the string 'Hello World'?
💡 Hint: Count the characters including the space.
Question 2
Easy
What will str.charAt(1) return for str = 'Hello'?
💡 Hint: Remember indexing starts at 0.
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 returns the number of characters in a string?
- length()
- size()
- count()
💡 Hint: Think about the method commonly used for counting.
Question 2
Is the comparison between 'dog' and 'Dog' equal in Java?
- True
- False
💡 Hint: Consider how Java treats string cases.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a string str = 'Java String Handling', write a method to return the last three characters of the string.
💡 Hint: Calculate the starting index based on the length.
Question 2
How would you check if a string str contains the word 'Java' regardless of case sensitivity?
💡 Hint: Convert both to the same case before checking.
Challenge and get performance evaluation