10.4 - Introduction to Strings
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Practice Questions
Test your understanding with targeted questions
What is a string in Java?
💡 Hint: Think about how we use strings in everyday coding.
How do you find the length of a string?
💡 Hint: What method do we use for measuring size?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does String str = "Hello, World!" represent?
💡 Hint: Remember the definition of a string.
True or False: Strings in Java can be changed after they are created.
💡 Hint: Think about the properties of objects in Java.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Create a program that takes a string and outputs its length, the first character, and a reversed version of the string.
💡 Hint: How do you extract individual characters for the reversed string?
Write a method that takes a string and a character as inputs and counts how many times the character appears in the string.
💡 Hint: Consider how you can access each character efficiently.
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Reference links
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