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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Name a common library function in Java.
💡 Hint: Think about functions that help with output and math.
Question 2
Easy
What does System.out.println() do?
💡 Hint: It’s often used to display messages.
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 is a library function?
- A function that is user-defined
- A function that is predefined by the language
- A function that requires no parameters
💡 Hint: Remember, these functions are available without needing to write them yourself.
Question 2
True or False: Library functions can only be used once in a program.
- True
- False
💡 Hint: Think about the benefits of reusing code.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a function that utilizes a library function to convert temperature from Celsius to Fahrenheit using conversion formula. Output the result.
💡 Hint: Find the formula for temperature conversion.
Question 2
Design a small application that takes user input, converts it to an integer using Integer.parseInt(), and outputs the result.
💡 Hint: Remember to import necessary libraries and handle possible errors.
Challenge and get performance evaluation