Practice Variables and Constants - 4.5 | Chapter 4: Programming in Java | ICSE Class 12 Computer Science
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Write a variable declaration for a person's height.

πŸ’‘ Hint: Use the `float` data type for decimal values.

Question 2

Easy

Write a constant declaration for the value of Pi.

πŸ’‘ Hint: Remember to use `final` for constants.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What keyword is used to declare a constant in Java?

  • final
  • constant
  • static

πŸ’‘ Hint: Think about the keyword that prevents a variable from changing.

Question 2

True or False: Variables in Java can store values that can change.

  • True
  • False

πŸ’‘ Hint: Remember the purpose of a variable.

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Challenge Problems

Push your limits with challenges.

Question 1

Write a Java program that manages student scores, allowing for updating current scores but keeping a constant maximum score.

πŸ’‘ Hint: Use the `final` keyword for `MAX_SCORE` and an integer variable for `currentScore`.

Question 2

Discuss the benefits of using variables versus constants in a real-world programming application, highlighting both sides.

πŸ’‘ Hint: Consider situations in your everyday coding where you modify values and where fixed values make sense.

Challenge and get performance evaluation