Practice Explicit Type Conversion (Narrowing Conversion) - 6.5.2 | Chapter 6: Primitive Values, Wrapper Classes, Types and Casting | ICSE Class 12 Computer Science
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Practice Questions

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Question 1

Easy

What is narrowing conversion?

💡 Hint: Think about why you might need to convert a double to an int.

Question 2

Easy

What happens when you convert 10.5 to an int?

💡 Hint: What do we call this process?

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 required for narrowing conversion in Java?

  • Implicit casting
  • Explicit casting
  • Automatic conversion

💡 Hint: Think about what Java requires when changing from a larger type to a smaller type.

Question 2

True or False: Narrowing conversion can never lead to data loss.

  • True
  • False

💡 Hint: Consider what happens when converting a floating-point number to an integer.

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Challenge Problems

Push your limits with challenges.

Question 1

Create a program that reads a double value from the user, converts it to an int, and prints both values. Discuss what would happen with different inputs.

💡 Hint: What input would clearly show the effects of truncation?

Question 2

Write a Java function that attempts to convert various numbers (e.g., double, and long) to int and returns whether it was successful or if there was a notice of potential data loss.

💡 Hint: What checks do you think are necessary to prevent errors during conversion?

Challenge and get performance evaluation