Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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How can you generate random numbers in Java?

  1. Using an if-else statement

  2. Using a Random object

  3. By calling the static method Math.random()

  4. Both B and C

The correct answer is: Both B and C

Java provides different ways to generate random numbers, but the most efficient ways are by using the Random object and the static method Math.random(). Using an if-else statement will only generate a set of predetermined numbers, which defeats the purpose of generating random numbers. Both options B and C are viable since the Random object is a class in Java that provides convenient methods for generating random numbers, while the Math.random() method generates a double value between 0.0 and 1.0. These options allow for a wider range of random numbers to be generated compared to option A. Therefore, the correct answer is D.