Mastering Java 2025 – 400 Free Practice Questions to Pass the 'Thinking in Java' Exam

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How can you generate random numbers in Java?

Using an if-else statement

Using a Random object

By calling the static method Math.random()

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.

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