Core Java Programming Course- Random Class

The video tutorial explains how to generate random numbers in Java using the Random class and Math.random method. It covers creating random numbers within specific ranges, including advanced techniques for custom ranges. The tutorial also discusses the need to cast double values to integers when using Math.random. Overall, it provides a comprehensive guide to random number generation in Java.

What is the primary purpose of the Random class in Java?

• To sort arrays

• To generate random numbers

• To perform mathematical calculations

• To handle exceptions

How can you generate random numbers between 0 and 1000 using the Random class?

• By using nextInt(10)

• By using nextInt(1000)

• By using nextInt(100)

• By using nextInt(10000)

What is the range of numbers generated by Math.random in Java?

• 0 to 1

• 0 to 100

• 0 to 1000

• 0 to 10

Why do we need to cast the result of Math.random to an integer?

• Because Math.random returns a string

• Because Math.random returns a boolean

• Because Math.random returns a double

• Because Math.random returns a character

How can you generate numbers between 10,000 and 50,000 using Math.random?

• Multiply by 10,000 and add 40,000

• Multiply by 50,000 and add 10,000

• Multiply by 40,000 and add 10,000

• Multiply by 4,000 and add 10,000

Which method is used to generate random numbers between 0 and 1 in Java?

• Random.nextDouble

• Math.random

• Random.nextInt

• Math.sqrt

What is a key difference between the Random class and Math.random method?

• Math.random is slower

• Random class generates numbers between 0 and 1

• Random class is faster

• Math.random generates numbers between 0 and 1