create a Java recursive method that determines if a number is a prime number

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
Question

help create a Java recursive method that determines if a number is a prime number

**Do the following:**

Create a recursive method `computePrime(int x, int y)` that returns a boolean value. The method should:

- Return true if `x` is a prime number; otherwise, return false.
- `y` is the current divisor to check.

Prompt the user to enter a number to check if it is prime.

Make the first call from the main function, setting `y` equal to 2. Example: `primeno = computePrime(number, 2);`

**Base cases:**

- If `x < 2`, return false.
- If `x == 2`, return true.
- If `x % y == 0`, return false.
- If `y * y > x`, return true.
- Otherwise, check for the next divisor:
  - `return computePrime(x, y + 1)`

Demonstrate the method in a program (either in the same program or a separate one).

Test the program to ensure it runs correctly.
Transcribed Image Text:**Do the following:** Create a recursive method `computePrime(int x, int y)` that returns a boolean value. The method should: - Return true if `x` is a prime number; otherwise, return false. - `y` is the current divisor to check. Prompt the user to enter a number to check if it is prime. Make the first call from the main function, setting `y` equal to 2. Example: `primeno = computePrime(number, 2);` **Base cases:** - If `x < 2`, return false. - If `x == 2`, return true. - If `x % y == 0`, return false. - If `y * y > x`, return true. - Otherwise, check for the next divisor: - `return computePrime(x, y + 1)` Demonstrate the method in a program (either in the same program or a separate one). Test the program to ensure it runs correctly.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Computational Systems
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education