This is a Java Program to Implement Sieve Of Eratosthenes Algorithm. This is a program to find all primes less than a number.
Here is the source code of the Java program to Implement Sieve Of Eratosthenes Algorithm. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.
/** ** Java Program to implement Sieve Of Eratosthenes **/ import java.util.Scanner; /** Class SieveOfEratosthenes **/ public class SieveOfEratosthenes { /** Function to calculate all primes less than n **/ private int[] calcPrimes(int N) { int[] arr = new int[N + 1]; for (int i = 2; i <= Math.sqrt(N); i++) { if (arr[i] == 0) { for (int j = i * i; j <= N; j += i) { arr[j] = 1; } } } return arr; } /** Function to get all primes **/ public void getPrimes(int N) { int[] primes = calcPrimes(N); display(primes); } /** Function to display all primes **/ public void display(int[] primes) { System.out.print("\nPrimes = "); for (int i = 2; i < primes.length; i++) if (primes[i] == 0) System.out.print(i +" "); System.out.println(); } /** Main function **/ public static void main (String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Sieve Of Eratosthenes Prime Algorithm Test\n"); /** Make an object of SieveOfEratosthenes class **/ SieveOfEratosthenes soe = new SieveOfEratosthenes(); /** Accept n **/ System.out.println("Enter number to find all primes less than the number\n"); int n = scan.nextInt(); soe.getPrimes(n); } }
Sieve Of Eratosthenes Prime Algorithm Test Enter number to find all primes less than the number 500 Primes = 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499
Related posts:
Spring’s RequestBody and ResponseBody Annotations
Hướng dẫn tạo và sử dụng ThreadPool trong Java
Receive email by java client
A Guide to HashSet in Java
HashSet trong java
Hướng dẫn Java Design Pattern – Visitor
Converting Java Date to OffsetDateTime
Java Program to find the maximum subarray sum using Binary Search approach
Java Program to Compute the Area of a Triangle Using Determinants
Get the workstation name or IP
New in Spring Security OAuth2 – Verify Claims
Quick Guide to Spring MVC with Velocity
Ways to Iterate Over a List in Java
A Quick Guide to Spring Cloud Consul
Exploring the Spring 5 WebFlux URL Matching
Implementing a Binary Tree in Java
Exploring the Spring Boot TestRestTemplate
Java Byte Array to InputStream
XML-Based Injection in Spring
Spring Security 5 for Reactive Applications
Apache Commons Collections Bag
Java Program to Implement Nth Root Algorithm
Serve Static Resources with Spring
Java Program to Find Inverse of a Matrix
Toán tử instanceof trong java
How to Change the Default Port in Spring Boot
Hướng dẫn Java Design Pattern – Facade
Hướng dẫn sử dụng Java String, StringBuffer và StringBuilder
Spring Boot - Quick Start
Từ khóa this và super trong Java
A Guide to ConcurrentMap
Read an Outlook MSG file