com.elikill58.negativity.api.maths.mathcollection

Class PrimesCache

java.lang.Object

com.elikill58.negativity.api.maths.mathcollection.PrimesCache

public class PrimesCache
extends Object

Class for generating prime numbers cache using Eratosthenes Sieve.

Constructor Summary

Constructors

Constructor and Description
PrimesCache() Default constructor - setting prime cache for a default range if integers

Method Summary

Modifier and Type	Method and Description
boolean	getCacheStatus() Returns cache status
double	getComputingTime() Returns computing time of Eratosthenes Sieve
int	getMaxNumInCache() Returns cache range.
int	getNumberOfPrimes() Returns number of found primes.
boolean	isInitSuccessful() Returns true in case when primes cache initialization was successful, otherwise returns false.
int	primeTest(int n) Check whether given number is prime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrimesCache

public PrimesCache()

Default constructor - setting prime cache for a default range if integers

Method Detail

getComputingTime

public double getComputingTime()

Returns computing time of Eratosthenes Sieve

Returns:

Computing time in seconds

getCacheStatus

public boolean getCacheStatus()

Returns cache status

Returns:

PrimesCache.CACHE_EMPTY or PrimesCache.CACHING_FINISHED;

getNumberOfPrimes

public int getNumberOfPrimes()

Returns number of found primes.

Returns:

Number of found primes.

getMaxNumInCache

public int getMaxNumInCache()

Returns cache range.

Returns:

Maximum integera number in cache/

primeTest

public int primeTest(int n)

Check whether given number is prime

Parameters:

n - Given integer number.

Returns:

PrimesCache.IS_PRIME or PrimesCache.IS_NOT_PRIME or PrimesCache.NOT_IN_CACHE

isInitSuccessful

public boolean isInitSuccessful()

Returns true in case when primes cache initialization was successful, otherwise returns false.

Returns:

Returns true in case when primes cache initialization was successful, otherwise returns false.