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code for BAEL-747 after incorporating review comments (#1560)

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This commit is contained in:
Mohamed Sanaulla
2017-04-01 22:51:12 +03:00
committed by maibin
parent 15a4a23099
commit 0b17547d20
10 changed files with 29 additions and 12 deletions
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13
algorithms/src/main/java/com/baeldung/algorithms/primechecker/BigIntegerPrimeChecker.java Normal file
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package com.baeldung.algorithms.primechecker;
import java.math.BigInteger;
public class BigIntegerPrimeChecker implements PrimeChecker{
@Override
public boolean isPrime(int number) {
BigInteger bigInt = BigInteger.valueOf(number);
return bigInt.isProbablePrime(100);
}
}

13
algorithms/src/main/java/com/baeldung/algorithms/primechecker/BruteForcePrimeChecker.java Normal file
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package com.baeldung.algorithms.primechecker;
import java.util.stream.IntStream;
public class BruteForcePrimeChecker implements PrimeChecker{
@Override
public boolean isPrime(int number) {
return IntStream.range(2, number).noneMatch(n -> (number % n == 0));
}
}

14
algorithms/src/main/java/com/baeldung/algorithms/primechecker/OptimisedPrimeChecker.java Normal file
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package com.baeldung.algorithms.primechecker;
import java.util.stream.IntStream;
public class OptimisedPrimeChecker implements PrimeChecker{
@Override
public boolean isPrime(int number) {
return IntStream.range(2, (int)Math.sqrt(number) + 1)
.noneMatch(n -> (number % n == 0));
}
}

6
algorithms/src/main/java/com/baeldung/algorithms/primechecker/PrimeChecker.java Normal file
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package com.baeldung.algorithms.primechecker;
public interface PrimeChecker {
public boolean isPrime( int number );
}

12
algorithms/src/main/java/com/baeldung/algorithms/primechecker/PrimesPrimeChecker.java Normal file
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package com.baeldung.algorithms.primechecker;
import org.apache.commons.math3.primes.Primes;
public class PrimesPrimeChecker implements PrimeChecker{
@Override
public boolean isPrime(int number) {
return Primes.isPrime(number);
}
}

26
algorithms/src/test/java/com/baeldung/algorithms/primechecker/BigIntegerPrimeCheckerTest.java Normal file
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package com.baeldung.algorithms.primechecker;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.baeldung.algorithms.primechecker.BigIntegerPrimeChecker;
import com.baeldung.algorithms.primechecker.PrimeChecker;
public class BigIntegerPrimeCheckerTest {
PrimeChecker primeChecker = new BigIntegerPrimeChecker();
@Test
public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
assertTrue(primeChecker.isPrime(13));
assertTrue(primeChecker.isPrime(1009));
}
@Test
public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
assertTrue(!primeChecker.isPrime(50));
assertTrue(!primeChecker.isPrime(1001));
}
}

27
algorithms/src/test/java/com/baeldung/algorithms/primechecker/BruteForcePrimeCheckerTest.java Normal file
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package com.baeldung.algorithms.primechecker;
import org.junit.Test;
import com.baeldung.algorithms.primechecker.BruteForcePrimeChecker;
import static org.junit.Assert.*;
public class BruteForcePrimeCheckerTest {
BruteForcePrimeChecker primeChecker = new BruteForcePrimeChecker();
@Test
public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
assertTrue(primeChecker.isPrime(13));
assertTrue(primeChecker.isPrime(1009));
}
@Test
public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
assertTrue(!primeChecker.isPrime(50));
assertTrue(!primeChecker.isPrime(1001));
}
}

26
algorithms/src/test/java/com/baeldung/algorithms/primechecker/OptimisedPrimeCheckerTest.java Normal file
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package com.baeldung.algorithms.primechecker;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.baeldung.algorithms.primechecker.OptimisedPrimeChecker;
import com.baeldung.algorithms.primechecker.PrimeChecker;
public class OptimisedPrimeCheckerTest {
PrimeChecker primeChecker = new OptimisedPrimeChecker();
@Test
public void givenPrimeNumber_whenCheckIsPrime_thenTrue(){
assertTrue(primeChecker.isPrime(13));
assertTrue(primeChecker.isPrime(1009));
}
@Test
public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse(){
assertTrue(!primeChecker.isPrime(50));
assertTrue(!primeChecker.isPrime(1001));
}
}

25
algorithms/src/test/java/com/baeldung/algorithms/primechecker/PrimesPrimeCheckerTest.java Normal file
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package com.baeldung.algorithms.primechecker;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.baeldung.algorithms.primechecker.PrimeChecker;
import com.baeldung.algorithms.primechecker.PrimesPrimeChecker;
public class PrimesPrimeCheckerTest {
PrimeChecker primeChecker = new PrimesPrimeChecker();
@Test
public void givenPrimeNumber_whenCheckIsPrime_thenTrue() {
assertTrue(primeChecker.isPrime(13));
assertTrue(primeChecker.isPrime(1009));
}
@Test
public void givenNonPrimeNumber_whenCheckIsPrime_thenFalse() {
assertTrue(!primeChecker.isPrime(50));
assertTrue(!primeChecker.isPrime(1001));
}
}