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Reorganize LotteryNumbers for easier inclusion in the blog

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This commit is contained in:
Ilkka Seppälä 2016-08-13 17:08:57 +03:00
parent d50139e13e
commit ffbc5f2f29
1 changed files with 42 additions and 42 deletions
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84
hexagonal/src/main/java/com/iluwatar/hexagonal/domain/LotteryNumbers.java
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@ -79,6 +79,47 @@ public class LotteryNumbers {
return Collections.unmodifiableSet(numbers);
}
/**
* Generates 4 unique random numbers between 1-20 into numbers set.
*/
private void generateRandomNumbers() {
numbers.clear();
RandomNumberGenerator generator = new RandomNumberGenerator(MIN_NUMBER, MAX_NUMBER);
while (numbers.size() < NUM_NUMBERS) {
int num = generator.nextInt();
if (!numbers.contains(num)) {
numbers.add(num);
}
}
}
/**
*
* Helper class for generating random numbers.
*
*/
private static class RandomNumberGenerator {
private PrimitiveIterator.OfInt randomIterator;
/**
* Initialize a new random number generator that generates random numbers in the range [min, max]
*
* @param min the min value (inclusive)
* @param max the max value (inclusive)
*/
public RandomNumberGenerator(int min, int max) {
randomIterator = new Random().ints(min, max + 1).iterator();
}
/**
* @return a random number in the range (min, max)
*/
public int nextInt() {
return randomIterator.nextInt();
}
}
@Override
public int hashCode() {
final int prime = 31;
@ -107,46 +148,5 @@ public class LotteryNumbers {
return false;
}
return true;
}
/**
* Generates 4 unique random numbers between 1-20 into numbers set.
*/
private void generateRandomNumbers() {
numbers.clear();
RandomNumberGenerator generator = new RandomNumberGenerator(MIN_NUMBER, MAX_NUMBER);
while (numbers.size() < NUM_NUMBERS) {
int num = generator.nextInt();
if (!numbers.contains(num)) {
numbers.add(num);
}
}
}
/**
*
* Helper class for generating random numbers.
*
*/
private static class RandomNumberGenerator {
private PrimitiveIterator.OfInt randomIterator;
/**
* Initialize a new random number generator that generates random numbers in the range [min, max]
*
* @param min the min value (inclusive)
* @param max the max value (inclusive)
*/
public RandomNumberGenerator(int min, int max) {
randomIterator = new Random().ints(min, max + 1).iterator();
}
/**
* @return a random number in the range (min, max)
*/
public int nextInt() {
return randomIterator.nextInt();
}
}
}
}