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add sort (ascending) method

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This commit is contained in:
Andreas Huber
2017-02-05 14:18:47 +01:00
parent a535761b46
commit f7870a15a7
2 changed files with 19 additions and 0 deletions
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8
primitiveCollections/src/main/java/org/lucares/collections/IntList.java
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@@ -1,5 +1,6 @@
package org.lucares.collections; package org.lucares.collections;
import java.util.Arrays;
import java.util.List; import java.util.List;
/** /**
@@ -249,6 +250,13 @@ public class IntList {
return get(0, index); return get(0, index);
} }
/**
* Sorts the list into ascending order.
*/
public void sort() {
Arrays.sort(data, 0, index);
}
private void ensureCapacity(final int newElements) { private void ensureCapacity(final int newElements) {
final int requiredCapacity = index + newElements; final int requiredCapacity = index + newElements;

11
primitiveCollections/src/test/java/org/lucares/collections/IntListTest.java
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@@ -386,6 +386,17 @@ public class IntListTest {
Assert.assertNotEquals(a.hashCode(), b.hashCode()); Assert.assertNotEquals(a.hashCode(), b.hashCode());
} }
@Test
public void testSort() {
final IntList list = new IntList();
list.addAll(4, 2, 3, 1);
list.sort();
final int[] expectedE = new int[] { 1, 2, 3, 4 };
Assert.assertArrayEquals(expectedE, list.toArray());
}
private int[] removeElements(final int[] data, final int... removedElements) { private int[] removeElements(final int[] data, final int... removedElements) {
final int[] result = new int[data.length - removedElements.length]; final int[] result = new int[data.length - removedElements.length];
final List<Integer> blacklist = Arrays.stream(removedElements).boxed().collect(Collectors.toList()); final List<Integer> blacklist = Arrays.stream(removedElements).boxed().collect(Collectors.toList());