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pedja4pedja4
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BAEL-1078 Code formatting (eugenp#2539)
1 parent 6d6b245 commit 12ffbe0

3 files changed

Lines changed: 67 additions & 8 deletions

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‎core-java/pom.xml‎

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Original file line numberDiff line numberDiff line change
@@ -196,6 +196,11 @@
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<artifactId>streamex</artifactId>
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<version>${streamex.version}</version>
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</dependency>
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<dependency>
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<groupId>io.vavr</groupId>
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<artifactId>vavr</artifactId>
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<version>${vavr.version}</version>
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</dependency>
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</dependencies>
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<build>
@@ -420,6 +425,7 @@
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<fscontext.version>4.6-b01</fscontext.version>
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<protonpack.version>1.13</protonpack.version>
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<streamex.version>0.6.5</streamex.version>
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<vavr.version>0.9.0</vavr.version>
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<!-- testing -->
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<org.hamcrest.version>1.3</org.hamcrest.version>

‎core-java/src/main/java/com/baeldung/stream/StreamIndices.java‎

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Original file line numberDiff line numberDiff line change
@@ -1,37 +1,72 @@
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package com.baeldung.stream;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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import java.util.stream.IntStream;
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import com.codepoetics.protonpack.Indexed;
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import com.codepoetics.protonpack.StreamUtils;
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import io.vavr.Tuple2;
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import io.vavr.collection.Stream;
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import one.util.streamex.EntryStream;
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public class StreamIndices {
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public static List<String> getEvenIndexedStrings(String[] names) {
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List<String> evenIndexedNames = IntStream.range(0, names.length)
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.filter(i -> i % 2 == 0).mapToObj(i -> names[i])
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List<String> evenIndexedNames = IntStream
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.range(0, names.length)
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.filter(i -> i % 2 == 0)
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.mapToObj(i -> names[i])
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.collect(Collectors.toList());
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return evenIndexedNames;
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}
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public List<String> getEvenIndexedStringsVersionTwo(List<String> names) {
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List<String> evenIndexedNames = EntryStream
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.of(names)
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.filterKeyValue((index, name) -> index % 2 == 0)
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.values()
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.toList();
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return evenIndexedNames;
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}
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public static List<Indexed<String>> getEvenIndexedStrings(List<String> names) {
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List<Indexed<String>> list = StreamUtils.zipWithIndex(names.stream())
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.filter(i -> i.getIndex() % 2 == 0).collect(Collectors.toList());
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List<Indexed<String>> list = StreamUtils
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.zipWithIndex(names.stream())
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.filter(i -> i.getIndex() % 2 == 0)
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.collect(Collectors.toList());
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return list;
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}
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public static List<Indexed<String>> getOddIndexedStrings(List<String> names) {
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List<Indexed<String>> list = StreamUtils.zipWithIndex(names.stream())
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.filter(i -> i.getIndex() % 2 == 1).collect(Collectors.toList());
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List<Indexed<String>> list = StreamUtils
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.zipWithIndex(names.stream())
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.filter(i -> i.getIndex() % 2 == 1)
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.collect(Collectors.toList());
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return list;
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}
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public static List<String> getOddIndexedStrings(String[] names) {
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List<String> oddIndexedNames = IntStream.range(0, names.length)
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.filter(i -> i % 2 == 1).mapToObj(i -> names[i])
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List<String> oddIndexedNames = IntStream
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.range(0, names.length)
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.filter(i -> i % 2 == 1)
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.mapToObj(i -> names[i])
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.collect(Collectors.toList());
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return oddIndexedNames;
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}
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public static List<String> getOddIndexedStringsVersionTwo(String[] names) {
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List<Tuple2<String, Integer>> tuples = Stream
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.of(names)
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.zipWithIndex()
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.filter(tuple -> tuple._2 % 2 == 1)
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.toJavaList();
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List<String> oddIndexedNames = new ArrayList<String>();
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tuples.forEach(tuple -> {
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oddIndexedNames.add(tuple._1);
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});
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return oddIndexedNames;
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}
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}

‎core-java/src/test/java/com/baeldung/stream/StreamIndicesTest.java‎

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Original file line numberDiff line numberDiff line change
@@ -20,6 +20,15 @@ public void givenArray_whenGetIndexedStrings_thenReturnListOfEvenIndexedStrings(
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assertEquals(expectedResult, actualResult);
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}
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@Test
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public void givenArray_whenGetIndexedStrings_thenReturnListOfEvenIndexedStringsVersionTwo() {
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String[] names = { "Afrim", "Bashkim", "Besim", "Lulzim", "Durim", "Shpetim" };
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List<String> expectedResult = Arrays.asList("Afrim", "Besim", "Durim");
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List<String> actualResult = StreamIndices.getEvenIndexedStrings(names);
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assertEquals(expectedResult, actualResult);
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}
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@Test
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public void givenArray_whenGetIndexedStrings_thenReturnListOfOddStrings() {
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String[] names = { "Afrim", "Bashkim", "Besim", "Lulzim", "Durim", "Shpetim" };
@@ -47,4 +56,13 @@ public void givenList_whenGetIndexedStrings_thenReturnListOfOddIndexedStrings()
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assertEquals(expectedResult, actualResult);
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}
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@Test
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public void givenArray_whenGetIndexedStrings_thenReturnListOfOddStringsVersionTwo() {
61+
String[] names = { "Afrim", "Bashkim", "Besim", "Lulzim", "Durim", "Shpetim" };
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List<String> expectedResult = Arrays.asList("Bashkim", "Lulzim", "Shpetim");
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List<String> actualResult = StreamIndices.getOddIndexedStringsVersionTwo(names);
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assertEquals(expectedResult, actualResult);
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}
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}

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