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Core Java 8 refactor (#3342)

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Grzegorz Piwowarek 2018-01-04 17:21:32 +02:00 committed by GitHub
parent 2afc7dc623
commit da4bd50cdb
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4 changed files with 7 additions and 4 deletions
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2
core-java-8/src/main/java/com/baeldung/streamApi/Product.java → core-java-8/src/main/java/com/baeldung/stream/Product.java
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@ -1,4 +1,4 @@
package com.baeldung.streamApi; package com.baeldung.stream;
import java.util.List; import java.util.List;
import java.util.stream.Stream; import java.util.stream.Stream;

2
core-java-8/src/main/java/com/baeldung/stream/StreamApi.java
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@ -16,7 +16,7 @@ public class StreamApi {
} }
public static String getLastElementUsingSkip(List<String> valueList) { public static String getLastElementUsingSkip(List<String> valueList) {
long count = valueList.stream().count(); long count = (long) valueList.size();
Stream<String> stream = valueList.stream(); Stream<String> stream = valueList.stream();
return stream.skip(count - 1).findFirst().orElse(null); return stream.skip(count - 1).findFirst().orElse(null);
} }

2
core-java-8/src/test/java/com/baeldung/java8/Java8StreamApiUnitTest.java
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@ -1,6 +1,6 @@
package com.baeldung.java8; package com.baeldung.java8;
import com.baeldung.streamApi.Product; import com.baeldung.stream.Product;
import org.junit.Before; import org.junit.Before;
import org.junit.Test; import org.junit.Test;
import org.slf4j.Logger; import org.slf4j.Logger;

5
core-java-8/src/test/java/com/baeldung/stream/PrimitiveStreamsUnitTest.java
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@ -6,6 +6,7 @@ import java.util.Arrays;
import java.util.List; import java.util.List;
import java.util.stream.Collectors; import java.util.stream.Collectors;
import java.util.stream.IntStream; import java.util.stream.IntStream;
import java.util.stream.Stream;
import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertTrue;
@ -65,7 +66,9 @@ public class PrimitiveStreamsUnitTest {
@Test @Test
public void givenAnArrayWhenSumIsCalledThenTheCorrectSumIsReturned() { public void givenAnArrayWhenSumIsCalledThenTheCorrectSumIsReturned() {
int sum = Arrays.asList(33,45).stream().mapToInt(a -> a).sum(); int sum = Stream.of(33,45)
.mapToInt(i -> i)
.sum();
assertEquals(78, sum); assertEquals(78, sum);
} }