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ArrayReverser.java
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26 lines (22 loc) · 867 Bytes
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import java.util.Arrays;
import java.util.Collections;
import java.util.stream.IntStream;
/**
* @author Alessandro Arosio - 03/10/2020 16:38
*/
public class ArrayReverser {
public static void main(String[] args) {
String[] stringList = new String[]{"I", "like", "hacktoberfest", "2020"};
System.out.println(Arrays.toString(reverseArrayWithJavaStreams(stringList)));
System.out.println(Arrays.toString(reverseUsingCollectionsMethod(stringList)));
}
private static Object[] reverseArrayWithJavaStreams(Object[] array) {
return IntStream.rangeClosed(1, array.length)
.mapToObj(i -> array[array.length - i])
.toArray();
}
private static Object[] reverseUsingCollectionsMethod(Object[] objects) {
Collections.reverse(Arrays.asList(objects));
return objects;
}
}