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42 lines
872 B
42 lines
872 B
7 months ago
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## RotateArray
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### Instructions
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In a file named `RotateArray.java` write a function `rotate` that rotates the given array specified in the parameters by the number given in the second parameter and returns it.
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> Note: The rotation count may have a negative value!!!
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### Expected Functions
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```java
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public class RotateArray {
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public static Integer[] rotate(Integer[] arr, int rotationCount) {
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// your code here
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}
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}
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```
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### Usage
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Here is a possible `ExerciseRunner.java` to test your function :
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```java
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import java.io.*;
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import java.util.Arrays;
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public class ExerciseRunner {
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public static void main(String[] args) throws IOException {
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System.out.println(Arrays.toString(RotateArray.rotate(new Integer[]{4, 2, 1, 3}, 1)));
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}
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}
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```
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and its output :
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```shell
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$ javac *.java -d build
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$ java -cp build ExerciseRunner
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[3, 4, 2, 1]
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$
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```
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