Fixing the formats

Author: trynafind-sumanyu

src/main/java/com/thealgorithms/recursion/Permutations.java

@@ -1,6 +1,10 @@
 package com.thealgorithms.recursion;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
 
 /**
  * This class provides methods to generate all permutations

src/test/java/com/thealgorithms/recursion/Permutations.java

@@ -5,7 +5,6 @@
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.List;
-
 import org.junit.jupiter.api.Test;
 
 class PermutationsTest {