chore: adjusted javadoc of classes

src/main/java/fish_variety/Fish.java

@@ -1,8 +1,8 @@
+package fish_variety;
+
 /**
 * The Fish class represents a type of fish with a name and price.
 */
-package fish_variety;
-
 public class Fish {
     private String name;
 

src/main/java/fish_variety/FishCalculator.java

@@ -1,10 +1,10 @@
-/**
-* The FishCalculator class calculates the most compatible fish types that can be bought within a given price range.
-*/
 package fish_variety;
 
 import java.util.ArrayList;
 
+/**
+* The FishCalculator class calculates the most compatible fish types that can be bought within a given price range.
+*/
 public class FishCalculator {
 
     /**

src/main/java/fish_variety/FishCollection.java

@@ -1,10 +1,10 @@
-/**
-* Represents a collection of fishes with constraints.
-*/
 package fish_variety;
 
 import java.util.ArrayList;
 
+/**
+* Represents a collection of fishes with constraints.
+*/
 public class FishCollection {
     private ArrayList<Fish> fishes = new ArrayList<Fish>();
     private FishConstraints constraints;

src/main/java/fish_variety/FishConstraints.java

@@ -1,11 +1,11 @@
-/**
-* The FishConstraints class represents constraints between different types of fish.
-*/
 package fish_variety;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 
+/**
+* The FishConstraints class represents constraints between different types of fish.
+*/
 public class FishConstraints {
     private ArrayList<FishPair> constraints = new ArrayList<FishPair>();
     private ArrayList<Fish> fishes;

src/main/java/fish_variety/FishPair.java

@@ -1,8 +1,8 @@
+package fish_variety;
+
 /**
 * Represents a pair of fish.
 */
-package fish_variety;
-
 public class FishPair {
     private Fish first;
     private Fish second;