Code refactoring

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public interface Tuple {
     static <T1> Tuple1<T1> of(T1 t1) {

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple1.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple1.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public class Tuple1<T1> implements Tuple {
     public final T1 _1;

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple2.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple2.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public class Tuple2<T1, T2> implements Tuple {
 

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple3.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple3.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public class Tuple3<T1, T2, T3> implements Tuple {
 

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple4.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple4.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public class Tuple4<T1, T2, T3, T4> implements Tuple {
 

src/main/java/com/utp/clsEstructuraDatos/pry3/Collections/Tuple5.java → src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Collections/Tuple5.java

@@ -1,4 +1,4 @@
-package com.utp.clsEstructuraDatos.pry3.Collections;
+package com.utp.clsEstructuraDatos.pry3.utils.Collections;
 
 public class Tuple5<T1, T2, T3, T4, T5> implements Tuple {
 

src/main/java/com/utp/clsEstructuraDatos/pry3/utils/Either.java

@@ -0,0 +1,47 @@
+package com.utp.clsEstructuraDatos.pry3.utils;
+
+import java.util.Optional;
+
+public class Either<T, E> {
+
+    private Optional<T> left;
+    private Optional<E> right;
+
+    private Either(T value, E error) {
+        this.left = Optional.ofNullable(value);
+        this.right = Optional.ofNullable(error);
+    }
+
+    public static <U, E> Either<U, E> left(U value) {
+        return new Either<>(value, null);
+    }
+
+    public static <U, E> Either<U, E> right(E error) {
+        return new Either<>(null, error);
+    }
+
+    public boolean isRight() {
+        return right.isPresent();
+    }
+
+    public boolean isLeft() {
+        return left.isPresent();
+    }
+
+    public T get() throws RuntimeException {
+        return unwrapLeft();
+    }
+
+    public T unwrapLeft() throws RuntimeException {
+        if (this.isRight())
+            throw new RuntimeException("Called unwrapLeft on an Right Either");
+        return left.get();
+    }
+
+    public E unwrapRight() throws RuntimeException {
+        if (this.isLeft())
+            throw new RuntimeException("Called UnwrapRight on an Left Either");
+        return right.get();
+    }
+
+}