diff --git a/Application.class b/Application.class
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diff --git a/Application.java b/Application.java
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+++ b/Application.java
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+import java.io.OutputStream;
+import java.net.InetSocketAddress;
+import com.sun.net.httpserver.HttpServer;
+
+public class Application {
+  public static void main(String[] args) throws Exception {
+    int serverPort = 8084;
+
+    // Create an HTTP server and bind it to the specified port
+    HttpServer server = HttpServer.create(new InetSocketAddress(serverPort), 0);
+
+    // Create a context for the "/api/hello" endpoint
+    server.createContext("/api/hello", (exchange -> {
+      String respText = "Hello world"; // The response text
+
+      // Send the response headers (HTTP 200 OK, content length of the response)
+      exchange.sendResponseHeaders(200, respText.getBytes().length);
+
+      // Get the response body output stream and write the response to it
+      OutputStream outputStream = exchange.getResponseBody();
+      outputStream.write(respText.getBytes());
+      outputStream.flush();
+
+      // Close the exchange to finish the request
+      exchange.close();
+    }));
+
+    server.setExecutor(null); // Use default executor
+    server.start(); // Start the server
+    System.out.println("Server started on port " + serverPort);
+  }
+}
+
diff --git a/FibonacciSEQUENSE.class b/FibonacciSEQUENSE.class
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diff --git a/FibonacciSEQUENSE.java b/FibonacciSEQUENSE.java
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+++ b/FibonacciSEQUENSE.java
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+import java.util.Scanner;
+
+/**
+ * FibonacciSEQUENSE
+ */
+public class FibonacciSEQUENSE {
+
+  public static long[] fibCache;
+
+  public static void main(String[] args) {
+    // 1 1 2 3 5 8 13
+    Scanner sc = new Scanner(System.in);
+
+    System.out.println("Please enter a number to get the corresponding Fibonacci Number: ");
+    int x = sc.nextInt();
+    fibCache = new long[1 + x];
+
+    for (int i = 0; i < x; i++) {
+      System.out.println(fibSequence(i));
+    }
+    sc.close();
+  }
+
+  public static long fibSequence(int n) {
+    if (n <= 1) {
+      return n;
+    }
+    if (fibCache[n] != 0) {
+      return fibCache[n];
+    }
+    long fibNum = (fibSequence(n - 1) + fibSequence(n - 2));
+    fibCache[n] = fibNum;
+    return fibNum;
+  }
+}
diff --git a/Grains.class b/Grains.class
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diff --git a/Grains.java b/Grains.java
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+++ b/Grains.java
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+/**
+ * Grains
+ */
+public class Grains {
+
+  public static void main(String[] args) {
+
+    System.out.println(grainsCount());
+  }
+
+  public static double grainsCount() {
+    // Calculate the number of grains of wheat on a chessboard given that the number
+    // on each square doubles.
+    double gCount = 0;
+    double grainOnCurrentSQ = 1;
+    for (int i = 1; i <= 64; i++) {
+      gCount += grainOnCurrentSQ;
+      grainOnCurrentSQ *= 2;
+    }
+    return gCount;
+  }
+}
diff --git a/target/classes/Alone.class b/target/classes/Alone.class
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diff --git a/target/classes/Alonea.class b/target/classes/Alonea.class
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diff --git a/target/classes/PrepSession/Alonea.class b/target/classes/PrepSession/Alonea.class
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