diff --git a/server/src/main/java/server/PortChecker.java b/server/src/main/java/server/PortChecker.java
index 5a0a29a..c097237 100644
--- a/server/src/main/java/server/PortChecker.java
+++ b/server/src/main/java/server/PortChecker.java
@@ -4,11 +4,11 @@ import java.io.IOException;
 import java.net.ServerSocket;
 
 public class PortChecker {
-    private int defaultPort = 8080;
-    private int lastPort = 8090; // To limit the amount of ports to look for availability
+    private static final int defaultPort = 8080;
+    private static final int lastPort = 8090; // To limit the amount of ports to look for availability
 
     /**
-     * Finds a free port to launch the program on
+     * Finds a free port to launch the program on.
      * made with the help of https://medium.com/@rrlinus5/find-available-port-in-your-system-java-f532ee48c5b3
      * @return the port that will be used to launch the program
      * @throws IOException when no available port is found
@@ -23,7 +23,7 @@ public class PortChecker {
     }
 
     /**
-     * Checks whether a port is actually available
+     * Checks whether a port is actually available.
      * @param port the number of the port that's being checker
      * @return whether the port was available
      */
diff --git a/server/src/main/java/server/ServerPortCustomizer.java b/server/src/main/java/server/ServerPortCustomizer.java
index ada203a..0994a8e 100644
--- a/server/src/main/java/server/ServerPortCustomizer.java
+++ b/server/src/main/java/server/ServerPortCustomizer.java
@@ -8,7 +8,7 @@ import org.springframework.stereotype.Component;
 @Component
 public class ServerPortCustomizer implements WebServerFactoryCustomizer<ConfigurableWebServerFactory>{
     /**
-     * Changes the port that will be used to launch the program
+     * Changes the port that will be used to launch the program.
      * made with the help of: https://www.baeldung.com/spring-boot-change-port
      * @param factory
      */