finished refactoring client for additions to protocol

src/main/java/JobServ/JobServClient.java

@@ -94,8 +94,25 @@ public class JobServClient {
         }
 
         int newProcess = this.api.sendNewJobMessage(command);
-        // TODO: switch here for negative returns
-        System.out.printf("Process started, assigned pid is %d\n", newProcess);
+        switch(newProcess) {
+        case -1:
+            System.out.println(this.serversideTimeoutErrorMessage);
+            break;
+
+        case -2:
+            System.out.println("Server failed to create job, check server logs.");
+            break;
+
+        case -3:
+            // error logged by API Connector
+            break;
+
+        default:
+            System.out.printf("Process started, assigned pid is %d\n", newProcess);
+            break;
+        }
+
+        return;
     }
 
     /*