don't throw IOException out of main

DTEK1066-ryhmis/src/fi/utu/dtek1066/Main.java

@@ -4,25 +4,39 @@ import java.io.IOException;
 
 public class Main {
   // TODO don't throw IOException
-  public static void main(String[] args) throws IOException {
-    SocketHandler socketHandler = new SocketHandler();
-    StreamHandler sh = socketHandler.openStreamHandler();
+  public static void main(String[] args) {
+    SocketHandler socketHandler = null;
+    StreamHandler streamHandler = null;
+    try {
+      socketHandler = new SocketHandler();
+    } catch (IOException e) {
+      System.err.println("Failed to create SocketHandler object.");
+      e.printStackTrace();
+      System.exit(1);
+    }
+    try {
+      streamHandler = socketHandler.openStreamHandler();
+    } catch (IOException e) {
+      System.err.println("Failed to open StreamHandler.");
+      e.printStackTrace();
+      System.exit(1);
+    }
 
     int t = 0;
     try {
-      t = sh.readInt();
+      t = streamHandler.readInt();
       System.err.println("Received t = " + t);
     } catch (IOException e) {
-      System.err.println("Failed in reading t through ObjectInputStream.");
+      System.err.println("Failed to read int through ObjectInputStream.");
       e.printStackTrace();
     }
 
     if (t < 2 || t > 10) {
       System.err.println("Illegal value t, sending response...");
       try {
-        sh.writeInt(-1);
+        streamHandler.writeInt(-1);
       } catch (IOException e) {
-        System.out.println("Failed in sending response for illegal value.");
+        System.out.println("Failed to send response for illegal value.");
         e.printStackTrace();
         System.exit(2);
       }
@@ -30,10 +44,6 @@ public class Main {
       System.exit(2);
     }
 
-    for (int i = 0; i < t; i++) {
-      int r = (int) (Math.random() * 5000 + 1024); // TODO ensure no duplicates
-      sh.writeInt(r);
-    }
   }
 
 }