Fixed bugs in examples.

examples/src/main/java/spark/streaming/examples/JavaNetworkWordCount.java

@@ -23,7 +23,7 @@ import spark.streaming.api.java.JavaStreamingContext;
  */
 public class JavaNetworkWordCount {
   public static void main(String[] args) {
-    if (args.length < 2) {
+    if (args.length < 3) {
       System.err.println("Usage: NetworkWordCount <master> <hostname> <port>\n" +
           "In local mode, <master> should be 'local[n]' with n > 1");
       System.exit(1);

examples/src/main/scala/spark/streaming/examples/ActorWordCount.scala

@@ -131,8 +131,7 @@ object ActorWordCount {
     val Seq(master, host, port) = args.toSeq
 
     // Create the context and set the batch size
-    val ssc = new StreamingContext(master, "ActorWordCount",
-                                   Seconds(10))
+    val ssc = new StreamingContext(master, "ActorWordCount", Seconds(2))
 
     /*
      * Following is the use of actorStream to plug in custom actor as receiver

examples/src/main/scala/spark/streaming/examples/NetworkWordCount.scala

@@ -16,7 +16,7 @@ import spark.streaming.StreamingContext._
  */
 object NetworkWordCount {
   def main(args: Array[String]) {
-    if (args.length < 2) {
+    if (args.length < 3) {
       System.err.println("Usage: NetworkWordCount <master> <hostname> <port>\n" +
         "In local mode, <master> should be 'local[n]' with n > 1")
       System.exit(1)