===================================================================
RCS file: /home/cvs/OpenXM/src/OpenMath/PolyCalc.java,v
retrieving revision 1.1.1.1
retrieving revision 1.4
diff -u -p -r1.1.1.1 -r1.4
--- OpenXM/src/OpenMath/PolyCalc.java	1999/11/02 11:52:34	1.1.1.1
+++ OpenXM/src/OpenMath/PolyCalc.java	1999/11/02 15:10:31	1.4
@@ -1,3 +1,7 @@
+/**
+ * $OpenXM: OpenXM/src/OpenMath/PolyCalc.java,v 1.3 1999/11/02 15:07:40 tam Exp $
+ */
+
 import JP.ac.kobe_u.math.tam.OpenXM.*;
 import java.applet.*;
 import java.awt.*;
@@ -91,20 +95,35 @@ class PolyCalc extends Applet{
     add(poly2);
   }
 
+
+
   public void start(){
     textarea.append("Connecting to "+ host
 		 +"("+ ControlPort +","+ DataPort +")\n");
 
     try{
-      oxm = new OpenXM("localhost",1200,1300);
+      oxm = new OpenXM(host,ControlPort,DataPort);
+      textarea.append("Connected.\n");
     }catch(java.io.IOException e){
       textarea.append("failed.\n");
       stop();
-      return;
     }
-    textarea.append("Connected.\n");
   }
 
+  private static String usage(){
+    String ret = "";
+
+    ret += "usage\t: java PolyCalc [options]\n";
+    ret += "options\t:\n";
+    ret += "\t -h \t show this message\n";
+    ret += "\t -host hostname \t (default localhost)\n";
+    ret += "\t -data port \t (default 1300)\n";
+    ret += "\t -control port \t (default 1200)\n";
+
+    return ret;
+  }
+
+
   public static void main(String argv[]){
     Frame frame = new Frame("Polynomial Calculator");
     Applet applet;
@@ -113,7 +132,7 @@ class PolyCalc extends Applet{
 
     for(int i=0;i<argv.length;i++){
       if(argv[i].equals("-h")){
-        System.out.println("");
+        System.out.print(usage());
         System.exit(0);
       }else if(argv[i].equals("-host")){
         host = argv[++i];
@@ -122,7 +141,8 @@ class PolyCalc extends Applet{
       }else if(argv[i].equals("-control")){
         ControlPort = Integer.valueOf(argv[++i]).intValue();
       }else{
-        System.err.println("unknown option :"+ argv[i]);
+        System.err.println("unknown option : "+ argv[i]);
+        System.err.print(usage());
         System.exit(1);
       }
     }