Signed Applet - Using same alias while development

Question

Hi,
I am working on Embedded Java Signed Applet. My applet using the TCP/IP thus required to load each time to my Lantronix XPort.
The problem is, every time I change something in the applet, I need to run the following commands again and finally load to Lantronix XPort.
And every time, I required to change the alias name i.e. signapplet17 in the following commands.
Is there any easy way while developing the signed applet
e.g. we can use the same alias name each time i.e. signapplet1 ( I reached to signapplet17)
Or we can avoid the following commands while developing.
jar cmf mainClass.txt DataMain.jar *.class
: Generate key pairs
keytool -genkey -alias signapplet17 -keystore mykeystore -keypass mykeypass -storepass mystorepass
: Sign the JAR file
jarsigner -keystore mykeystore -storepass mystorepass -keypass mykeypass -signedjar SDataMain.jar DataMain.jar signapplet17
: Export the public key certificate
keytool -export -keystore mykeystore -storepass mystorepass -alias signapplet17 -file mycertificate.cer
Thanks.

Answer 1

This is my code that i use to read the graph:
private Graph<Integer, Integer> loadGraph(int year, String type) {
     String graph_dir = ProjectDir.data_dir + "input/Network/vt_kn." + year + "-" + year + "/";
     String graph_name = "vt_kn." + year + "-" + year +".intern." + type;
          Graph<Integer, Integer>graph = new UndirectedSparseMultigraph<Integer, Integer>();
          try{
               GraphMLReader<Graph<Integer, Integer>, Integer, Integer> gmlReader
                    = new GraphMLReader<Graph<Integer, Integer>, Integer, Integer>();     
               gmlReader.load(graph_dir + graph_name +".graphml", graph);               
          } catch (Exception e) {
               e.printStackTrace();
System.out.println("loaded: " + graph_name);
return graph;
public class ProjectDir {
     public static final String data_dir = "F:/Apache/Tomcat 6.0/webapps/ROOT/app/Data/";
     public static final String script_dir = "../Script/";
     //F:/Apache/Tomcat 6.0/webapps/ROOT/VT/data/
Could you tell me how i could change this code so that i can load from a url instead of a file?