Is it possible to pass command line as variable.

Question

Hi to all,
I have an application(java based) which upon execution asks for database name after selection thru file dialog, it spawns dos window and executes batch file (and the batch file contain command line java programm).
Now my question is how can i pass the database name to this spawned java application in dos prompt.
Anybody's suggestion is welcomed.
Regards
Khizer

Answer 1

Two ways, as a property or as an argument.
You can set it as a property like this using the -D option:
java -Ddatabase.name=MyDatabase ....
Then you can read it from the application as
System.getProperty("database.name");
Passing it as an argument goes like this:
java ... MyMainClass MyDatabase
and read it as
public class MyMainClass {
  public static void main(String[] args) {
    if (args.length == 1) {
      System.out.println("Database name is: "+args[0]);
    } else {
      System.out.println("Usage: java ... MyMainClass <database name>");
}