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# 1  
Old 05-06-2012
Program java arguments
Hello,

Quote:
java prog arg1 arg2
The arguments are strings. In my code I need them to be a different type, I do the cast but it is not feasible ...
Have you any idea?

Thank you
# 2  
Old 05-06-2012
Arguments are character strings. What datatype do you need them to be?
args are the command line arguments
Code:
int firstArg;
if (args.length > 0) {
    try {
        firstArg = Integer.parseInt(args[0]);
    } catch (NumberFormatException e) {
        System.err.println("Argument" + " must be an integer");
        System.exit(1);
    }
}

This User Gave Thanks to jim mcnamara For This Post:
chercheur857
# 3  
Old 05-06-2012
No, it is not an integer. It is an object of a class that I use from an API.
the exception is : cannot cast from string to the object

Please have you an idea?
# 4  
Old 05-06-2012
The shell doesn't handle objects but strings. You should give more clues about this API and what class you are referring to. Casting a string to it is certainly a wrong approach. You should also explain how you pass this object to the shell in the first place.
These 2 Users Gave Thanks to jlliagre For This Post:
chercheur857 jim mcnamara
# 5  
Old 05-07-2012
i use the freepastry API ,
inside my java program prog1.java i call a script (./script.sh a );a is a NodeHandle
script.sh
Quote:
command
java prog2 $1
command
i want that $1 will be an object NodeHandle in prog2.. but the exception is cannot cast from string to NodeHandle

Thank you
# 6  
Old 05-07-2012
If NodeHandle is serializable, store it somewhere on disk and pass its filename to prog2.
This User Gave Thanks to jlliagre For This Post:
chercheur857
# 7  
Old 05-07-2012
Yes the NodeHandle is serializable, i store it in a buffer like that?
Quote:
OutputBuffer buf;
NodeHandle nh;
nh.serialize(buf);
Please how can i deserialize it after?
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