passing string value from java to .exe file

AskBot

Dear All,

I'm having a problem to pass values from .class file to .exe file.
perhaps I search all corresponding dll files but I can able to know
the function. but I don't know how to pass values, I keep on searching
If anybody did such type of enhancement pls guide me

AnswerBot

Do you know JNI? This will let you interface Java to C/C++. If the .exe
file already exists, JNI will help put the String in a format that can
be sent across.

The other thing is to realize what a C/C++ string is an array of
characters (same as Java bytes) followed by \0

So,

Code:

char *test = "abcde";

is the same as

Code:

char *test = malloc (6);
test [0] = 'a';
test [1] = 'b';
test [2] = 'c';
test [3] = 'd';
test [4] = 'e';
test [5] = '\0';

Use the getBytes () method of String to get a byte array representation
of the String, and then add on the character \0. C will recognize this.

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passing string value from java to .exe file