setting Property values twice

[Lucky J Verma]

Hi,
In K & B chap 10 ,9Ques of self test exam ,at pg 795,
It regarding
if we seeting some ,same property with different values,
1 programmitcally ,and 1 on command line ,which takes priority.

answer is command line.
but when i try running ,it works opposite.
please let me know ,what is exact thing.

[Edwin Dalorzo]

I wrote a test, and I am afraid that it shows that your books is right.

I am running this program with the following command line:

java -Dfile.encoding=ASCII ...

The program contains the following code:

public static void main(String[] args) {
    System.setProperty("file.encoding", "UTF-8");
    System.out.println(System.getProperty("file.encoding"));
    System.out.println("sue�o");
}

The word "sue�o" is the Spanish word for "dream". It uses the "�" character, which is not part of the ASCII, but it is part of UTF-8.

If I run this program it prints:

UTF-8
sue?o

Which means that although I changed the setting of the file encoding to UTF-8, by the time my program manipulated this String, it still did it with ASCII encoding.

Therefore, the setting from the command line prevailed over the one provided programatically. Just as your book said.
[ September 26, 2007: Message edited by: Edwin Dalorzo ]

[sarada chellu]

answer is command line.
It work's fine for me .

[Lucky J Verma]

yaa
i got the answer.i was mis-writing the program.
with setPropety() and command line ,setProperty() works.
but with getPrioeirty(key,defValue) which sets only inital-default value,
command line parameter overrides it
thank you much