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Easy Learn Java: Programming Articles, Examples and Tips - Page 88


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Is text file binary?

Go to all tips in Fun, humor

Question: Is text file binary?

Joke, not answer: Cool
Yes, ALL FILES are binary, even text files... Because a file is a series of bits... And bits are binary...

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12 comments | Printer Friendly Page  Send to a Friend | Score: 2.5
Posted by jalex on Thursday, October 02, 2003 (00:00:00) (4731 reads)

How do I hide system properties that applets are allowed to read by default?

Go to all tips in Java Applets

Question: How do I hide system properties that applets are allowed to read by default?

Answer: There's no way to hide the ten system properties (see below) from applets loaded into a Java-enabled browser. The reason is that the browsers don't consult any external files as part their Java configuration, as a security precaution, including the ~/.hotjava/properties file.

From the appletviewer, you can prevent applets from finding out anything about your system by redefining the property in your ~/.hotjava/properties file. For example, to hide the name of the operating system that you are using, add this line to your ~/.hotjava/properties file:

os.name=null

Ten OS propertis that accessible by applet:
java.version
java.vendor
java.vendor.url
java.class.version
os.name
os.arch
os.version
file.separator
path.separator
line.separator



26 comments | Printer Friendly Page  Send to a Friend | Score: 5

Posted by jalex on Wednesday, October 01, 2003 (00:00:00) (5022 reads)

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