1.)
The
Java 2 Cert guide has question...
Which of the ff. signatures are valid for
the main() method entry point of application.
the answers are...
public static void main(
String args[])
public static void main(String[] args)
public static int main(String args[])
how come the third one?
2.)
Another is.. in java API docs...
The class PrintWriter states...
Methods in this class never throw I/O exceptions. The client may inquire as to whether any errors have occurred by invoking checkError().
..but methods such flush(),close(),write(),print()
throws IOException... is this contradicting?
3.) About Collection...
Is there any
real world application or practical application
that uses collection classes?
All i know is for table of information than can
use for database application.
Thanks...