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what is meant by giving a variable within a class variable a transient attribute?

why preparedstatement is faster in execution than standard SQL statement ?

Exception in thread "main" java.lang.NumberFormatException: For input string: "J"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:492)
at java.lang.Integer.parseInt(Integer.java:527)
at bear.read(bear.java:34)
at bear.main(bear.java:15)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

write a complete method that read a text file full of integer. you must do this
1)store the integer into A database named "Numbers" if number does not exists
or
2) increase the numbers frequency if it exists
Then you should display the entire content of the database on the screen.
Assume database has the following fields:
Number(integer) Freq(int)

you can assume that a condition to database is already existenced and is referenced by "Msconnection"

write a java code segment that will return the number of file found inside the directory "d:/windows" iff the named directory does indeed exists

array class is transient by default ? {true,false} ,and why false if false

string class is serializable by default ? {true,false} ,and why false if false

what is meant by giving a variable within a class variable a transient attribute?

why preparedstatement is faster in execution than standard SQL statement ?

explain exactly what "rs.next()" do in addition to its return value.