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You need to create an object of the class in which your method to be called is present.
Then you need to call the method using that object.


e.g Class obj1=new Class();
obj1.method();

Does...

ex.printStackTrace(PrintWriter s) is not to print the Hello World. It is used to change the stream of stackTrace being printed.

using
System.setErr(System.out);
you can route all your error...

It prints a stack trace for this Throwable object on the error output stream that is the value of the field System.err.

--- Update ---

You may use either of the following


...

So what is your question??

Can you once try running the program by hardcoding the values in place of the variables.
e.g.
replace


with some real values from your side and then check what is your output.

What do you mean by

cbSearchIn.getSelectedItem().toString().replaceAll("","")

Why are you doing that?
you are replacing nothing.

I think there is some problem with your sql query...

I guess this should be the place where you must start-> Interface

Firstly you can extract out the consecutive occurence of numeric entry in your text and then you may have a hashmap in which for each combination of numeric values, you can have a corresponding...

Your loop iterates numberStudents times but it stores all the values in the same variables, hence there are only 1 set of values with you when the loop ends and that is the last value entered. This...

you should not leave it. Get to the core, where you were lagging so that next time you do not face much problems with "this"

When you use the arguments in a method with the same name as the variables of the class/method, then to differentiate between those variables we use "this" keyword, which refers to the current class...

It would have been better if you would have written this on your preffered browser.

You can check out the wikipedia page and also the oracle docs.

This is not the right place.
You must start something by yourself and ask your problems if you get any.

Track the error. Doesnt it help when you check the testCal1.jsp file. Is there a setter method for Num1?

Definitely. Everyone here is there to help everyone else. :)

I am not sure but according to me -classpath is a command to set the classpath and $CLASSPATH is the environment variable which contains the value of classpath.

Do confirm, not 100% sure.

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Anytime :)

Yes, you can do so by setting the classpath i guess.

(int)(Math.random() * (max - min) + min).

This is the formula for having value in the range min-max. The minimum number here is min and the max number is max-1.

I hope this helps.

I understand that. Actually i am in an urgent need for a project, so I thought maybe i could get some help.

Any ways I have started reading the docs on oracles site. Possibly my requirement is...

Can someone help me out with Rest APIs. Where should I start learning from and how much time would it take me to get some hold over it.

Firstly you gotta try something yourself and then when you get stuck, we all are here to help you.

haha.....Well in this only 2 things can help you- 1.Internet and 2. Java book.......

you must start yourself. Learn online and then if you get stuck somewhere while programming then come back to...

try doing the programs which you did in other languages using Java. Get surrounded by problems and then get them cleared on this forum and on the internet.

Happy Learning :)

do you know any other programming language?