function libary

[tolkienarda]

hi all

i am trying to learn java, i currently develop in php and mysql and i have gotten used to the documentation at php.net, all i have to do is type in a function name like php.net/isint and it takes me to a page of documentation on that function and lists several user examples, i was wondering if there is anything similar in java. and if anyone knows is there an prebuilt function to check if there is a function that checks to see if a variable is an int.

thanks

eric

[r035198x]

hi all

i am trying to learn java, i currently develop in php and mysql and i have gotten used to the documentation at php.net, all i have to do is type in a function name like php.net/isint and it takes me to a page of documentation on that function and lists several user examples, i was wondering if there is anything similar in java. and if anyone knows is there an prebuilt function to check if there is a function that checks to see if a variable is an int.

thanks

eric

First, bookmark this page.
Now unlike PHP, Java is strongly typed. Every variable's type must be known and specified at declaration time so an isInt function wouldn't make much sense since int is a primitive type anyway.
If you meant how to check if a String's value is convertible to an int, then you can use Integer.parseInt to actually convert the string to int and catch an IllegalArgumentException. If the exception is thrown, your value is not an int.

[JosAH]

For Java you have to get used to the API java documentation. It doesn't give
you direct search options that you can type in but it uses hyperlinks all over
the place. You'll get used to it. The best option (IMHO) is to download the entire
thing and bookmark it in your browser.

kind regards,

Jos

[kreagan]

First, bookmark this page.

This link doesn't contain the direct API link.
API

[tolkienarda]

thank you all
i learned everything in know about php from this site and i can see that you java guys are just as helpful as the php crew

thanks a million
eric

[JosAH]

thank you all
i learned everything in know about php from this site and i can see that you java guys are just as helpful as the php crew

thanks a million
eric

You're welcome of course. Java is just a little language but it has a huge core
set of classes. Basically it boils down to this: you don't have to do much programming
if you make good use of those core classes; everything else is just a bit of ifs,
loops, a few methods and classes, a few patterns, and what have you ...

kind regards,

Jos

[praveen2gupta]

hi all

i am trying to learn java, i currently develop in php and mysql and i have gotten used to the documentation at php.net, all i have to do is type in a function name like php.net/isint and it takes me to a page of documentation on that function and lists several user examples, i was wondering if there is anything similar in java. and if anyone knows is there an prebuilt function to check if there is a function that checks to see if a variable is an int.

thanks

eric

Hi
java works differently. You should start from scratch and read the API documents. Java ia having a huge resources in terms of methods and classes .All your nedd is available in java.