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string to integer conversion

Sanjul Jain
Greenhorn

Joined: Oct 21, 2004
Posts: 14
Hello!

I need to change string "7777" to integer 7777, and integer 15 to string "15".

I would appreciate if you can help.

Thanks in advance,
Sanjul
Chris Dempsey
Greenhorn

Joined: Feb 24, 2004
Posts: 9
Well, the answer to both of your questions can be found in the Javadocs for the java.lang.Integer class.
rahul V kumar
Ranch Hand

Joined: May 20, 2003
Posts: 82
You have posted the same question in your other thread.
It would be easy to follow if you post at only one place.

You should get your answers here
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Integer.html

String to int
int i = Integer.parseInt("7777");

you can have it in a try catch block or check to make sure that the string is indeed a valid number.
Fisher Daniel
Ranch Hand

Joined: Sep 14, 2001
Posts: 582
Hi Sanjul,
You can convert int to String using Integer.



Remember, those will throw NumberFormatException if the string doesn't contain a valid value.

And about convert int to String you can use String.



Oh ya... now in J2SE 5.0, there is a new feature about convert between primitive data type and its wrapper class. It is Autoboxing/unboxing.
You can read at Autoboxing

Hope this help...
Correct me if I am wrong..

daniel
 
It is sorta covered in the JavaRanch Style Guide.
 
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