how to create a package

I just know how to create a package just开发者_高级运维 by declaring it at the top of the class but I dont know the code for creating it

package myPackage;
class test{
system.out.println("Hello every one");


}

please provide me the code to compile it

This should be your lesson of the day :)

http://download.oracle.com/javase/tutorial/java/package/packages.html

Read from end to end, and don't forget this page http://download.oracle.com/javase/tutorial/java/package/managingfiles.html

Read these for compiling options:

• http://www.cs.princeton.edu/courses/archive/fall97/cs461/jdkdocs/tooldocs/win32/javac.html
• http://download.oracle.com/javase/1.4.2/docs/tooldocs/windows/javac.html

A package is 'created' by the folder hierarchy it is in. For example, your test class is in the myPackage package, which has to be in a folder called myPackage.

If your classes are in packages, then Java expects your source files to be in a directory structure that looks like the package structure. In this case, make a directory called myPackage and put test.java in that directory. Then from the directory the myPackage directory is in, run javac myPackage/test.java. This will create a test.class file in the myPackage directory. If test.java had a main function defined in it, you could then, from the same directory, run java myProject.test.

The 'test' class is supposed to be public, and put it under folder "myPackage". The folder is package.