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

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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

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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.

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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.

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