What is the public access modifier in Java?

When a method or variable is declared as public, it allows that all the classes, regardless of the classes of its package, can access the member or variable. For example:

Here, book and book1 are two different packages and the package book1 comprises the class write and method test. The package book comprises the class read.

package book1;
public class write
 {
   public void test()
     {
       System.out.println(”Write”);
     }
   }

package book;
import book1.*;
class read
 {
   public static void main(String args[])
     {
       write w= new write();
       w.test();
     }
 }

In this example, read and write both are from different packages. However, read can invoke the method test() in write class because both are marked as public.

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