java类访问权限与成员访问权限解析

package mytest
  
public interface ClassAccessTest
{
  void getData();
  CharSeqence getString();
}

package classaccesstest
  
import mytest.ClassAccessTest
  
class ClassAccessTestImp implements ClassAccessTest
{
  int mA = 0;
  
  ClassAccessTestImp(int a)
  {
    mA = a;
  }
  
  public void getData()
  {
    System.out.printlin(" the data is     " + mA);
  }
  
  public CharSequence getString()
  {
    return (" the data is " + mA);
  }
  

package classaccesstest
  
import mytest.ClassAccessTest
  
public class Factory
{
  public static ClasAccessTest getAccessTest()
  {
    return new ClassAccessTestImp(10);
  }
}

package mytest
  
import classacesstest.Factory

//import classaccesstest.ClassAccessTestImp
  
public class TestMain
{
  public static void main(String arg[])
  {
    Factory.getAccessTest().getString();

<span style="white-space:pre">  </span>//<span style="font-family: Arial, Helvetica, sans-serif;">ClassAccessTest test = </span>new <span style="font-family: Arial, Helvetica, sans-serif;">ClassAccessTestImp(10);</span>
  
  }
}