confusion in "package and import "statement :(

[Hibernate]

Protected constructors have the package private accessibility, i.e. only accessible from within the same package.
However, because the superclass's constructor must run before the subclass's constructor, the subclass can specify
which constructor the use, but only with proper accessibility as well as protected constructors.

This means the a protected constructor cannot be used from another package, but a subconstructor can specify to "use"
a protected superconstructor, for constructing the object it self, but not another object.

package thispackage;
import anotherpackage.Superclass;
class Subclass extends Superclass { //superclass have protected Superclass();
public Subclass()
{
    super(); //Allowed
    Superclass somethingelse = new Superclass(); //Not allowed
}}

[Hibernate]

It may also be good to add:

Constructors are not static; you can not use access protected constructors (in another packages) from non-static methods or initialisers, either.

Initialisers being to headless members:

class Class
{
    {
        System.out.println("Hello from " + this.toString() + "'s initialiser.");
    }
}

[funkygarzon]

Protected constructors have the package private accessibility, i.e. only accessible from within the same package.
However, because the superclass's constructor must run before the subclass's constructor, the subclass can specify
which constructor the use, but only with proper accessibility as well as protected constructors.

This means the a protected constructor cannot be used from another package, but a subconstructor can specify to "use"
a protected superconstructor, for constructing the object it self, but not another object.

package thispackage;
import anotherpackage.Superclass;
class Subclass extends Superclass { //superclass have protected Superclass();
public Subclass()
{
    super(); //Allowed
    Superclass somethingelse = new Superclass(); //Not allowed
}}

Excellent bro , thanks a lot for the above information . i clearly understood :)

It may also be good to add:

Constructors are not static; you can not use access protected constructors (in another packages) from non-static methods or initialisers, either.

Initialisers being to headless members:

class Class
{
    {
        System.out.println("Hello from " + this.toString() + "'s initialiser.");
    }
}

Constructors are not static; you can not use access protected constructors (in another packages) from non-static methods or initialisers, either.

i could not understand the above line bro :( . yes ,constructors are not static , i know that , but i could not understand the below line

you can not use access protected constructors (in another packages) from non-static methods or initialisers, either.

[Hibernate]

Just emphasising that protected constructor cannot be accessed at all from another package, exception from when specifying show constructor the superclass should use.

[funkygarzon]

Just emphasising that protected constructor cannot be accessed at all from another package, exception from when specifying show constructor the superclass should use.

thank s for the explanation bro , i can some how get your point by matching the my program that you have corrected . If you can please give me some links containing good java programs for practicing these king of stuffs and all the concepts in java . thanks in advance you bro :)