Child Class Should do all Initialization

Hi

consider the following code... it will give compile time error

class memberClass
{
 memberClass()
 {
  System.out.println("Member Class constructor called");
 }
};

class ParentClass
{
 ParentClass()
 {
  System.out.println("Parent Class constructor called");
 }
}

public class ChildClass
{
 private memberClass = new memberClass();

 public ChildClass()
 {
  super(memberClass);
  // super has to be the 1st call in the constructor ..
  // cant pass it memberClass as argument : ERROR
  // SOLUTION : do all initialization in Child
 }

 public static void main(String[] args)
 {
  System.out.println("Hello World!");
 }
}

Error : cannot reference this before superclass constructor has been called

package try_project1;

class memberClass
{
 memberClass()
 {
  System.out.println("Member Class constructor called");
 }
};

class ParentClass
{
 ParentClass( )
 {
  System.out.println("Parent Class constructor NO INITIALIZATION ");
 }
}

public class ChildClass extends ParentClass
{
 private memberClass memc= new memberClass();

 public ChildClass()
 {
  super();
  System.out.println("do ALL INITIALIZATION in child Class");
 }

 public static void main(String[] args)
 {
  System.out.println("Child Class Hello World!");
                ChildClass cc = new ChildClass();
 }
}