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[java] Vice versa

Started by seppi Dec 19, 2001 at 10:39 AM 1 replies 350+ views
Original Post
seppi
seppi
If I do a creature of Class A, which creates a creature of class B, is it possible to call methods in class A with this B creature? Sorry my poor english Java knowledge, I couldn't say it better :D Edited by - seppi on December 19, 2001 11:40:19 AM
Wrathnut
Wrathnut
Seems like the same tpye of inheritance questions over and over.

As long as Class B extends Class A, Class B will have all of the methods of Class A. Just remember in the constructor for Class B to call the constructor for Class A right away.

Example

  
public Class A{
  
  public A(){ //Constructor for A

     //Init class A

  }
  

  public void doSomething(){//A method of class A


  }

}

public Class B extends A{

  public B(){
     super();
     //Now do init for class b

  }  


}


Now when you create an object of Class B, it should have the method do something. B.doSomething();

Hope that helps.

War doesn''t determine who is right, war determines who is left.
stefu
stefu
I think he meant the following:

''creature'' = ''object''? :D

  

public Class A
{
  void TestMain()
  {
    B b = new B();
    b.SetA( this ); /* give ''this'' - reference to B */
    b.TempB();
  }

  void TempA()
  {
  }
}

public Class B
{
  private A reference;
  public void SetA(A ref) { reference = ref; }

  public void TempB()
  {
    /* now you can call A here */
    reference.TempA();
  }

}

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