Garbage

The output to the screen of this program is the same as the previous. However, when a reference to the second Cone object is assigned to cone, the first Cone object becomes garbage.

    Cone cone  = new Cone( 1.2, 4.56 );
    System.out.println( "cone area: " + cone.area() 
      + " volume: " + cone.volume() );

    cone      = new Cone( 3.0, 1.2 );
    System.out.println( "cone area: " + cone.area() 
      + " volume: " + cone.volume() );

The picture shows the situation just after the second Cone is constructed. The first Cone no longer has a reference to it, so it is now garbage.