Trying to understand the big picture

Let me first say that I am not only new to Java but also to OOP.
So, having said that, does anyone have any serious problem with the following two statements:
1. Importing a class allows the use of certain behaviors which are not necessarily associated with any specific object.
2. Extending a class allows the ability to manipulate the state or behavior of a specific object.
If I have this right, what is the difference between inheriting a class and importing a class if there is no need of an "is a" relationship.

1. Importing a class allows the use of certain
behaviors which are not necessarily associated
with any specific object.If by "import" you mean "using an import statement", then no. An import statement is just shorthand for typing out class names longhand - you never ned use one.
"Behavious not associated with a specific object" is supplied by static members and methods in a class. For example, java.awt.Toolkit.getDefaultToolkit() allows you to get a toolkit without first having one.
2. Extending a class allows the ability to manipulate
the state or behavior of a specific object.No. If a method returns an object of type Foo and I create a new class Foo2 extends Foo, this has nothing to do with the specific object I got back. Extending classes allows you to create new object instances with different state or behaviour, with the bonus that any Foo2 object is allowed to be used anywhere a Foo object may be used.
If I have this right, what is the difference between
inheriting a class and importing a class if there is
no need of an "is a" relationship.Apples and Oranges. I get the feeling that you are readibng about OOP without actually doing any programming. That's kind of like trying to learn to drive by readiong about it. Once you write code, it becomes obvious what the bits are for.

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    Hello, Experts!
    I am pretty new to Flash Development, so I am trying to understand how to implement the following steps using Flash environment
    http://pdfdevjunkie.host.adobe.com/00_helloWorld.shtml         
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    Step 2: Create your user interface elements. In this example, I'm using a "DataGrid" which is overkill for a simple list but I'm going to expand on this example in the future. Also notice that I'm using "fileName" in the dataField. The "fileName" is a property of an item in the PDF Portfolio "items" collection. Later when we set the dataProvider of the DataGrid, the grid will fill with the fileNames of the files in the Portfolio.
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    Step 3: Respond to the "initialize" event during the creation of your interface components. This is important because there is no coordination of the Flash Player's initialization of your UI components and the set host(), so these two important milestone events in your Navigator's startup phase could occur in either order. The gist of a good way to handler this race condition is to have both your INavigator.set host() implementation and your initialize() or creationComplete() handler both funnel into a common function that starts interacting with the collection only after you have a non-null host and an initialized UI. You'll see in the code samples below and in step 4, both events funnel into the "startEverything()" function. I'll duscuss that function in the 5th step.
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    utl_http.set_header(http_req, 'Content-Type', 'text/xml') ;
    utl_http.set_header(http_req, 'Content-Length', length(soap_request)) ;
    utl_http.set_header(http_req, 'SOAPAction', 'initiate');
    utl_http.write_text(http_req, soap_request) ;
    http_resp:= utl_http.get_response(http_req) ;
    utl_http.read_text(http_resp, soap_respond) ;
    utl_http.end_response(http_resp) ;
    Exception
    WHEN UTL_HTTP.end_of_body THEN
    utl_http.end_response(http_resp);
    When utl_http.too_many_requests then
    utl_http.end_response(http_resp);
    o_message := 'End_Reponse' || ' from proc.';
    when OTHERS then
    o_message := SQLERRM || ' from proc.';
    return o_message;
    end;
    END LOOP;
    Return 'Workflow Initiated-' ||to_char(total_calls);
    end AA_DEMO_PO_WSDL;

    Hi, thanks,
    it is oracle10g,
    The Exception is : ORA-29266: end-of-body reached
    ORA-06512: at "SYS.UTL_HTTP", line 1349
    then the line in my function ,
    damorgan wrote:
    But I do note that when I do this I always do a get_header_count and get_header before get_read.what get_read , u mean?
    thanks for the link ,
    appreciated

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