General Java Questions II

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 General Java Questions II

 Q: I wonder what happened if I remove "deprecations" from my code, for

example size() and put getSize().

Don t the programs work any more on older browsers (e.g. IE3)?

Answer:  Check the docs to see whether they say "Since 1.1", "Since 1.2" or "Since

1.3"   if so, they will not work in the oldest MS VM. 

Keep in mind that Sun s programmers haven t been very good at actually

documenting this for all classes and methods.

or directly here:

To check your code against any version of the JRE (1.1, 1.2, 1.3), use

JavaPureCheck: http://java.sun.com/100percent/

Marco

 Q: How do we exchange data between Java and JavaScript and vice versa?

Answer: Public variable and methods of Java Applet are visible to a HTML document.

So using JavaScript you can access the public variables and public functions. 

The syntax is: 

var some_var = document.appletname.variable_name

With this you will get the value of the variable variable_name in your JavaScript

variable some_var.

 Q: Constructors and methods: are they the same?

I need a little help here...I have been teaching that constructors are not methods. This

is for several reasons, but mainly because JLS says "constructors are not members"

and members are "classes, interfaces, fields, and methods."

So, now the rest of the staff is ganging up on me and making life a little nasty. They

quote Deitel and Deitel, and Core Java (which references "constructor methods") and

who knows how many other books. 

The one we are teaching in is loaded with so many errors that even though it calls

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