finalize() ?

[Andrey Opanasets]

Which of the following are true ? Select six answers?

1. The signature of finalize() method is, protected void finalize() throws Throwable{}

2. The signature of finalize() method is, public void finalize() throws Throwable {}

3.The signature of finalize() method is, void finalize() throws Throwable {}

4.The signature of finalize() method is, private void finalize() throws Throwable {}

5.The finalize() method can be Overloaded.

6.The throws clause of the finalize() method can be defined with any exception.

7.The finalize() method is guaranteed to be called on any object to be GC'ed.

8.The finalize() method is called only once on any object to be GC'ed.

9.There is no restriction on the number of times the finalize() method is called on an object to be GC'ed.
test says that 1,2,5,6,7,8 is correct answers. Why 2 is correct?
thanx to all.

[Junilu Lacar]

Because the "(Java) Bible" says so... see http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#finalize()
Edit:
Just noticed that Object declares finalize() as protected. Hmmmm... must look into this further... Haven't found anything in JLS yet so if Cindy or anybody else doesn't clear this up first, I'll get back to you later.

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Junilu Lacar
Sun Certified Programmer for the Java� 2 Platform
[This message has been edited by JUNILU LACAR (edited November 10, 2001).]

[Jose Botella]

I agree 100% with 1, 5, 7 and 8
for 2 and 6 the questios are not well worded. They refer no to the finalize method in the Object class. But any overriding finalize method. When overriding a member you can increase the access, but not decreasing it.

[Andrey Opanasets]

JUNILU

Java Bible says next:
protected void finalize() throws Throwable;
Why "public void finalize() throws Throwable;" is correct signature?
test from www.jtips.net Mock1
thanx

[This message has been edited by Andrey Opanasets (edited November 10, 2001).]

[Valentin Crettaz]

you can make a method to be more accessible (protected to public) but not the opposite, i.e.
private void finalize() throws Throwable;
is not valid.
HIH
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Valentin Crettaz
Sun Certified Programmer for Java 2 Platform

[Anonymous]

Guys...Check this link out...
http://www.javaranch.com/ubb/Forum24/HTML/012910.html

HTH
Shyam
Sun Certified Programmer for the Java^TM2 Platform
[This message has been edited by Shyamsundar Gururaj (edited November 11, 2001).]