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问个基本问题

问个基本问题# Java - 爪哇娇娃

o*n2006-10-24 07:10

1 楼

Default constructor (created by system automatically) is public? or default
access? Or depending on the access keyword of the class??
Thanks

g*g2006-10-24 07:10

2 楼

public

default

【在 o*****n 的大作中提到】

: Default constructor (created by system automatically) is public? or default
: access? Or depending on the access keyword of the class??
: Thanks

o*n2006-10-24 07:10

3 楼

那为什么:
Given:
class A
{
A() { }
}
class B extends A { }
Which statement is true?
a). Class B's constructor is public.
b). Class B has no constructors.
c). Class B's constructor includes a call to this().
d). Class B's constructor includes a call to super().
A不对,d对呢?还是A,D都对?

【在 g*****g 的大作中提到】

: public
:
: default

g*g2006-10-24 07:10

4 楼

Sorry, I was wrong, the default constructor has the same access modifier
as the class itself,

【在 g*****g 的大作中提到】

: public
:
: default

o*n2006-10-24 07:10

5 楼

Do you have any reference? I also think so, but just not sure. And I need to
tell more than 20 students regarding this:)

【在 g*****g 的大作中提到】

: Sorry, I was wrong, the default constructor has the same access modifier
: as the class itself,

g*g2006-10-24 07:10

6 楼

http://www.janeg.ca/scjp/lang/constructor.html

to

【在 o*****n 的大作中提到】