© { JSL }
14
class Constructor
·
usual
class
rules
w
compiler declares a default c'tor
w
you can declare the default c'tor
w
if you declare a c'tor the compiler doesn't
class
Pair
{
}
you declare a
default c'tor
class
Pair
{
public
Pair(
int
x,
int
y) {...}
}
compiler
declares a
default c'tor
class
Pair
{
public
Pair() { ... }
}
no one
declares a
default c'tor