Java (8) les exceptions compléments

2003
java 
p r o g r a m m a t i o n p a r o b j e t s &
m é t h o d o l o g i e d e m i s e e n œ u v r e
u f r d ’ i n f o r m a t i q u e
m a î t r i s e
u n i v e r s i t é
P i e r r e & M a r i e C u r i e
P a r i s 6
Java
(8)
les exceptions
compléments
contrôle statique et redéclaration
contrôle statique et redéfinition

2003
java 
?
••

2003
java 
throws
throws
  !
throws
"
class A {
}
class B extends A {
}
⊇
⊇⊇
⊇
⊇
⊇⊇
⊇
Throwable ⊇
⊇⊇
⊇ Exception
void mth00() throws Throwable { throw new Throwable() ; }
void mth00() throws Exception { throw new Exception() ; }
void mth01() throws Exception { throw new Exception() ; }
void mth01() { }
 ⊇
⊇⊇
⊇
••

2003
java 
throws
  !
throws
"
class A {
}
class B extends A {
}
⊇
⊇⊇
⊇
⊇
⊇⊇
⊇
void mth02() throws Exception { throw new Exception() ; }
void mth02() throws Throwable { throw new Throwable() ; }
Exception ⊇
⊇⊇
⊇ Throwable
void mth03() { }
void mth03() throws Exception { throw new Exception() ; }
 ⊇
⊇⊇
⊇
••

2003
java 
throws
throws # mth B
#mth B
B refB
A
refB = new B ()
qr
qi
0bject
B refB ;
refB = new B() ;
refB.mth() ;
B
$%throws
$%
mth() throws new Exception
mth()
⊇
⊇⊇
⊇