(exceptions) (runtime) , . , , , , .
- . , , , , . , . , . : .
. . , "" (throws) -. "" , , , (try) "" (catch) . , , , . (try) (catch) -, , , try{} catch {}. catchou , , . catch(){} .
. :
class SimpleExtlf
public static void main(String[] args){
try{
int n = Integer.parselnt(args[0]);
System.out.println("After parselnt());
System.out.println(" 10 / n = " + (10 / n));
Systfem. out. println ("After results output");
}catch(ArithmeticException ae){
System.out.println("From Arithm.Exc. catch: "+ae);
}catch(ArraylndexOutOfBoundsException arre){
System.out.println("From Array.Exc.catch: "+arre);
}finally{
System.out.println("From finally");
}
System.out.println("After all actions");
} }
try{} catchou . -, tostring() -. , finaliy(). , , . , , , , try{} return. finally{}, catch () {} , . . , - - . , .
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30. , , , .
Java 4 :
1) , ( );
2) ;
3) ( )
4) - ( )
: 1. public class Parrot extends Bird
2. Wind left wind;
Wind right wind;
3. public Egg born (Parrot p, Nest n)
{
Egg a=new Egg(p,n);
return a; }
4. Parrot Kesha=new Porrot(true); Bird
Parrot Glasha=new Porrot(false);
Nest n=new Nest (30);
Egg child=Glasha.born(Kesha,n); ß
