IF...ELSE

[Thomas Markl]

class ZombieStomp {
 public static final void main(String args []) { // ---> line 1
   String str = "markl";
   if ( str instanceof String ) { // ---> line 2
     System.out.println( " Killer Of Giants " ) ;
   } else if ( str instanceof Object) { // ---> line 3
        System.out.println ("I Shot the Sheriff" ) ;
   } 
   System.out.println("Symphony of Destruction");
 }
}

C:\Java\EigeneJavaProgramme>java ZombieStomp
Killer Of Giants
Symphony of Destruction
If str = „markl“ then (str instanceof String) is true
AND (str instanceof Object) is true.
Why doesn’t it print:
Killer Of Giants
I Shot the Sheriff
Symphony of Destruction

[Marilyn de Queiroz]

class ZombieStomp {
    public static final void main(String args []) { // ---> line 1
        String str = "markl";
        if ( str instanceof String ) { // ---> line 2
            System.out.println( " Killer Of Giants " ) ;
        } else if ( str instanceof Object) { // ---> line 3
            System.out.println ("I Shot the Sheriff" ) ;
        } 
        System.out.println("Symphony of Destruction");
    }
}

If str = „markl“ then (str instanceof String) is true
AND (str instanceof Object) is true.
Why doesn’t it print:

Killer Of Giants
I Shot the Sheriff
Symphony of Destruction

because of the 'else'. Read --

if str is an instance of string => print Killer Of Giants

or else if string is not an instance of string but is an instance of Object => print I Shot the Sheriff

then always print Symphony of Destruction

[James Chegwidden]

Is there any particular reason you added the final keyword in the main method header?

[Younes Essouabni]

If your first condition evaluate to true, the "else" won't be evaluated.