Local class program error

[Shiva Mohan]

    
 
class ppp{//ENCLOSING CLASS
  private static String s1 = "s1";//even the private variables can be shown in the inner class Z
  
  ppp () { new Z("s5","s6");}//---------giving error at this line
  void priya(){
    final String s2 = "s2"; 
    class Z {//----------local class
    final String s3 = "s3";
    String s4 = "s4";
    Z ( final String s5, String s6) {
       
      System.out.print(s3);
  }}
  }
  public static void main(String args[]) {new ppp();}
}

/* symbol : constructor Z (java.lang.String,java.lang.String)
location: class Z
ppp () { new Z("s5","s6");}
1 error*/

but i have the z(final String s5,String s6) constructor in Z.I couldn't figure out the way to correct this.please help me.

[Barry Gaunt]

Z is a method local class. You cannot access it from ppp() because Z is available only within the method body of priya().

What exactly are you trying to do?

[Shiva Mohan]

Thanks for the reply.

I was doing one mock exam question which is non static member class.

    
class ppp {
  private static String s1 = "s1";
  final String s2 = "s2";
  ppp () { new Z("s5","s6");}
  class Z {
    final String s3 = "s3";
    String s4 = "s4";
    Z (final String s5, String s6) {
      System.out.print(???);
  }}
  public static void main(String args[]) {new ppp();}
}

The above program, that ppp() constructor works fine.But I changed that program in method local class.this time,the constructor ppp() is not working.How come the non static member class is working and method local class is not working?

[Henry Wong]

The above program, that ppp() constructor works fine.But I changed that program in method local class.this time,the constructor ppp() is not working.How come the non static member class is working and method local class is not working?

The same reason why a constructor can't access a local variable of a method -- it is not in scope.

Henry

[Shiva Mohan]

But I would like to access z(String,String) constructor.how can I print s3 in that constructor.
Here is the updated program.

    
class ppp{//ENCLOSING CLASS
  private static String s1 = "s1";
  
  void priya(){
    final String s2 = "s2"; 
    class Z {
    final String s3 = "s3";
    String s4 = "s4";
    
    Z ( final String s5, String s6) {
       
      System.out.print(s3);
  }}
  }
  public static void main(String args[]) {new ppp().priya();}
}

[Naseem Khan]

Hi Siva,

Z is only visible inside priya() method. Yu can't access it outside. You have to create an instance of Z inside priya() method like this...

class Test9{//ENCLOSING CLASS  
private static String s1 = "s1";    
void priya(){    
final String s2 = "s2";     
class Z {    
final String s3 = "s3";    
String s4 = "s4";        
Z ( final String s5, String s6) {             
System.out.print(s3);  
}
}  
[B]new Z("s5", "s6");[/B]
}  
public static void main(String args[]) {
new Test9().priya();
}
}

Naseem

[Shiva Mohan]

Hi Naseem,

Thanks for your time. This is what exactly i want. It is so nice to hear back from you.