concepts of looping inside methods unclear

amigo1 · September 6th, 2012, 03:26 AM

class mainclass{
void Main()
{

int ii =1; // perfectly working
for (int a =0 ; a<11 ; a++) // perfectly working
Console.WriteLine(ii++); // perfectly working

}
}

class itr
{
int i =1;
public int meth(){
for (int a =0 ; a<9 ; a++)
Console.WriteLine(i++);
}
}

error :
not all code paths return a value -- why and what this means?
================================================== ============================

class mainclass{
void Main()
{

int ii =1; // perfectly working
for (int a =0 ; a<11 ; a++) // perfectly working
Console.WriteLine(ii++); // perfectly working

}
}

class itr
{

int i =1;
public void meth(){
for (int a =0 ; a<9 ; a++)
Console.WriteLine(i++);
}
}

o/p
the above code does compile to give an output of the previous
loop i.e., for the a<11 part
the lower loop is not taken into account --- why

ChristianNagel · September 6th, 2012, 05:28 AM

Quote:

Originally Posted by amigo1

Code:

class mainclass{
void Main()
{
	
	
	int ii =1;                 // perfectly working
 for (int a =0 ;  a<11 ; a++)  // perfectly working
Console.WriteLine(ii++);      // perfectly working  
	
}
}

 class itr 
{
  int i =1; 
  public  int meth(){
   for (int a =0 ;  a<9 ; a++)
  Console.WriteLine(i++);
  }
}

error :
not all code paths return a value -- why and what this means?
================================================== ============================

The method meth is declared to return an int, and it doesn't return anything. Such a method must be declared of type void.

Quote:

Originally Posted by amigo1

Code:

 class mainclass{
void Main()
{

	int ii =1;                 // perfectly working
 for (int a =0 ;  a<11 ; a++)  // perfectly working
Console.WriteLine(ii++);      // perfectly working  
	
}
}

 class itr 
{

int i =1; 
 public  void meth(){
   for (int a =0 ;  a<9 ; a++)
  Console.WriteLine(i++);
  }
}

o/p
the above code does compile to give an output of the previous
loop i.e., for the a<11 part
the lower loop is not taken into account --- why

The method meth is never invoked. The Main method is the entry point in the application and is invoked. You need to instantiate an object of itr, and invoke the meth method.

Hope this helps.

amigo1 · September 7th, 2012, 02:46 AM

Thank you teacher
How are you?
-- another thing --
in many forums I find that there are credit systems , for example a member who answers are either given credits( e.g.SDN)
or thank-you-marks for all the pains they go through to answer queries . I did not find this here -- if there is a link if you may please ,, i mean i may carry on the duties
regards
amigo1

ChristianNagel · September 7th, 2012, 07:45 AM

Quote:

Originally Posted by amigo1

-- another thing --
in many forums I find that there are credit systems , for example a member who answers are either given credits( e.g.SDN)
or thank-you-marks for all the pains they go through to answer queries . I did not find this here -- if there is a link if you may please ,, i mean i may carry on the duties
regards
amigo1

You can click the "Thanks" button in the lower right corner of the post that was the answer ;-)