Creating a Object

Hi @[EMAIL PROTECTED]
'm new to Objective C and i tried to write a class and implement a
new Object but it does not work:

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Runtime.h->file:

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@[EMAIL PROTECTED]
 Runtime{

int *test;


}

-( void )sayHello;

@[EMAIL PROTECTED]
 -> file:

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#im****t "Runtime.h";
#im****t <stdio.h>;

@[EMAIL PROTECTED]
 Runtime{

}

-(void)sayHello{

	printf( "Hello my World !!!" );

}

@[EMAIL PROTECTED]
 -> file:

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#im****t "Runtime.m";


int main( int argc, const char *argv[] ){

	Runtime *r = [ Runtime alloc ];

	[ r sayHello ];

	return 0;

}

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When I try to compile the main file gcc -c main.m

i get this errors:

main.m: In function 'main':
main.m:6: warning: 'Runtime' may not respond to '+alloc'
main.m:6: warning: (Messages without a matching method signature
main.m:6: warning: will be assumed to return 'id' and accept
main.m:6: warning: '...' as arguments.)

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Can somebody help me please ?

THX a lot !

Frank

:-)