#import <objc/objc.h>
#import <objc/Object.h>
 
@interface Fraction: Object
{
    int numerator;
    int denominator;
}
-(Fraction*) initWithNumerator: (int) n denominator: (int) d;
-(void) print;
-(void) setNumerator: (int) n;
-(void) setNumerator: (int) n andDenominator: (int) d;
-(void) setDenominator: (int) d;
-(int) numerator;
-(int) denominator;
@end
 
@implementation Fraction

-(Fraction*) initWithNumerator: (int) n denominator: (int) d {
    self = [super init];

    if ( self ) {
        [self setNumerator: n andDenominator: d];
    }

    return self;
}

-(void) print {
    printf( "%i/%i", numerator, denominator );
}
 
-(void) setNumerator: (int) n {
    numerator = n;
}

-(void) setNumerator: (int) n andDenominator: (int) d {
    numerator = n;
    denominator = d;
}
 
-(void) setDenominator: (int) d {
    denominator = d;
}
 
-(int) denominator {
    return denominator;
}
 
-(int) numerator {
    return numerator;
}
 
 
int main()
{
    // create a new instance
    Fraction *frac = [[Fraction alloc] init];
    Fraction *frac2 = [[Fraction alloc] init];
    Fraction *frac3 = [[Fraction alloc] initWithNumerator: 3 denominator: 10];

    // set the values
    [frac setNumerator: 1];
    [frac setDenominator: 3];

    // combined set
    [frac2 setNumerator: 1 andDenominator: 5];

    // print it
    printf( "The fraction is: " );
    [frac print];
    printf( "\n" );

    printf( "Fraction 2 is: " );
    [frac2 print];
    printf( "\n" );

    printf( "Fraction 3 is: " );
    [frac3 print];
    printf( "\n" );
    return 0;
}
@end