working with different file

 

we are going to use three different file

 

Fraction.h for creating interface

Fraction.m for creating implementation

FractionTest.m  contain main method to implement the Fraction interface

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Fraction.m

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//
// Fraction.h
// FractionTest
//
// Created by Steve Kochan on 7/5/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import <Foundation/Foundation.h>
// The Fraction class
@interface Fraction : NSObject
{
int numerator;
int denominator;
}
-(void) print;
-(void) setNumerator: (int) n;
-(void) setDenominator: (int) d;
-(int) numerator;
-(int) denominator;
-(double) convertToNum;
@end

 

 

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fraction.m

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//
// Fraction.m
// FractionTest
//
// Created by Steve Kochan on 7/5/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//

#import "Fraction.h"

@implementation Fraction
-(void) print
{
NSLog (@"%i/%i", numerator, denominator);
}
-(void) setNumerator: (int) n
{
numerator = n;
}
-(void) setDenominator: (int) d
{
denominator = d;
}
-(int) numerator
{
return numerator;
}
-(int) denominator
{
return denominator;
}
-(double) convertToNum
{

if (denominator != 0)
return (double) numerator / denominator;
else
return 1.0;
}
@end

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FractionTest.m

#import "fraction.h"
int main (int argc, char *argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
Fraction *myFraction = [[Fraction alloc] init];
// set fraction to 1/3
[myFraction setNumerator: 1];
[myFraction setDenominator: 3];
// display the fraction
NSLog (@"The value of myFraction is:");
[myFraction print];
[myFraction release];
[pool drain];
return 0;
}

 

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GNUmakefile

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include $(GNUSTEP_MAKEFILES)/common.make
TOOL_NAME = LogTest
LogTest_OBJC_FILES = Fraction.m  FractionTest.m
include $(GNUSTEP_MAKEFILES)/tool.make

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//to run in MAC Ox

gcc –framework Foundation Fraction.m FractionTest.m –o FractionTest

***************************************************************************

 

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