立方体练习

Objective-c

//  Cube.h
//  setter和getter
//
//  Created by Aaron on 15/5/18.
//  Copyright (c) 2015年 Aaron. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface Cube : NSObject
{
    int _length;
    int _width;
    int _height;
}
-(void)setLength:(int)length;
-(void)setWidth:(int)width;
-(void)setHeight:(int)height;
-(int)tiJi;
@end

//  Cube.m
//  setter和getter
//
//  Created by Aaron on 15/5/18.
//  Copyright (c) 2015年 Aaron. All rights reserved.
//
#import "Cube.h"
@implementation Cube
-(void)setLength:(int)length
{
    _length = length;
}
-(void)setWidth:(int)width
{
    _width = width;
}
-(void)setHeight:(int)height
{
    _height = height;
}
-(int)tiJi
{
    return _length*_width*_height;
}
@end

//  main.m
//  立方体练习
//
//  Created by Aaron on 15/5/18.
//  Copyright (c) 2015年 Aaron. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Cube.h"
/*
 创建两个立方体对象,长宽高分别为4,5,6和7,8,9,求体积各是多少?
 */
int main(int argc, const char * argv[])
{
    @autoreleasepool {
        Cube *cub1 = [Cube alloc];
        [cub1 setLength:5];
        [cub1 setWidth:6];
        [cub1 setHeight:7];
        NSLog(@"%d",[cub1 tiJi]);
    }
    return 0;
}