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Shaun Kelly
5,648 PointsNo visible @interface for 'Sphere' declares the selector 'setRadius:'
In my main call is says No visible @interface for 'Sphere' declares the selector 'setRadius:' No visible @'interface for 'Sphere' declares the selector 'radius'
This is my code for each class
Main :
import "Sphere.h"
int main() { Sphere *ball = [[Sphere alloc] init];
[ball setRadius:25];
NSLog(@"ball radius %f", [ball radius]);
return 0;
}
Sphere.h:
@interface Sphere : NSObject {
NSArray *_center;
float _radius;
} -(void)setradius:(float)radius; -(float)_radius;
-(void)setcenter:(NSArray *)center; -(NSArray *)_center; @end
Sphere.m
@implementation Sphere
-(void)setradius:(float)radius { _radius = radius; } -(float)_radius { return _radius; }
-(void)setcenter:(NSArray *)center { _center = center; } -(NSArray *)_center { return _center; } @end
3 Answers
Rami Ammoun
7,468 Pointsyour Sphere.h code had 3 errors:
please copy paste this code and compare with your existing code:
@interface Sphere : NSObject {
NSArray *_center;
float _radius;
}
-(void)setRadius:(float)radius;
-(float)radius;
-(void)setCenter:(NSArray *)center;
-(NSArray *)_center;
@end
This should work. Let me know if u need further help
Shaun Kelly
5,648 PointsHow do you get all the code in the black box ?
Rami Ammoun
7,468 PointsClick on the Markdown Cheatsheet. It will show you tips to format your discussion. For wrapping the code in blackbox it says the following:
Wrap your code with 3 backticks (```) on the line before and after. If you specify the language after the first set of backticks, that'll help us with syntax highlighting.
```html
<p>This is code!</p>
```
I hope his helps.
Shaun Kelly
5,648 PointsHow will I type that in a mac computer ?
Rami Ammoun
7,468 PointsTo the right of this screen, there is a video under the title: Tips for asking questions. Click on it, it will explain how.