Question

I was trying out a sample thread program from google and i am getting a runtime exception.

Is there any website that gives an example of how to use runloops along with threads.
I need to set two events and spawn a thread and to do another function parallely.

// Runner.m

#import "Runner.h"

@implementation Runner

    - (void)rumMe:(id)ignored {

        NSLog(@"Running with threads!!");
    }

@end

// Runner.h

@interface Runner : NSObject

    -(void)rumMe:(id)ignored;

@end

// Thread1.m

#import <Foundation/Foundation.h>
#import "Runner.h"

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

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    Runner* runner = [Runner new]; 
    [NSThread detachNewThreadSelector:@selector(runMe:) toTarget:runner withObject:nil];
    [pool drain];
    return 0;
}

Runtime Exception:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** 
-[NSThread initWithTarget:selector:object:]: target does not implement selector (*** 
-[Runner runMe:])'

Answer 1

First part: you had a typo

// method declaration
rumMe:   with an _m_
// call
runMe:   with an _n_

Second part: your main function is returning and causing the program to exit before you have given the thread a chance to do anything. In this simple simple example, you could simply

sleep(2);

right after the call to detachNewThreadSelector:

In more complex cases, you might need to make a call to CFRunLoopRun(); on the main thread, or take other action to keep the second thread alive.