Programming in Objective-C 2 0 edition phần 3 pdf

... count. In the statementNSMutableString *myStr3 = [NSMutableString stringWithString: @”string 3 ];the variable myStr3 is set to a string made from a copy of the constant character string@”string 3 .A ... alloc] init];Fraction *f1 = [[Fraction alloc] init];Fraction *f2;[f1 setTo: 2 over: 5];f2 = [f1 copy];[f2 setTo: 1 over: 3] ;[f1 print];[f2 print];[f1 release];[f2 release];[pool drain];return ... ePool.h>int main (int argc, char *argv[]){NSString *aName = @”Julia Kochan”;NSString *aEmail = @”jewls 337 @axlc.com”;NSString *bName = @”Tony Iannino”;NSString *bEmail = @”tony.iannino@techfitness.com”;NSString...

... http://www.simpopdf.com467Your First iPhone ApplicationDesigning the Interface In Figure 21 .4, and in your Xcode main window, notice a file called MainWindow.xib.Anxib file contains all the information ... can use for your interface.This window is depicted in Figure 21 .6 in one of its display formats.TheMainWindow.xib window (Figure 21 .7) is the controlling window for establishingconnections ... of 10 by which the value preceding the letter e (themantissa) is multiplied (for example,1.5e -2 represents 1.5 × 10 -2 or .01 5).A hexadecimal floating constant consists of a leading 0x or 0X,...