Strings, Objective-C

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//gcc 5.0.4

#import<Foundation/Foundation.h>
@interface SampleClass:NSObject
{
}
+(void)stringMethod;
@end
@implementation SampleClass
+(void)stringMethod
{
NSString *str=@"Raju";
NSLog(@"String is: %@",str);
NSString *name=[str stringByAppendingString:@"kesava"];
NSLog(@"name is:%@",name);
NSUInteger len=[name length];
NSLog(@"name length is:%lu",len);
if ([name isEqualToString:name])
{
NSLog(@"Both are same");
}
else 
{
   NSLog(@" Both are not same");
}
if ([name hasPrefix:@"kesava"])
{
NSLog(@"The given string starts with:%@",str);
}
else
{
NSLog(@"The given string not starts with:%@",str);
}
if ([name hasSuffix:@"Raju"])
{
NSLog(@"The given string ends with same:%@",name );
}
else
{
   NSLog(@"The given string not ends with same:%@",str);
}
NSString *strobj=@"10";
NSLog(@"string is:%@",strobj);
int strInt=[strobj intValue];       
NSLog(@" string to integer:%d",strInt);
NSString *intstr=[NSString stringWithFormat:@"%d",strInt];
NSLog(@"Integer to string:%@",intstr);
NSString *upperstr=[name uppercaseString];
NSLog(@" uppercase format is :%@",upperstr);
NSString *lowerstr=[name lowercaseString];
NSLog(@"Lowercae format is:%@",lowerstr);
}
@end
int main(int argc, const char * argv[])
{
 NSAutoreleasePool *pool=[[NSAutoreleasePool alloc]init]; 
 [SampleClass stringMethod];
 return 0;
}

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Compilation time: 0.22 sec, absolute running time: 0.14 sec, cpu time: 0.03 sec, memory peak: 9 Mb, absolute service time: 0,37 sec