NSString* string= @"Some String";

NSData* data=[string dataUsingEncoding:NSUTF8StringEncoding];

-(NSString *)getStringfromDate:(NSDate *)date{

if (!dateFormatter) {

dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateFormat:@"dd-MMM-yyyy"];

}

return [[dateFormatter stringFromDate:date] uppercaseString];

}