Objective C String concatenation example

Well in any programming language this is considered one of important string manipulation functions and as simple as adding a plus sign between the two strings. Guess what its not that easy in Objective C, here is how to achieve string concatenation when using either NSString or NSMutableString classes.

#import <Foundation/Foundation.h>

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

    @autoreleasepool {
        
        NSString *sql_stmt = @"CREATE TABLE IF NOT EXISTS EMPLOYEES (";
        sql_stmt = [sql_stmt stringByAppendingString:@"id INTEGER PRIMARY KEY AUTOINCREMENT, "];
        sql_stmt = [sql_stmt stringByAppendingString:@"name TEXT, "];
        sql_stmt = [sql_stmt stringByAppendingString:@"department TEXT, "];
        sql_stmt = [sql_stmt stringByAppendingString:@"age TEXT)"];

        NSLog(@"%@",sql_stmt);
        
        
        NSMutableString *sql_stmt2 = [[NSMutableString alloc] initWithString:@"CREATE TABLE IF NOT EXISTS EMPLOYEES ("];
        [sql_stmt2 appendString:@"id INTEGER PRIMARY KEY AUTOINCREMENT, "];
        [sql_stmt2 appendString:@"name TEXT, "];
        [sql_stmt2 appendString:@"department TEXT, "];
        [sql_stmt2 appendString:@"age TEXT)"];
        
        NSLog(@"%@",sql_stmt2);
        
    }
    return 0;
}