main-method

I have decided to load my views programmatically, so putting: int ret = UIApplicationMain(argc, argv, nil, nil); Would not work. I do have a ViewController and an AppDelegate, though. What would be the proper use of UIApplicationMain to use a ViewController and an AppDelegate. PS I am NOT using XCode or Interface Builder, I am developing on the toolchain. This function is declared as int UIApplicationMain ( int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName ); Since you did not subclass UIApplication, pass nil to the 3rd argument. But you have a custom

In python, a module doesn't have to have a main function, but it is common practice to use the following idiom: def my_main_function(): ... # some code if __name__=="__main__": # program's entry point my_main_function() I know Ruby doesn't have to have a main method either, but is there some sort of best practice I should follow? Should I name my method main or something? The Wikipedia page about main methods doesn't really help me. As a side-note, I have also seen the following idiom in python: def my_main_function(args=[]): ... # some code if __name__=="__main__": # program's entry point

I'm new to Ruby, so apologies if this sounds really silly. I can't seem to figure out how to write a "main" code and have methods in the same file (similar to C). I end up with a "main" file which loads a seperate file that has all the methods. I appreciate any guidance on this. I spotted the following SO post but I don't understand it: Should I define a main method in my ruby scripts? While it's not a big deal, it's just easier being able to see all the relevant code in the same file. Thank you. [-EDIT-] Thanks to everyone who responded - turns out you just need to define all the methods

The header for the main method is public static void main (String[] args) Could you technically replace "args" with anything you want? Also, why is the parameter an array? ΦXocę 웃 Пepeúpa ツ args is just a name for the argument in a method. You can rename it to whatever you want. The JVM doesn't need to know what the argument is named ; only the type , String[] , is important. dont break the start point of the app static void main(String[] whateverYouNeed) You can rename it to any proper Java identifier. The application needs to be able to accept multiple command-line arguments. It doesn't

class NewClass{ public static void main(String a){ System.out.print("Hello"); } } When I'm trying to execute above code, then it shows an error, main method not found . But when I changed public static void main(String a) to public static void main(String... a) or public static void main(String a[]) . Then, it works..!! So, My question is how many different ways we can write legal main method signature and what this signature public static void main(String... a) means ? Simply because that's the requirement of Java. A main method/entry point to a program must be a method declared as public

During development (and for debugging) it is very useful to run a Java class' public static void main(String[] argv) method directly from inside Eclipse (using the Run As context menu). Is there a similarily quick way to specify command line parameters for the run? What I do now is go to the "Run Dialog", click through the various settings to the tab where I can specify VM and program arguments and enter them there. Too many steps, plus I do not want to mix the more permanent runtime configuration settings with the one-off invokation parameters. What I want instead is to check a box somewhere

This question already has an answer here: Pass arguments into C program from command line 6 answers I don't know what to do! I have a great understanding of C basics. Structures, file IO, strings, etc. Everything but CLA. For some reason I cant grasp the concept. Any suggestions, help, or advice. PS I am a linux user The signature of main is: int main(int argc, char **argv); argc refers to the number of command line arguments passed in, which includes the actual name of the program, as invoked by the user. argv contains the actual arguments, starting with index 1. Index 0 is the program name.