The problem with the Application trait is actually described in its documentation: (1) Threaded code that references the object will block until static initialization is complete. However, because the entire execution of an object extending Application takes place during static initialization, concurrent code will always deadlock if it must synchronize with the enclosing object. This …
It’s a linker setting: -Wl,-eentry the -Wl,… thing passes arguments to the linker, and the linker takes a -e argument to set the entry function
Here’s what the C standard (n1256) says: 5.1.2.2.1 Program startup… 2 If they are declared, the parameters to the main function shall obey the following constraints: The value of argc shall be nonnegative. argv[argc] shall be a null pointer. If the value of argc is greater than zero, the array members argv[0] through argv[argc-1] inclusive …
ยง3.6.1/2 (C++03) says An implementation shall not predefine the main function. This function shall not be overloaded. It shall have a return type of type int, but otherwise its type is implementation-defined. All implementations shall allow both of the following definitions of main: int main() { /* … */ } int main(int argc, char* argv[]) …
No you cannot unless you are writing a program in a freestanding environment (embedded environment OS kernel etc.) where the starting point need not be main(). As per the C++ standard main() is the starting point of any program in a hosted environment. As per the: C++03 standard 3.6.1 Main function 1 A program shall …
Here you go: new java.io.File(SomeClassInYourJar.class.getProtectionDomain() .getCodeSource() .getLocation() .getPath()) .getName() Edit: I saw your comment about getSourceCode API. Well, this is probably the best you can do in Java. About getCodeSource() returning null, I think it mainly happens on classes in java.lang.* and other special classes for which the source location is “hidden”. Should work for …
Here you can see that there are 2 public static void main (String args[]) in a single file with the name Test.java (specifically didn’t use the name of file as either of the 2 classes names) and the 2 classes are with the default access specifier. class Sum { int add(int a, int b) { …
The overwhelming majority of the time, one of int main(void) or int main(int argc, char* argv[]) is what you need to use. In particular, if you’re writing a program that’s going to be compiled by any major compiler for running on a personal computer, with the full set of the C standard libraries, then you …
To answer your question, have a look on the following : I made a scala class, compiled and decompiled it, and what I got is interesting. class MyScalaClass{ def main(args: Array[String]): Unit = { println(“Hello from main of class”) } } Compiled from “MyScalaClass.scala” public class MyScalaClass { public void main(java.lang.String[]); public MyScalaClass(); } So …