How-to articles, tricks, and solutions about PROGRAM-ENTRY-POINT

The "no main manifest attribute" error is usually caused by a missing or incorrect Main-Class attribute in the manifest file of a Java .jar file.

In the main() method in Java, String args[] is an array of strings that holds the command-line arguments passed to the program.

"Could not find or load main class" is an error message shown when a Java program is run, but the main class cannot be found or loaded.

The special __name__ variable in Python is a string that contains the name of the current module. If the module is the main program, __name__ will be set to the string "__main__".

String args[] is a parameter in the main method of a Java program. It is an array of strings that can be used to pass command-line arguments to the program when it is executed.

In Java, the main method is declared as static because the JVM (Java Virtual Machine) needs to be able to invoke it without creating an instance of the class that contains it.