What is the signature of a main method in Java?

public static void main(String a[]) is the main entry point signature for a typical Java program. So you should get on with this method signature. Java Runtime tries to find a method with name "main" with argument types "String[]". ... You need exactly the String[] args parameter (it's an array).Nov 28, 2012 read more

The reason is that you need to declare the main() method with a specified signature (and a method signature contains its name, number of its parameters and the types of the parameters). So if you create a function which a different parameter type (String vs. String array), it is not recognized. read more

Main method in java doesn't return anything and has return type void while main method in C and ++ return int. That's all on What is main method in Java, What are valid signature of main method in Java, What happens if you put incorrect signature of main method, Why main method is public, static, and void in Java and finally we saw difference between C, C++ and Java main methods. read more

public static void main(String [] args) – this is the signature of the main method in Java. ‘ public ’ access specifier means that the method can be called from outside. read more