legal main method signature in java

Question

class NewClass{
public static void main(String a){
    System.out.print(\"Hello\");
}
}

When I\'m trying to execute above code, then it shows an er

Answer 1

You need exactly the String[] args parameter (it's an array).

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.