why cant the argument inside main method cannot be changed to int() in the given example snippet??

Answer 1

You can use int type whenever you declare a variable or parameter that will always receive only integer values. For example, int age;
Generally, you use int values inside your program, not with values that came from user input or command line. Ahead on the course you will probably see more examples.

Answer 2

How can I see the snippet? I don't see context.

Answer 3

//sorry for the inconvenience this is the snippet: class MyClass {

static void sayHello() {
System.out.println("Hello World!");
}

public static void main(String[ ] args) {
sayHello();
}
}

Answer 4

Which argument? If you're referring to String[], it is because Java demands main method to have this specific signature. Is that your doubt?

Answer 5

s

Answer 6

why cant the argument be int??

Answer 7

Because it is supposed to receive arguments from command line, that could be any string. So the type is to reflect a list of strings.

Answer 8

if so, then where can we use integer type??