Hi,

I'v started with java.

Recently I'v written a print method ;

public class P{

public static void print(String wrd){
System.out.println(wrd);
}
}

I've used it by mistake in a P.print("hello" + f) where f is a float and it worked.

I tried with more ... + ... + ... in the () & it was ok too.

I don't understand why. "hello" + f is not a string input for the print() method.

I replaced the String by String[] in the print method input declaration and it doesn't work. (i thought String[] was the most general entry form as it is used in
the main method).

Can someone explain me why?

thanks.

When you give a string + any data type ( like "test" + float or "one" + int ), java will automatically convert the other data type and concatenate it into the string!

This is one of the advantages in Java. And String[] points to an array and will only work if you pass an array, instead of a single String!