GIGO: words unreadable aloud

Chapter 4, Exercise 14

Bruce asks us to "Create a class containing an int and a char that are not initialized, and print their values to verify that Java performs default initialization."

But Scala requires that initialization to be a bit more explicit:

Try 1: val i : Int; gets this error message: class c4x14c needs to be abstract, since value i in class c4x14c is not defined.

Try 2: var i : Int; gets class c4x14c needs to be abstract, since variable i in class c4x14c is not defined ... (Note that variables need to be initialized to be defined).

Try 3 worked. The default value ("_") for Char appears to be zero, the NUL character.

package x;
class c4x14c {
    var i : Int = _;
    var ch : Char = _;
};
object c4x14 {
    def main ( args: Array[String] ) = {
        val ob = new c4x14c;
        val obich : Int = ob.ch;
        Console.println( "ob.i " + ob.i );
        Console.println( "ob.ch [" + ob.ch + "] (or, as Int, " + 
            obich + ")." );
    }
}

11:55:17 PM comment/