Java quiz. What happens when you try to compile and run this

What happens when you try to compile and run this code:


00: public class Test {
01:     public static void main(String[] args) {
02:         Object obj = new String("String object");
03:         String str = (String) new Object();
04:         System.out.println(obj);
05:         System.out.println(str);
06:     }
07: }

1. The code will compile and display something like the following:
String object
java.lang.Object@42e816
The code will compile, but during the launch the exception java.lang.ClassCastException will be thrown exception in the line 03.
The code will compile, but during the launch the exception will be thrown, it is impossible to deduce the value of the str variable it the line 05.
There will be a compilation error in line 03.
There will be a compilation error in line 05.

Explanation

The code will compile, but the exception java.lang.ClassCastException will be thrown in the line 03, as the Object type can not be converted to type String.