Which two statements are reserved words in Java？（）         

//point X 
public class foo （ 
public static void main （String[]args） throws Exception { 
printWriter out = new PrintWriter （new 
java.io.outputStreamWriter （System.out）， true； 
out.printIn（“Hello”）； 
} 
）  
Which statement at PointX on line 1 allows this code to compile and run？（）  

1. interface foo { 
2. int k = 0； 
3. }
4.   
5. public class test implements Foo （ 
6. public static void main（String args[]） （ 
7. int i； 
8. Test test = new test （）； 
9. i= test.k； 
10.i= Test.k； 
11.i= Foo.k； 
12.） 
13.） 
14.       
What is the result？（）  

1. public class enclosingone （ 
2. public class insideone{} 
3. ） 
4. public class inertest（ 
5. public static void main （string[]args）（ 
6. enclosingone eo= new enclosingone （）； 
7. //insert code here 
8. ） 
9. ）   
Which statement at line 7 constructs an instance of the inner class？（）