Given:
1. public class KungFu {
2. public static void main(String[] args) {
3. Integer x = 400;
4. Integer y = x;
5. x++;
6. StringBuilder sb1 = new StringBuilder(“123”);
7. StringBuilder sb2 = sb1;
8. sb1.append(“5”);
9. System.out.println((x==y) + ” ” + (sb1==sb2));
10. }
11. }
What is the result?
A.
true true
B.
false true
C.
true false
D.
false false
E.
Compilation fails.
F.
An exception is thrown at runtime.