Given:
1. public class TestString1 {
2. public static void main(String[] args) {
3. String str = “420”;
4. str += 42;
5. System.out.print(str);
6. }
7. }
What is the output?
A.
42
B.
420
C.
462
D.
42042
E.
Compilation fails.
F.
An exception is thrown at runtime.