What is the result of the following code?

2: String s1 = "java";
3: StringBuilder s2 = new StringBuilder("java");
4: if (s1 == s2)
5: System.out.print("1");
6: if (s1.equals(s2))
7: System.out.print("2");

❌ A. 1
❌ B. 2
❌ C. 12
❌ D. No output is printed.
❌ E. An exception is thrown.
✅ F. The code does not compile

Explanation:
The question is trying to distract you into paying attention to logical equality versus object reference equality. It is hoping you will miss the fact that line 4 does not compile. Java does not allow you to compare String and StringBuilder using ==.