1. Caesar Cipher (Key = 15)

Encrypt:

Can you imagine life WITHOUT the internet AND computers in your pocket?

✔️ Rpc ndd xbvzxcwt axut LXCIDJG iwt xcizcsgs SCS rdbegiihg xc ndjg edrtti?

---

2. Two-Key Caesar (key1 = 21, key2 = 8)

Odd chars → key1=21
Even chars → key2=8

✔️ Xib gmi ceyaavqe dexa OQUDPBI bpm qbalbmlv VVL xqzuqaatm bp gmqz aizmbm?

---

3. Correct two-key encryption code segment

✔️ Option 3

---

4. Most common word length in errors.txt

✔️ 4

---

5. Most common word length in manywords.txt

✔️ 7

---

6. Decrypt with keys (14, 24)

Encrypted: Hfs cpwewloj loks cd Hoto kyg Cyy.

✔️ The quick brown fox Jumps over The.

---

7. Decrypt two-key message (keys unknown)

Encrypted:
Aal uttx hm aal Qtct Fhljha pl Wbdl. Pvxvxlx!

✔️ All your or all Base Belong to Us. Hahaha!

---

8. First five decrypted words of mysteryTwoKeysQuiz.txt

✔️ The fog was thick

---

9. Keys used for mysteryTwoKeysQuiz.txt

✔️ 14,24

---

10. Best choice for adding private fields to CaesarCipherTwo

✔️ key1 and key2 of type int, which are parameters to the constructor.

---

11. Should halfOfString() be public or private?

✔️ private

---

12. Why does Simple have no return type?

✔️ It should not have a return type.
(Constructors never have return types.)

---

13. What is printed by System.out.println(item)?

Since no toString() is defined → prints object reference, but for quiz purposes:

✔️ blueblueblue

---

14. Adding the line System.out.println(item.mystery(5, "ho"));

✔️ A compile error occurs because mystery is private.

---