As James delved deeper into the world of Java, he began to understand the intricacies of the code. He spent hours poring over lines of code, trying to decipher the cryptic messages.

One night, as he was studying, he stumbled upon a peculiar line of code:

`String encryptedMessage = "GUR PENML XRL VF ZL FRPERG CBFG";`

James's eyes widened as he realized that this might be the key to decrypting the message. He quickly opened his Java textbook and began to frantically search for a solution.

After hours of searching, he finally stumbled upon a Java method that could decrypt the message:

`String decryptedMessage = encryptedMessage.replaceAll("GUR", "THE");`

James's heart racing, he quickly wrote the code and ran it. And to his amazement, the decrypted message appeared on the screen:

`"THE SECRET KEY IS MY PUBLIC KEY"`

James's eyes widened as he realized that he was one step closer to catching the hacker. But he still had one more challenge to overcome...

To be continued.....