One time pad, encryption and decryption

Question

I am trying to pick up cryptography and had been trying this exercise

Write a program (preferably Java) to generate a one-time pad, which is a relatively large file

Answer 1

    work.eddiejamsession
    jam-one-time-pad
    0.67

JamOneTimePad pad = new JamOneTimePad();
String heyEncrypted = pad.encrypt("hey"); //encodes additionally in base64 for url safety
String heyDecrypted = pad.decrypt(heyEncrypted);
System.out.println(heyDecrypted.equals("hey"));

Output: true