Short Answer 
The process involves generating a random 4-digit passcode by appending four random digits, then implementing a guessing mechanism that repeatedly generates new passcodes until it matches the original. Finally, it displays the correct passcode along with the number of attempts taken to guess it.
Step 1: Generate a Random Passcode
Start by creating a function to generate a random 4-digit passcode. This is done by iterating 4 times and appending a random digit (from 0 to 9) to a string. Use the Randomizer.nextInt(0, 9) method to obtain a random digit each time, ensuring the generated passcode is unique.
- Initialize an empty string for the passcode.
- Use a loop to add 4 random digits to the string.
- Return the completed passcode once the loop is finished.
Step 2: Guess the Passcode
Set up a guessing mechanism where your program repeatedly generates new random passcodes until it matches the originally generated secret passcode. Utilize a counter to track the number of attempts made during the guessing process.
- Initialize a counter variable to count the number of guesses.
- Within a loop, generate new passcodes and check if they match the correct one.
- Increment the counter each time a guess is made.
Step 3: Display Results
Once the correct passcode is guessed, display the correct passcode and the number of attempts it took to find it. Use the println function to show both results to the user, making it clear how many tries were required to guess the passcode correctly.
- Check if the current guess matches the correct code.
- If it does, print the correct passcode and number of attempts.
- Exit the guessing loop once the correct passcode is found.