OTP Generator

A Java application that generates a secure 6-digit One-Time Password (OTP) using Java's built-in SecureRandom class.

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Features

• Generates a random 6-digit OTP
• Uses SecureRandom for cryptographically secure randomness
• Guarantees exactly six digits
• Lightweight console application
• Beginner-friendly Java project

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How It Works

The program creates a random number between 100000 and 999999, ensuring every generated OTP contains exactly six digits.

int otp = 100000 + new SecureRandom().nextInt(900000);

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Example Output

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Run the Project

Compile:

javac OtpGen.java

Run:

java OtpGen

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