(Java) Variable names must match pattern?

Question

import java.util.Scanner;

public class ComparingNumbers {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int FirstNum = Integer.valueOf(scanner.nextLine());
        int SecondNum = Integer.valueOf(scanner.nextLine());

        if (FirstNum > SecondNum) {

            System.out.println(FirstNum + " is greater than " + SecondNum + ".");
        } else if (FirstNum < SecondNum) {
            System.out.println(FirstNum + " is smaller than " + SecondNum + ".");
        } else {
            System.out.println(FirstNum + " is equal to " + SecondNum + ".");
        }
    }
}

Line 9: Name 'FirstNum' must match pattern '^[a-z][a-zA-Z0-9]$'.
Line 10: Name 'SecondNum' must match pattern '^[a-z][a-zA-Z0-9]$'.

What is the issue with my variable names?. I am a beginner so a simple answer will be greatly appreciated.

SKumar · Accepted Answer · 2020-10-04 16:29:22Z

1

Java variable names should be camelCase. Variable names should be firstNum and secondNum.

answered Oct 4, 2020 at 16:29

SKumar

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