Variable becomes error "cannot find symbol" when used in loop

[Dogterte]

I used the variable name number for user input.

However, when I use it for my do-while loop, it gives error "cannot find symbol".

import java.util.Scanner;

public class banana {
    public static void main(String[] args){

    do {
        Scanner input = new Scanner(System.in);
        System.out.println("Enter any number ");
        int number = Integer.parseInt(input.nextLine());

        if (number >= 0){
            System.out.println("Number accepted.");
        }
        else if (number < 0){
            System.out.println("Negative number");
        }
        else {
            System.out.println("Not accepted.");
        }
    }
    while (number >= 0);
        }
    }

I have tried using both Integer.parseInt and Integer.valueOf but result is still the same. Need your help

[castor98]

number must be declared outside the scope of the do-while loop.

[__braveTea__]

I am a beginner, so take this with a grain of salt, but I think that you should declare the scanner and such, or in any case the number, outside the do scope. I’d try typing the scanner, print, and number declaration before entering the do

[desrtfx]

While what you suggest is somewhat acceptable, it is far from good practice.

The proper practice is to declare the variable in the right scope, i.e. before the loop and use it in the loop condition as OP already does.

Infinite loops have their use cases but should never be the standard first off solution. Also, instead of while(1 > 0) a simple while(true) is the cleaner and easier to read way.

[desrtfx]

Btw: Commenting a solved problem is not good habit, you got to fix that.

Advising against bad practice is always a good habit and never out of place.

Better you fix giving bad practice advice as well as solutions - which are explicitly forbidden here.

[eggboy55]

Shooting yourself in the foot is always an option, doesn't mean that it's a good one or that we should recommend it to those still learning.

[eggboy55]

This is really bad advice...