Thread: Redefine Intergers

Hi,
For my program (dunno if you'd call it a program really yet ) I want to create a 'Do you want to Continue sort of thing incorporating a while loop to redo it, but because the interger will already have been defined there's an error in compilation. How can I tell Java to redefine/overwrite the number so this'll work? This is the code.

import java.util.Scanner;
import java.io.File;
import java.io.IOException;
 
public class ChoiceofRandomNumberwithPeople
{
    public static void main(String[] args) throws IOException
    {
        Scanner r = new Scanner(System.in);
        Scanner l = new Scanner(System.in);
        Scanner p = new Scanner(System.in);
        Scanner q = new Scanner(System.in);
        System.out.println("Ok! Enter 4 People");
        String firstname = r.nextLine();
        String secondname = l.nextLine();
        String thirdname = p.nextLine();
        String fourthname = q.nextLine();
 
        int aNumber = 0;
        {
        int myRandom = (int) ((Math.random()) * 4);
        while (aNumber < 2)
 
        if((int)(myRandom) == 1)
        {
            System.out.println(firstname);  
            System.out.println("Do you want another Random Person?");
            int aNumber = r.nextInt();
        }
 
        if((int)(myRandom) == 2)
        {
            System.out.println(secondname);
            System.out.println("Do you want another Random Person?");
            int aNumber = r.nextInt();
        }
 
        if((int)(myRandom) == 3)
        {
            System.out.println(thirdname);
            System.out.println("Do you want another Random Person?");
            int aNumber = r.nextInt();
        }
 
        if((int)(myRandom) == 4)
        {
            System.out.println(fourthname);
            System.out.println("Do you want another Random Person?");
            int aNumber = r.nextInt();
        }
        }
    }
}

Thanks for your help.

here's an error in compilation.

Please copy and paste the full text of the error message here.

File: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java [line: 28]
Error: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java:28: aNumber is already defined in main(java.lang.String[])
File: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java [line: 35]
Error: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java:35: aNumber is already defined in main(java.lang.String[])
File: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java [line: 42]
Error: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java:42: aNumber is already defined in main(java.lang.String[])
File: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java [line: 49]
Error: C:\Users\Edmund Cox\Java Programming\Random\Choose Maximum Random Number\ChoiceofRandomNumberwithPeople.java:49: aNumber is already defined in main(java.lang.String[])

It's just saying it's already been defined.

Why do you want to define more than one variable with the same name?
Could you give a new name to the variables where the compiler is complaining?

Do you really want to define a new variable? Or do you want to assign a new value to an existing variable?
Do you know the difference between
defining a variable: <datatype> <variable name> ...
and using an existing variable: <variable name> = ....

Ok. I just removed "int" like you said and it works. Thanks.

Some comments on your code:
if((int)(myRandom) == 1)
You don't need to cast an int: if(myRandom == 1)

You could use one Scanner here instead of 4:

        Scanner aScanner = new Scanner(System.in);
        System.out.println("Ok! Enter 4 People");
        String firstname = aScanner.nextLine();
        String secondname =aScanner.nextLine();
        String thirdname = aScanner.nextLine();
        String fourthname = aScanner.nextLine();