Whats wrong with my code (from lection 2 Java)

Question

My code is :
import java.util.Scanner;

public class Main {

public static void main(String[] args) {

do {
Scanner scanner = new Scanner(System.in);
int eingabe = scanner.nextInt();

switch(eingabe){
case 1: System.out.println("Language selection");break;
case 2: System.out.println("Customer support");break;
case 3: System.out.println("Check the balance");break;
case 4: System.out.println("Check loan balance");break;
case 0: System.out.println("Exit");break;
}
}

while(eingabe != 0);

}
}

But I really dont Know what I did wrong there. It says me : Cannot find symbol when I wanna compile..

Answer 1

The variable "eingabe" is declared inside the do { } and thus not accessible outside it that is in the while(eingabe ...)

So declare eingabe as an integer before the do while loop .
[Always beware of the scope of variables]

Answer 2

Need to move the Scanner definition out of the do-while loop also

Scanner scanner = new Scanner(System.in); // move this out of do-while loop

Answer 3

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int eingabe =0;
eingabe = scanner.nextInt();
do {
switch(eingabe){
case 1: System.out.println("Language selection");break;
case 2: System.out.println("Customer support");break;
case 3: System.out.println("Check the balance");break;
case 4: System.out.println("Check loan balance");break;
case 0: System.out.println("Exit");break;
}
eingabe = scanner.nextInt();
}
while(eingabe != 0);
}
}

Answer 4

I solved it - thanks to all of you!

Answer 5

import java.util.Scanner;

public class Main {

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

switch(eingabe){

case 1: System.out.println("Language selection");break;
case 2: System.out.println("Customer support");break;
case 3: System.out.println("Check the balance");break;
case 4: System.out.println("Check loan balance");break;
case 0: System.out.println("Exit");break;
}
}
while(eingabe != 0);
}
}

I edited it now. But its still not working as intended , only when the initial inout is 0 its working.. :/