i got a null output even if i enter some input why??

package mybank;
import java.util.Scanner;
public class Mybank {
String name;
String accountno;
String customerid;
double withdrawal;
double deposit;
double balance;
public void printdetails(){
System.out.println("Account holder name: "+name);
System.out.println("Acount holder accountno: "+accountno);
System.out.println("Account holder customerid: "+customerid);
System.out.println("Account holder balance: "+balance);
}

public static void main(String[] args) {
String name;
String accountno;
String customerid;
double withdrawal;
double deposit;
double balance;
Scanner s=new Scanner(System.in);
name=s.nextLine();
accountno=s.nextLine();
customerid=s.nextLine();
balance=s.nextDouble();
Mybank b=new Mybank();
b.printdetails();
}

}

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