A Bank Account Stimulation

import java.util.Scanner;
class BankAccount{
    static String name;
    static int type;
    static long balance;
    static double ac_no;
    static void assign(){
        name = "XYX ABC";
        type = 1;
        balance = 1000;
        ac_no = 432984123;
    }
    static long deposit(long n){
        return n+balance;
    }
    static long withdraw(long n){
        if(n>balance) System.out.println("The balance is too low.");
        else return balance - n;
        return balance;
    }
    static void display(){
        System.out.println("\tName\tBalance");
        System.out.print("\t"+name+"\t"+balance);
    }
    public static void main(String [] args){
        Scanner sc = new Scanner(System.in);
        assign();
        while(true){
            System.out.print("\n1.Deposit 2. Withdraw 3.View Details 4.Exit: ");
            int n = sc.nextInt();
            switch(n){
                case 1: System.out.print("Enter the amount to deposit: ");
                        balance = deposit(sc.nextLong());
                        break;
                case 2: System.out.print("Enter the amount to withdraw: ");
                        balance = withdraw(sc.nextLong());
                        break;
                case 3: display();
                        break;
                case 4: return;
            }
        }
    }
}