ผมทำโค้ดนี้ขึ้นมาแล้ว  คอมไพล์ได้ รันได้  แต่เวลาให้กรอกมันบอกให้กรอก2 ครั้ง ในเมื่อผมเขียนแค่ครั้งเดียว

import java.util.Scanner;
public class TAX {
    public static void main(String[] args) {        
        Scanner sc = new Scanner(System.in);        
        System.out.print("Please Input your salary : ");        
        int salary = sc.nextInt();
        float tax = sc.nextFloat();
        System.out.println("YOUR HAVE SALARY: "+salary);
        if(salary <=100000){
        tax=(salary*5)/100;
        System.out.print("Your tax is :"+tax+"bath");
        }
        else if (salary>=100001 & salary<=500000){
        tax=((salary)*10/100);
        System.out.print("Your tax is :"+tax+"bath");
        }
        else if (salary>=500001 & salary<=1000000){
        tax=((salary)*20/100);
        System.out.print("Your tax is :"+tax+"bath");
        }
        else if (salary>=1000001 & salary<=4000000){
        tax=(salary)*30/100;
        System.out.print("Your tax is :"+tax+"bath");
        }
        else if (salary>4000001){
        tax=(salary)*30/100;
        System.out.print("Your tax is :"+tax+"bath");
        }
    }
}