如何使用NetBeans中另一种方法的用户输入？

Question

I'm trying to get the user input from the method Salary so I can use it in TaxCheck. Also if possible I would also like to add a new value named total salary which is the equivalent of

input user - corresponding deduction = total salary

public static double Salary() throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    System.out.print("Input a salary: ");
    double inputS = Double.parseDouble(br.readLine());
    return inputS;
}

public static void TaxCheck() throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    double inputS = Salary();
    double salary = Double.parseDouble(br.readLine());
    double salary1 = 15000.00;
    double salary2 = 20000.00;
    double salary3 = 25000.00;
    double salary4 = 30000.00;
    double salary5 = 35000.00;
    double deduction3 =  634.57;
    double deduction4 = 1624.57;
    double deduction5 = 2655.72;
    if (inputS>=salary5) {
        System.out.println("Rate Deduction: "+deduction5+"");
    }
    if (inputS>=salary4) {
        System.out.println("Rate Deduction: "+deduction4+"");
    }
    if (inputS>=salary3) {
        System.out.println("Rate Deduction: "+deduction3+"");
    } else {
        System.out.println("This salary does not have a deduction");
    }
}

Answer 1

You pass the input/variable into another function by sending it as a argument.

See this line of code

 TaxCheck(inputS);

After sending it, you receive it into the other function by this line of code

 TaxCheck(Double salary)

In that function, the first input will be accessible by the variable name salary.

 public static void main(String[] args) {
            try{
             Salary();
            }catch(IOException e){
               e.printStackTrace();
            }
        }



public static void Salary()throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
        System.out.print("Input a salary: ");
        double inputS = Double.parseDouble(br.readLine());
        TaxCheck(inputS);
}


private static void TaxCheck(Double salary)throws IOException{
        double totalSalary = salary;
        double salary1 = 15000.00;
        double salary2 = 20000.00;
        double salary3 = 25000.00;
        double salary4 = 30000.00;
        double salary5 = 35000.00;
        double deduction3 =  634.57;
        double deduction4 = 1624.57;
        double deduction5 = 2655.72;
        if (salary>=salary5){
            System.out.println("Rate Deduction: "+deduction5+"");
            totalSalary = totalSalary - deduction5;
        }
        if (salary>=salary4){
            System.out.println("Rate Deduction: "+deduction4+"");
            totalSalary = totalSalary - deduction4;
        }
        if (salary>=salary3){
            System.out.println("Rate Deduction: "+deduction3+"");
            totalSalary = totalSalary - deduction3;
        }
        else {
            System.out.println("This salary does not have a deduction");
        }
        System.out.println("Total Salary = "+totalSalary);
   }

You pass the input of one function to another function as an argument. I'd suggest you to learn about passing arguments from one function to another in java. Hope i helped.