Java 我的代码中关于调用if语句中的单元的未知错误

在我的程序中，它会要求您输入一个值，该值会给您相应的扣减，但我的代码一直给我相同的输出，即“费率扣减：634.57” 即使它应该给我更高的扣减额“扣减率：1624.57”或“扣减率：2655.72”

我为我生疏的英语道歉，但非常感谢你能帮助我

    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        Cp11bTaxActivityKedawenJ jr = new Cp11bTaxActivityKedawenJ();
        headerdisplay();
    }

    public static void headerdisplay() throws IOException
    {
        System.out.println("Monthly Salary Tax Checker");
        Name();
        try
        {
            Salary();
        } catch (IOException e) {
        }

        System.out.println("==============================================================");  
    }

    public static String Name() throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String inputN;
        System.out.print("Input a name: ");
        inputN = br.readLine();
        return inputN;
    }

    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());
        TaxCheck(inputS);
        return 0;
    }

    public static void TaxCheck(Double salary) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
        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 >= salary3)
        {
            System.out.println("Rate Deduction: " + deduction3 + "");
            totalSalary = totalSalary - deduction3;
            System.out.println("Total salary: " + totalSalary + "");
        } else {
            System.out.println("This salary does not have a deduction");
            System.out.println("Total salary: "+totalSalary+"");
        }

        again();

        if (salary >= salary4)
        {
            System.out.println("Rate Deduction: " + deduction4 + "");
            totalSalary = totalSalary - deduction4;
            System.out.println("Total salary: " + totalSalary + "");
        } else {
            System.out.println("This salary does not have a deduction");
            System.out.println("Total salary: " + totalSalary + "");
        }

        again();

        if (salary >= salary5)
        {
            System.out.println("Rate Deduction: " + deduction5 + "");
            totalSalary = totalSalary - deduction5;    
            System.out.println("Total salary: " + totalSalary + "");
        } else {
            System.out.println("This salary does not have a deduction");
            System.out.println("Total salary: " + totalSalary + "");
        }

        again();
    }

    public static void again() throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Would you like to try again?:\n [Y] for Yes  [N] for No");
        String choice = br.readLine();
        if (choice.equals("Y"))
        {
            headerdisplay();
        }

        if (choice.equals("N"))
        {
            System.out.println("Thank you for using me! (^_^) Goodbye");
        }
    }
}

---

对于检查薪资4和薪资5的if块，无法访问该代码，因为在检查薪资3的if块之后再次调用

（

）

再次调用

方法（）

方法，仅在

TaxCheck（）方法的末尾调用，如下所示

此外，您应该将薪资检查的顺序从高到低，即从薪资5更改为薪资3。
我是新来的，因此，如果此问题/帖子太长，或者如果我将整个代码粘贴到此处是不好的，粘贴整个代码比给我们不完整的图片要好。代码不在类中，我再次表示歉意。你没有发布整个课程。这将不会编译为已发布。我想是工资的问题。您没有遵循Java编码标准。由于样式的原因，您的代码很难阅读。您可以简化文本用户界面。空的捕捉块是一个非常糟糕的主意。如果发生什么事你都不知道。打印堆栈跟踪。如前所述，即使我输入35000，它仍然会给我相等的扣减，就像我输入25000一样。我更改我的答案，你需要颠倒顺序，如果（薪水>=薪水5）必须是第一位，依此类推
public static void main(String[] args)throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    //Cp11bTaxActivityKedawenJ jr = new Cp11bTaxActivityKedawenJ ();
    headerdisplay();
}
public static void headerdisplay () throws IOException{

    System.out.println("Monthly Salary Tax Checker");
    Name();
    try{
        Salary();
    }catch(IOException e){
    }
    System.out.println("==============================================================");
}
public static String Name()throws IOException{
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String inputN;
    System.out.print("Input a name: ");
    inputN= br.readLine();
    return inputN;
}
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());
    TaxCheck (inputS);
    return 0;
}
public static void TaxCheck(Double salary)throws IOException{
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    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;
        System.out.println("Total salary: "+totalSalary+"");
    }
    else if (salary>=salary4){
        System.out.println("Rate Deduction: "+deduction4+"");
        totalSalary = totalSalary - deduction4;
        System.out.println("Total salary: "+totalSalary+"");
    }
    else if (salary>=salary3){
        System.out.println("Rate Deduction: "+deduction3+"");
        totalSalary = totalSalary - deduction3;
        System.out.println("Total salary: "+totalSalary+"");
    }
    else {
        System.out.println("This salary does not have a deduction");
        System.out.println("Total salary: "+totalSalary+"");
    }

    again();
}
public static void again() throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Would you like to try again?:\n [Y] for Yes  [N] for No");
    String choice = br.readLine();
    if (choice.equals("Y")){
        headerdisplay();
    }
    if (choice.equals("N")){
        System.out.println("Thank you for using me! (^_^) Goodbye");
    }
}