私人 Setter 说 setter 方法是 "not used"

Question

我正在编写一个程序，为员工收集用户输入。我有一些私有 setter（根据 UML，它们必须是私有的）但是方法名称带有灰色下划线。我试过制作 getter 或做 this.variableName 来摆脱它们，但老实说，我对私有 setter 没有太多经验，所以我不确定该怎么做。此外，某些变量没有吸气剂，也没有默认构造函数，如 UML 中所示。

UML:

这是我的代码

public class Employee_Kubik {
    
    //variables
    private static String name;
    private double salary;
    private int yearsWith;
    private double sales;
    
    public Employee_Kubik(String n, double sala, int y, double sale){
        name = n;
        salary = sala;
        yearsWith = y;
        sales = sale;
    } //Employee end
    
    public String getName(){
        return name;
    } //getName end
    
    private void setSalary(double s){
        if (s > 0){
            salary = s;
        } //if end
        else{
            salary = 0;
        } //else end
    } //setSalary end
    
    private void setYearsWith(int yw){
        if (yw > 0){
            yearsWith = yw;
        } //if end
        else{
           yearsWith = 0;  
        } //else end
    } //setYearsWith
    
    private void setSales(double s){
        if(s > 0){
            sales = s;
        } //if end
        else{
            sales = 0;
        } //else end
    } //setSales end
    
    public boolean promote(){
        if(sales > 9999 && yearsWith > 2){
            return true;
        } //if end
        else{
            return false;
        } //else end
    } //promote end
    
    public double calculateRaise(){
        salary = salary * 0.05;
        
        return salary;
    } //calculateRaise end
    
    @Override
    public String toString(){
        return "Employee Name: " +
                name +
                ", has been with the company for " +
                yearsWith +
                " years and last year sold a total of $" +
                sales +
                "\nPromotion Status = " +
                promote();
    } //toString end
    
} //class end

Answer 1

您可以在其中使用它们的一个地方是您的构造函数：

public Employee_Kubik(String n, double sala, int y, double sale){
    name = n;
    setSalary(sala);
    setSales(sale);
    setYearsWith(y);
}

私人 Setter 说 setter 方法是 "not used"

Private Setter saying setter method is "not used"

java

private

setter