Question

有人可以帮助我修复下面所附的代码吗？我已经编写了一个Java方法，该方法按姓氏雇用一个人，我的意思是该方法中传递的值应该是对象引用的姓（我们为类Employee的对象）希望在公司聘用）。

但是，程序抱怨说姓氏不能解析为类型。现在，getSurname()是在Employee中定义的私有实例变量的方法，该变量是一个抽象类（以及两个子类Worker和Officer的超类，但这与问题）。有人愿意帮我吗？

public class CompanyArrayList {

    private ArrayList<Employee> arrayList;

    public CompanyArrayList(int employeeNumber) {
        ArrayList<Employee> arrayList = new ArrayList<Employee>(employeeNumber);
    }
    public String hire(Employee employee.getSurname()) { // the object of this class will be generated in the "main" method.
        for (int i = 0; i < employeeNumber; i++) {
            if (!arrayList.contains(employee.getSurname())) {
                arrayList.add(employee);
                return "Hired"; // "return" terminates the execution of the method.
            }
        } // WHY?
    }

    public String fire(Employee employee) {
        for (Employee i : arrayList) {
            if (employee.getSurname().equals(i.getSurname())) {
                arrayList.remove(employee);
                return "Fired"; // returns nothing and terminates the method execution.
            }
        }
        return "The person of the" + employee.getSurname() + " surname doesn't work in the company";
    }
} 

public abstract class Employee { 

    private String surname; 

    private float contract; // contract = workperiod

    public String getSurname() { // Here we're asking about a surname of an employee
        return surname;
    }

    public float getContract() {
        return contract;
    }

    public Employee(String surname, float contract) {
        this.surname = surname;
        this.contract = contract;
    }

    public abstract float pay();

    public abstract String group();
}

Answer 1

将String hire(Employee employee.getSurname())更改为String hire(Employee employee)。

编辑：

关于您要按姓氏Employee hire()（我已经向您解释了为什么这是个坏主意）的public String hire(Employee employee) { for (int i = 0; i < arrayList.size(); i++) { // you had employeeNumber instead of arraylist.size() but hire() method does not know anything about that variable Employee temp = arraylist.get(i); if (temp.getSurname().equals(employee.getSurname)) { arrayList.add(employee); return "Hired"; // "return" terminates the execution of the method. } } }：

mvn archetype:generate "-DinteractiveMode=false" "-DarchetypeGroupId=org.openjdk.jcstress" "-DarchetypeArtifactId=jcstress-java-test-archetype" "-DarchetypeVersion=0.4" "-DgroupId=org.sample" "-DartifactId=test" "-Dversion=1.0"

按姓氏雇用

1 个答案: