Question

我很困惑如何调用一个在同一个类中返回Key的方法，但是我想实现一个Hashtable。所以使用Java.Lang.Object从方法hashrealCode(Employee e)保存密钥的Hashtable。这是不可能的吗？

我的对象类

public class Employee {   // I created this class to prepare the Object
int id;
String name;
    public Empployee(int id, String name) {
    this.id = id;
    this.name = name;
}

public int hashCode() {
    final int Number = 31;
    int result = 1;
    result = Number * result + id;
    result = Number * result + ((name == null) ? 0 : name.hashCode());
    return result;
}

public int id() {
    return id;
}
public void setId(int Id) {
    this.id = id;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}

 }

在此课程中，我想将密钥添加到我的Hashtable（数组）

public class HashTableEmployee {
Employee[] array;

public void addTheEmployee(Employee e){
        for(int i = 0; i < array.length; i++) { 
            array[i] =  hashrealCode(Employee e) //??? I just want to save the key form Method-hashrealCode(Employee e) to my array, but it didnt work 
        }
}

public Employee[] getArray(){
    return array;
}

public void setArray(Employee[] array){
    this.array = array;
}


public int hashrealCode(Employee e){  //create my own key
    int hash_value = Math.abs(e.hashCode()) % array.length;
    return hash_value;  //I want to save this hashCode in my array 
}


public Employee(int capacity){  // for the length of Array
    array = new Employee[capacity];
}

   }

那么我怎么不能将键（Method-hashrealCode）保存到我创建的方法中？当我试图调用该方法时，它无法正常工作

如何在Hashtable中的同一个类中调用Method（Object o）

0 个答案: