在Java中的不同类之间传递数组元素

Question

我在将数组中包含名称和数字的元素传递给另一个将进行计算的类时遇到问题。这是我对班上的东西。

public class Employee { 
    private int sales; 
    private String name; 

    public Employee(String name, int sales){ 
     this.name = name; 
     this.sales = sales; 
    } 
    public String getName(){ 
     return this.name; 
    } 
    public int getSales(){ 
     return this.sales; 
    } 
} 

该类将帮助存储数组的名称和销售额。这是它的独立类中的数组。

import java.util.Scanner; 

public class EmployeeArray { 

    public static int employee() { 

     Scanner input = new Scanner(System.in); 

     int numEmp; 
     System.out.println("Enter how may employees to be compared: "); 
     numEmp = input.nextInt(); 
     input.nextLine(); 
     Employee[] employees = new Employee[numEmp]; 

     for (int i = 0; i < numEmp; i++) { 
      System.out.print("Enter your name: "); 
      String employeeName = input.nextLine(); 
      System.out.println(); 
      System.out.print("Enter your annual sales: "); 
      int employeeSales = input.nextInt(); 
      input.nextLine(); 
      System.out.println(); 

      Employee employee = new Employee(employeeName, employeeSales); 
      employees[i] = employee; 
     } 
     Employee maxSeller = employees[0]; 
     for (int i = 0; i < employees.length; i++) { 

      System.out.println("Employee Name: " + employees[i].getName()); 
      System.out.println("Total sales: $" + employees[i].getSales()); 
      System.out.println(); 

      if (maxSeller.getSales() < employees[i].getSales()) { 
       maxSeller = employees[i]; 
      } 
     } 
     System.out.println(); 
     System.out.println("Top Seller is: " + maxSeller.getName()); 
     System.out.println("Top Sales are: $" + maxSeller.getSales()); 

     return maxSeller.getSales(); 

    } 
} 

数组中存放的值，并返回最畅销称为maxSeller并得到姓名和销售额他们。现在我遇到的问题是，在一个单独的类中，我需要获取存储在此数组中的值来执行一些计算。我必须得到maxSeller的销售额，并将它们与阵列中其他卖家的销售额进行比较。在那里，我正在试图展示其他人需要达到的平均销售额或超过最高销售额的销售额。这是我遇到的问题。我不知道如何将数组中的值传递给下一个类，以便我可以进行计算。有什么想法吗？

Answer 1

除了在静态方法中创建数组，您可以使其成为EmployeeArray的成员，然后您可以在静态上下文中使用该数组（不推荐）或创建不同的EmployeeArray以容纳不同的员工阵列， OOP更有意义。草图：

import java.util.Scanner; 

public class EmployeeArray { 
private Employee[] employees; 

public Employee[] getEmployees() { 
    return employees; 
} 

public void setUpArray() { 
    Scanner input = new Scanner(System.in); 

    int numEmp; 
    System.out.println("Enter how may employees to be compared: "); 
    numEmp = input.nextInt(); 
    input.nextLine(); 
    employees = new Employee[numEmp]; 

    for (int i = 0; i < numEmp; i++) { 
     System.out.print("Enter your name: "); 
     String employeeName = input.nextLine(); 
     System.out.println(); 
     System.out.print("Enter your annual sales: "); 
     int employeeSales = input.nextInt(); 
     input.nextLine(); 
     System.out.println(); 

     Employee employee = new Employee(employeeName, employeeSales); 
     employees[i] = employee; 
    } 
} 

public int getMaxSellerEmployeeSales() { 
    Employee maxSeller = employees[0]; 
    for (int i = 0; i < employees.length; i++) { 

     System.out.println("Employee Name: " + employees[i].getName()); 
     System.out.println("Total sales: $" + employees[i].getSales()); 
     System.out.println(); 

     if (maxSeller.getSales() < employees[i].getSales()) { 
      maxSeller = employees[i]; 
     } 
    } 
    System.out.println(); 
    System.out.println("Top Seller is: " + maxSeller.getName()); 
    System.out.println("Top Sales are: $" + maxSeller.getSales()); 
    return maxSeller.getSales(); 
} 

public static void main(String[] args) { 
    EmployeeArray google = new EmployeeArray(); 
    google.setUpArray(); 

    EmployeeArray ms = new EmployeeArray(); 
    ms.setUpArray(); 

    EmployeeArrayCalculatorAndManipulator eGoogle = new EmployeeArrayCalculatorAndManipulator(); 
    EmployeeArrayCalculatorAndManipulator eMS = new EmployeeArrayCalculatorAndManipulator(); 
    eGoogle.doSomethingWithArray(google.getEmployees()); 
    eMS.doSomethingWithArray(ms.getEmployees()); 
} 

} 

Answer 2

它的工作对我来说： -

包EmployeePackage;

公共类Employee {

private int sales; 
private String name; 

public Employee(String employeeName, int employeeSales){ 
    this.name = employeeName; 
    this.sales = employeeSales; 


} 
public String getName(){ 
    return this.name; 
} 
public int getSales(){ 
    return this.sales; 
} 

}

---

包EmployeePackage;

import java.util.Scanner; 公共类EmployeeArray {

public static void main(String[] args) { 

    Scanner input = new Scanner(System.in); 

    int numEmp; 

    System.out.println("Enter how may employees to be compared: "); 
    numEmp = input.nextInt(); 
    input.nextLine(); 
    Employee[] employees = new Employee[numEmp]; 

    for (int i = 0; i < numEmp; i++) { 
     System.out.print("Enter your name: "); 
     String employeeName = input.nextLine(); 
     System.out.println(); 
     System.out.print("Enter your annual sales: "); 
     int employeeSales = input.nextInt(); 
     input.nextLine(); 
     System.out.println(); 

employees[i] = new Employee(employeeName , employeeSales); //calling constructor 

    } 
    Employee maxSeller = employees[0]; 
    for (int i = 0; i < employees.length; i++) { 

     System.out.println("Employee Name: " + employees[i].getName()); 
     System.out.println("Total sales: $" + employees[i].getSales()); 
     System.out.println(); 

     if (maxSeller.getSales() < employees[i].getSales()) { 
      maxSeller = employees[i]; 
     } 
    } 
    System.out.println(); 
    System.out.println("Top Seller is: " + maxSeller.getName()); 
    System.out.println("Top Sales are: $" + maxSeller.getSales()); 


} 

}