Java最佳实践：遵循面向对象设计原则，提高代码质量实例-蒲公英云

Java最佳实践：遵循面向对象设计原则，提高代码质量实例

原创我不是女神ヾ 2024-09-12 00:57 147阅读 0赞

在Java编程中，遵循面向对象设计原则是非常重要的。以下是一个遵循这些原则的实例：

封装（Encapsulation）：

public class Employee {
 private String name;
 private int id;
 // getter and setter methods
 public String getName() {
     return name;
 }
 public void setName(String name) {
     this.name = name;
 }
 // rest of the code for id and other methods
}

继承（Inheritance）：

// Assuming we have a Boss class
public class Boss extends Employee {
 private double salary;
 // Getter and Setter for salary
 public double getSalary() {
     return salary;
 }
 public void setSalary(double salary) {
     this.salary = salary;
 }
 // Rest of the code specific to boss
}

多态（Polymorphism）：

// Use the polymorphic method in Employee class
public class Main {
 public static void main(String[] args) {
     Employee employee1 = new Employee();
     employee1.setName("John");
     Employee employee2 = new Boss();
     employee2.setName("Alice");
     employee2.setSalary(8000);
     System.out.println("Employee 1: " + employee1.getName());
     System.out.println("Employee 2 (Boss): " + employee2.getName() + " - Salary: " + employee2.getSalary());
     // Test polymorphic method
     String result = employee1.getAddress(employee2));
     System.out.println("Address using polymorphism: " + result);
 }
}