refactor

LibraryManagementSystem/.vscode/launch.json

@@ -1,18 +0,0 @@
-{
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "java",
-            "name": "Current File",
-            "request": "launch",
-            "mainClass": "${file}"
-        },
-        {
-            "type": "java",
-            "name": "Test",
-            "request": "launch",
-            "mainClass": "Test",
-            "projectName": "LibraryManagementSystem"
-        }
-    ]
-}

SchoolPersonnelManagementSystem/.vscode/launch.json

@@ -1,18 +0,0 @@
-{
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "java",
-            "name": "Current File",
-            "request": "launch",
-            "mainClass": "${file}"
-        },
-        {
-            "type": "java",
-            "name": "Test",
-            "request": "launch",
-            "mainClass": "Test",
-            "projectName": "SchoolPersonnelManagementSystem"
-        }
-    ]
-}

Shopping/.vscode/launch.json

@@ -1,18 +0,0 @@
-{
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "java",
-            "name": "Current File",
-            "request": "launch",
-            "mainClass": "${file}"
-        },
-        {
-            "type": "java",
-            "name": "Test",
-            "request": "launch",
-            "mainClass": "Test",
-            "projectName": "Shopping"
-        }
-    ]
-}

Shopping/Cashier.java

@@ -1,3 +1,5 @@
+package shopping;
+
 public class Cashier {
     private String strName;
     private float fMoney;

Shopping/Customer.java

@@ -1,3 +1,5 @@
+package shopping;
+
 public class Customer {
     private String strName;
     private float fMoney;

Shopping/Good.java

@@ -1,3 +1,5 @@
+package shopping;
+
 public class Good {
     private String strName;
     private float fPrice;

Shopping/ShopCar.java

@@ -1,3 +1,5 @@
+package shopping;
+
 import java.util.ArrayList;
 import java.util.List;
 

Shopping/Test.java

@@ -1,3 +1,5 @@
+package shopping;
+
 public class Test {
     public static void main(String[] args) {
         Customer cs = new Customer("zhang", 2000);

Temp/.vscode/launch.json

@@ -1,18 +0,0 @@
-{
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "java",
-            "name": "Current File",
-            "request": "launch",
-            "mainClass": "${file}"
-        },
-        {
-            "type": "java",
-            "name": "Test",
-            "request": "launch",
-            "mainClass": "Test",
-            "projectName": "Temp"
-        }
-    ]
-}

Temp/Student.java

@@ -1,14 +0,0 @@
-public class Student {
-    // 单例模式
-    private static Student instance = null;
-
-    private Student() {
-    }
-
-    public static Student getInstance() {
-        if (instance == null) {
-            instance = new Student();
-        }
-        return instance;
-    }
-}

Temp/Test.java

@@ -1,7 +0,0 @@
-public class Test {
-    public static void main(String[] args) {
-        Student student1 = Student.getInstance();
-        Student student2 = Student.getInstance();
-        System.out.println(student1 == student2);
-    }
-}

library/Administrator.java

@@ -1,3 +1,5 @@
+package library;
+
 public class Administrator {
     private int iId;
     private String strName;

library/Bag.java

@@ -1,3 +1,5 @@
+package library;
+
 import java.util.ArrayList;
 import java.util.List;
 

library/Book.java

@@ -1,3 +1,5 @@
+package library;
+
 public class Book {
     private String strIsbn;
     private String strTitle;

library/Library.java

@@ -1,3 +1,5 @@
+package library;
+
 import java.util.ArrayList;
 import java.util.List;
 

library/Student.java

@@ -1,3 +1,5 @@
+package library;
+
 public class Student {
     private int iId;
     private String strName;

library/Test.java

@@ -1,3 +1,5 @@
+package library;
+
 public class Test {
     public static void main(String[] args) {
         Administrator adm = new Administrator(1, "John");

school/Administrator.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Administrator extends Person {
     private String adminID;
 

school/ManagementSys.java

@@ -1,3 +1,5 @@
+package school;
+
 import java.util.ArrayList;
 import java.util.List;
 

school/Manager.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Manager extends Person {
     private static Manager instance = null;
 

school/Person.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Person {
     private String name;
     private int age;

school/Staff.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Staff extends Person {
     private String staffID;
 

school/Student.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Student extends Person {
     private String studentID;
 

school/Teacher.java

@@ -1,3 +1,5 @@
+package school;
+
 public class Teacher extends Person {
     private String teacherID;
 

school/Test.java

@@ -1,3 +1,7 @@
+package school;
+
+import library.Administrator;
+
 public class Test {
     public static void main(String[] args) {
         ManagementSys sys = ManagementSys.getInstance();