refactor

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);