package com.oracle.demo01; import java.util.ArrayList;
import java.util.Scanner; public class Demo01 {
public static void main(String[] args) {
System.out.println("=========================欢迎光临 oracle 超市======================");
System.out.println("1:货物清单 2:添加新货物 3:删除货物 4:修改货物");
System.out.println("5:退出系统");
System.out.println("请您输入要操作的功能序号");
System.out.println("--------------");
while(true){
System.out.println("1:货物清单 2:添加新货物 3:删除货物 4:修改货物");
System.out.println("5:退出系统");
System.out.println("请您输入要操作的功能序号");
Scanner sc = new Scanner(System.in);
int num = sc.nextInt();
switch (num) {
case 1:
f1();
break;
case 2:
f2();
break;
case 3:
f3();
break;
case 4:
f4();
break;
case 5:
return;
default:
System.out.println("您输入的有误");
break;
}
} } public static void f1() {
ArrayList<chaoshi> arr = new ArrayList<chaoshi>();
chaoshi c1 = new chaoshi();
c1.spbh = 9001;
c1.spm = "少林寺酥饼核桃";
c1.jiage = 120.0;
arr.add(c1);
chaoshi c2 = new chaoshi();
c2.spbh = 9002;
c2.spm = "尚康杂粮牡丹饼";
c2.jiage = 20.0;
arr.add(c2);
chaoshi c3 = new chaoshi();
c3.spbh = 9003;
c3.spm = "*原产哈密瓜";
c3.jiage = 7.0;
arr.add(c3);
System.out.println("商品编号" + "\t" + "商品名称" + "\t" + "\t" + "商品单价");
for (int i = 0; i < arr.size(); i++) {
System.out.println(arr.get(i).spbh + "\t" + arr.get(i).spm + "\t" + arr.get(i).jiage);
}
} public static void f2() {
ArrayList<chaoshi> arr = new ArrayList<chaoshi>();
chaoshi c4 = new chaoshi();
System.out.println("输入新水果的名称:");
Scanner mz = new Scanner(System.in);
String sg = mz.next();
c4.spm = sg;
System.out.println("输入新水果的编号:");
int sg1 = mz.nextInt();
c4.spbh = sg1;
System.out.println("输入新水果的价格:");
int sg2 = mz.nextInt();
c4.jiage = sg2;
arr.add(c4);
chaoshi c1 = new chaoshi();
c1.spbh = 9001;
c1.spm = "少林寺酥饼核桃";
c1.jiage = 120.0;
arr.add(c1);
chaoshi c2 = new chaoshi();
c2.spbh = 9002;
c2.spm = "尚康杂粮牡丹饼";
c2.jiage = 20.0;
arr.add(c2);
chaoshi c3 = new chaoshi();
c3.spbh = 9003;
c3.spm = "*原产哈密瓜";
c3.jiage = 7.0;
arr.add(c3);
System.out.println("商品编号" + "\t" + "商品名称" + "\t" + "\t" + "商品单价");
for (int i = 0; i < arr.size(); i++) {
System.out.println(arr.get(i).spbh + "\t" + arr.get(i).spm + "\t" + arr.get(i).jiage);
}
} public static void f3() {
System.out.println("输入您要删除的商品编号");
Scanner sc = new Scanner(System.in);
int sc1 = sc.nextInt();
ArrayList<chaoshi> arr = new ArrayList<chaoshi>();
chaoshi c1 = new chaoshi();
c1.spbh = 9001;
c1.spm = "少林寺酥饼核桃";
c1.jiage = 120.0;
arr.add(c1);
chaoshi c2 = new chaoshi();
c2.spbh = 9002;
c2.spm = "尚康杂粮牡丹饼";
c2.jiage = 20.0;
arr.add(c2);
chaoshi c3 = new chaoshi();
c3.spbh = 9003;
c3.spm = "*原产哈密瓜";
c3.jiage = 7.0;
arr.add(c3);
if (sc1 == 9001) {
arr.remove(0);
}
if (sc1 == 9002) {
arr.remove(1);
}
if (sc1 == 9003) {
arr.remove(2);
}
System.out.println("商品编号" + "\t" + "商品名称" + "\t" + "\t" + "商品单价");
for (int i = 0; i < arr.size(); i++) {
System.out.println(arr.get(i).spbh + "\t" + arr.get(i).spm + "\t" + arr.get(i).jiage);
}
} public static void f4() {
ArrayList<chaoshi> arr = new ArrayList<chaoshi>();
chaoshi c1 = new chaoshi();
c1.spbh = 9001;
c1.spm = "少林寺酥饼核桃";
c1.jiage = 120.0;
arr.add(c1);
chaoshi c2 = new chaoshi();
c2.spbh = 9002;
c2.spm = "尚康杂粮牡丹饼";
c2.jiage = 20.0;
arr.add(c2);
chaoshi c3 = new chaoshi();
c3.spbh = 9003;
c3.spm = "*原产哈密瓜";
c3.jiage = 7.0;
arr.add(c3);
System.out.println("输入您要修改的商品编码:");
Scanner xg = new Scanner(System.in);
int g1 = xg.nextInt();
System.out.println("输入新的商品编码");
int g2 = xg.nextInt();
System.out.println("输入新的水果名称");
String g3 = xg.next();
System.out.println("输入新的水果价格");
int g4 = xg.nextInt();
if (g1 == 9001) {
c1.spbh = g2;
c1.spm = g3;
c1.jiage = g4;
}
if (g1 == 9002) {
c2.spbh = g2;
c2.spm = g3;
c2.jiage = g4;
}
if (g1 == 9003) {
c3.spbh = g2;
c3.spm = g3;
c3.jiage = g4;
}
System.out.println("商品编号" + "\t" + "商品名称" + "\t" + "\t" + "商品单价");
for (int i = 0; i < arr.size(); i++) {
System.out.println(arr.get(i).spbh + "\t" + arr.get(i).spm + "\t" + arr.get(i).jiage);
}
}
}