java买东西界面代码 java购买商品的过程代码

购物车的Java代码

import java.util.ArrayList;

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import java.util.HashMap;

import java.util.Iterator;public class ShoppingCartManager {

HashMapString, String hm=new HashMapString, String();

float totlePrice=0;

//添加book到购物车

public void addBook(String bookId,String bookQuantity){

if(hm.containsKey(bookId)){

int value=Integer.parseInt(hm.get(bookId));

value+=Integer.parseInt(bookQuantity);

hm.put(bookId, value+"");

}else{

hm.put(bookId, bookQuantity);

}

//修改数量

public void updateQuantity(String bookId,String bookQuantity){

hm.put(bookId, bookQuantity);

}

//获取购物车的所有信息并计算总价

public ArrayListBookBean getShoppingCart(){

ArrayListBookBean al=new ArrayListBookBean();

IteratorString i=hm.keySet().iterator();

String ids="";

BookTableManager btm=new BookTableManager();

while(i.hasNext()){

ids=ids+","+i.next();

}

al= btm.selectByBookIds(ids);

totlePrice=0; //清空总价，防止无限累计

for(int j=0;jal.size();j++){

BookBean bb=al.get(j);

totlePrice+=bb.getPrice()*Integer.parseInt(getQuantityById(bb.getBookId()+""));

}

return al;

}

//获取总价

public float getTotlePrice(){

return totlePrice;

}

//根据ID获取数量

public String getQuantityById(String id){

String quantity=hm.get(id);

return quantity;

}

//清空购物车

public void clear(){

hm.clear();

}

//删除购物车中的一本书

public void deleteById(String id){

hm.remove(id);

}

使用JAVA 编写一个程序，显示5中商品价格，用户可以选择多种商品并在其后的文本框输入购买的数量。

用java Swing做的？给你个代码，还有运行结果图

package my.test.main;

import java.awt.BorderLayout;

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.ComponentEvent;

import java.awt.event.ComponentListener;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.SwingUtilities;

import javax.swing.border.EmptyBorder;

import javax.swing.event.AncestorEvent;

import javax.swing.event.AncestorListener;

import javax.swing.event.CaretEvent;

import javax.swing.event.CaretListener;

import javax.swing.JLabel;

import javax.swing.JTextField;

public class Purchase extends JFrame {

private JPanel contentPane;

private JTextField textField;

private JTextField textField_1;

private JTextField textField_2;

private JTextField textField_3;

private JTextField textField_4;

private JLabel label_9;

/**

* Launch the application.

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

Purchase frame = new Purchase();

frame.setVisible(true);

} catch (Exception e) {

e.printStackTrace();

}

});

}

/**

* Create the frame.

public Purchase() {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100, 100, 450, 300);

contentPane = new JPanel();

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

setContentPane(contentPane);

contentPane.setLayout(null);

JLabel label = new JLabel("\u5546\u54C11");

label.setBounds(56, 40, 54, 15);

contentPane.add(label);

JLabel label_1 = new JLabel("\u5546\u54C12");

label_1.setBounds(56, 70, 54, 15);

contentPane.add(label_1);

JLabel label_2 = new JLabel("\u5546\u54C13");

label_2.setBounds(56, 100, 54, 15);

contentPane.add(label_2);

JLabel label_3 = new JLabel("\u5546\u54C14");

label_3.setBounds(56, 130, 54, 15);

contentPane.add(label_3);

JLabel label_4 = new JLabel("\u5546\u54C15");

label_4.setBounds(56, 160, 54, 15);

contentPane.add(label_4);

JLabel label_5 = new JLabel("\u5546\u54C1\u540D\u79F0");

label_5.setBounds(56, 7, 54, 15);

contentPane.add(label_5);

JLabel label_6 = new JLabel("单价");

label_6.setBounds(179, 7, 54, 15);

contentPane.add(label_6);

JLabel label_7 = new JLabel("数量");

label_7.setBounds(307, 7, 54, 15);

contentPane.add(label_7);

JLabel label_8 = new JLabel("总价");

label_8.setBounds(145, 224, 54, 15);

contentPane.add(label_8);

label_9 = new JLabel("0");

label_9.setBounds(209, 224, 54, 15);

contentPane.add(label_9);

JLabel label_10 = new JLabel("10");

label_10.setBounds(185, 40, 54, 15);

contentPane.add(label_10);

JLabel label_11 = new JLabel("20");

label_11.setBounds(185, 70, 54, 15);

contentPane.add(label_11);

JLabel label_12 = new JLabel("30");

label_12.setBounds(185, 100, 54, 15);

contentPane.add(label_12);

JLabel label_13 = new JLabel("40");

label_13.setBounds(185, 130, 54, 15);

contentPane.add(label_13);

JLabel label_14 = new JLabel("50");

label_14.setBounds(185, 160, 54, 15);

contentPane.add(label_14);

textField = new JTextField();

textField.setBounds(295, 37, 66, 21);

contentPane.add(textField);

textField.setColumns(10);

textField.addKeyListener(new CalcTotle());

textField_1 = new JTextField();

textField_1.setColumns(10);

textField_1.setBounds(295, 67, 66, 21);

contentPane.add(textField_1);

textField_1.addKeyListener(new CalcTotle());

textField_2 = new JTextField();

textField_2.setColumns(10);

textField_2.setBounds(295, 97, 66, 21);

contentPane.add(textField_2);

textField_2.addKeyListener(new CalcTotle());

textField_3 = new JTextField();

textField_3.setColumns(10);

textField_3.setBounds(295, 127, 66, 21);

contentPane.add(textField_3);

textField_3.addKeyListener(new CalcTotle());

textField_4 = new JTextField();

textField_4.setColumns(10);

textField_4.setBounds(295, 157, 66, 21);

contentPane.add(textField_4);

textField_4.addKeyListener(new CalcTotle());

}

class CalcTotle extends KeyAdapter {

@Override

public void keyReleased(KeyEvent e) {

// TODO Auto-generated method stub

int count1, count2, count3, count4, count5;

if (!textField.getText().isEmpty()) {

count1 = Integer.parseInt(textField.getText()) * 10;

} else {

count1 = 0;

}

if (!textField_1.getText().isEmpty()) {

count2 = Integer.parseInt(textField_1.getText()) * 20;

} else {

count2 = 0;

}

if (!textField_2.getText().isEmpty()) {

count3 = Integer.parseInt(textField_2.getText()) * 30;

} else {

count3 = 0;

}

if (!textField_3.getText().isEmpty()) {

count4 = Integer.parseInt(textField_3.getText()) * 40;

} else {

count4 = 0;

}

if (!textField_4.getText().isEmpty()) {

count5 = Integer.parseInt(textField_4.getText()) * 50;

} else {

count5 = 0;

}

final int totle = count1 + count2 + count3 + count4 + count5;

SwingUtilities.invokeLater(new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

label_9.setText(totle + "");

}

});

}

用java写一个手机商城注册界面代码

这篇文章主要介绍了java通过JFrame做一个登录系统的界面完整代码示例，具有一定借鉴价值，需要的朋友可以参考下。

在java的JFrame内通过创建匿名对象的方式做登录界面

package com.sxt;

import java.awt.Container;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPasswordField;

import javax.swing.JTextField;

public class LoginFrame extends JFrame{

JTextField txtname=new JTextField();

JPasswordField txtpass=new JPasswordField();

JButton bl=new JButton("登录");

JButton bg=new JButton("关闭");

//构造无参构造器把主要的方法放在构造器里,然后在main方法里面调

public LoginFrame(){

setBounds(25,25,250,250);

Container c = getContentPane();

c.setLayout(new GridLayout(4,2,10,10));

c.add(new JLabel("用户名"));

c.add(txtname);

c.add(new JLabel("密码"));

c.add(txtpass);

c.add(bl);

c.add(bg);

setDefaultCloseOperation(EXIT_ON_CLOSE);

setVisible(true);

//注意：此处是匿名内部类

bg.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

System.exit(0);

}

);

//注意：此处是匿名内部类

bl.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

java编写一个网上支付系统界面

html

head

meta http-equiv="Content-Type" content="text/html; charset=utf-8"

title购物与结算/title

style type="text/css"

/style

link rel="stylesheet" href="

script src="

(beta4)/IE9.js"/script

script src="

script type="text/javascript"

function pay()

{

var link = document.getElementById("a1");

link.click();

var a = new Array();

a[0]="html教程";

a[1]=12;

a[2]=1;

a[3]=a[1]*a[2];

var a1 = new Array();

a1[0]="java详解";

a1[1]=25;

a1[2]=2;

a1[3]=a1[1]*a1[2];

var b = new Array();

b[0]=a;

b[1]=a1;

var amount =0;

for(var i=0;ib.length;i++)

{

var c = new Array();

c=b[i];

amount = amount+c[3];

var tr ="tr";

for(var j=0;jc.length;j++)

{

tr+="td"+c[j]+"/td";

}

tr+="/tr";

$("#list").append(tr);

$("#all").html("b总计：/bfont color=\"red\""+amount+"/font")

}

function goon()

{

var link = document.getElementById("a2");

link.click();

$("#news").html("支付成功！！");

}

/script

/head

body

input type="button" class="btn btn-danger" value="点击结算" onclick="pay()"

a href="#myModaltishi" role="button" class="btn" data-toggle="modal" id="a1" style="display: none"/a

div id="myModaltishi" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"

div class="modal-header"

button type="button" class="close" data-dismiss="modal" aria-hidden="true"×/button

h3 id="myModalLabel"购物车/h3

/div

div class="modal-body"

div

table id="list" style="width: 95%;" class="table"

th商品名称/th

th单价/th

th数量/th

th金额/th

/table

/div

div align="right" id="all"/div

/div

div class="modal-footer"

button class="btn" data-dismiss="modal" aria-hidden="true"继续挑选/button

button class="btn btn-primary" data-dismiss="modal" onclick="goon()"支付/button

/div

a href="#myModaltishi1" role="button" class="btn" data-toggle="modal" id="a2" style="display: none"/a

div id="myModaltishi1" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"

div class="modal-header"

button type="button" class="close" data-dismiss="modal" aria-hidden="true"×/button

h3 id="myModalLabel"系统提示/h3

/div

div class="modal-body"

h3 id="news" align="center"/h3

/div

div class="modal-footer"

button class="btn btn-primary" data-dismiss="modal"知道了/button

/div

/body

!-- 浏览器打开可查看效果，

另外由于页面使用了bootstrap框架建议使用渲染较高的浏览器，例如：火狐 --

/html

网页标题：java买东西界面代码 java购买商品的过程代码
URL地址：http://myzitong.com/article/ddoddcs.html

java买东西界面代码 java购买商品的过程代码

购物车的Java代码

使用JAVA 编写一个程序，显示5中商品价格，用户可以选择多种商品并在其后的文本框输入购买的数量。

用java写一个手机商城注册界面代码

java编写一个网上支付系统界面

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