饭卡java代码饭卡系统

紧急求助有关JAVA编程问题，编出给高分

楼上说的对啊，时间问题，祝你好运啦！

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PS：楼主不是我说你，这事早干嘛了~~

1用JAVA语言编写程序，实现图形化界面的学生成绩（学号，姓名，科目，成绩）管理系统。

这种东西已涉及到商业利益，没人愿意帮你吧！都想你这样别人都没钱赚啦

JAVA 这个东西怎么做？

package javaapplication26;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

// Import the Java classes

import java.util.*;

import javax.swing.border.EmptyBorder;

/**

* A JOutlookBar provides a component that is similar to a JTabbedPane, but instead of maintaining

* tabs, it uses Outlook-style bars to control the visible component

public class JOutlookBar extends JPanel implements ActionListener {

private JPanel topPanel = new JPanel(new GridLayout(1, 1));

private JPanel bottomPanel = new JPanel(new GridLayout(1, 1));

/**

* A LinkedHashMap of bars: we use a linked hash map to preserve the order of the bars

private Map bars = new LinkedHashMap();

/**

* The currently visible bar (zero-based index)

private int visibleBar = 0;

/**

* A place-holder for the currently visible component

private JComponent visibleComponent = null;

/**

* Creates a new JOutlookBar; after which you should make repeated calls to

* addBar() for each bar

public JOutlookBar() {

this.setLayout(new BorderLayout());

this.add(topPanel, BorderLayout.NORTH);

this.add(bottomPanel, BorderLayout.SOUTH);

}

public void addBar(String name, JComponent component) {

BarInfo barInfo = new BarInfo(name, component);

barInfo.getButton().addActionListener(this);

this.bars.put(name, barInfo);

render();

}

/**

* Adds the specified component to the JOutlookBar and sets the bar's name

* @param name The name of the outlook bar

* @param icon An icon to display in the outlook bar

* @param componenet The component to add to the bar

public void addBar(String name, Icon icon, JComponent component) {

BarInfo barInfo = new BarInfo(name, icon, component);

barInfo.getButton().addActionListener(this);

this.bars.put(name, barInfo);

render();

}

/**

* Removes the specified bar from the JOutlookBar

* @param name The name of the bar to remove

public void removeBar(String name) {

this.bars.remove(name);

render();

}

/**

* Returns the index of the currently visible bar (zero-based)

* @return The index of the currently visible bar

public int getVisibleBar() {

return this.visibleBar;

}

/**

* Programmatically sets the currently visible bar; the visible bar

* index must be in the range of 0 to size() - 1

* @param visibleBar The zero-based index of the component to make visible

public void setVisibleBar(int visibleBar) {

if (visibleBar 0

visibleBar this.bars.size() - 1) {

this.visibleBar = visibleBar;

render();

}

/**

* Causes the outlook bar component to rebuild itself; this means that

* it rebuilds the top and bottom panels of bars as well as making the

* currently selected bar's panel visible

public void render() {

// Compute how many bars we are going to have where

int totalBars = this.bars.size();

int topBars = this.visibleBar + 1;

int bottomBars = totalBars - topBars;

// Get an iterator to walk through out bars with

Iterator itr = this.bars.keySet().iterator();

// Render the top bars: remove all components, reset the GridLayout to

// hold to correct number of bars, add the bars, and "validate" it to

// cause it to re-layout its components

this.topPanel.removeAll();

GridLayout topLayout = (GridLayout) this.topPanel.getLayout();

topLayout.setRows(topBars);

BarInfo barInfo = null;

for (int i = 0; i topBars; i++) {

String barName = (String) itr.next();

barInfo = (BarInfo) this.bars.get(barName);

this.topPanel.add(barInfo.getButton());

}

this.topPanel.validate();

// Render the center component: remove the current component (if there

// is one) and then put the visible component in the center of this panel

if (this.visibleComponent != null) {

this.remove(this.visibleComponent);

}

this.visibleComponent = barInfo.getComponent();

this.add(visibleComponent, BorderLayout.CENTER);

// Render the bottom bars: remove all components, reset the GridLayout to

// hold to correct number of bars, add the bars, and "validate" it to

// cause it to re-layout its components

this.bottomPanel.removeAll();

GridLayout bottomLayout = (GridLayout) this.bottomPanel.getLayout();

bottomLayout.setRows(bottomBars);

for (int i = 0; i bottomBars; i++) {

String barName = (String) itr.next();

barInfo = (BarInfo) this.bars.get(barName);

this.bottomPanel.add(barInfo.getButton());

}

this.bottomPanel.validate();

this.validate();

}

/**

* Invoked when one of our bars is selected

public void actionPerformed(ActionEvent e) {

/* int currentBar = 0;

for (Iterator i = this.bars.keySet().iterator(); i.hasNext();) {

String barName = (String) i.next();

BarInfo barInfo = (BarInfo) this.bars.get(barName);

if (barInfo.getButton() == e.getSource()) {

// Found the selected button

this.visibleBar = currentBar;

render();

return;

}

currentBar++;

}*/

BarInfo barInfo = (BarInfo) this.bars.get("员工管理");

if (barInfo.getButton() == e.getSource()) {

this.visibleBar = 0;

render();

return;

}

/**

* Debug, dummy method

public static JPanel getDummyPanel(String name) {

JPanel panel = new JPanel(new BorderLayout());

panel.add(new JLabel(name, JLabel.CENTER));

return panel;

}

public static JPanel getEmployeePanel() {

GridBagLayout gbl = new GridBagLayout();

GridBagConstraints gbc = new GridBagConstraints();

JPanel panel = new JPanel(gbl);

panel.setBorder(new EmptyBorder(12, 12, 0, 11));

gbc.gridx = 0;

gbc.gridy = 0;

gbc.insets = new Insets(0, 0, 0, 5);

gbc.anchor = GridBagConstraints.EAST;

panel.add(new JMenuItem(new addEmployeeInfoAction()), gbc);

gbc.gridy++;

gbc.insets = new Insets(0, 0, 0, 5);

gbc.anchor = GridBagConstraints.EAST;

panel.add(new JMenuItem(new modifyEmployeeInfoAction()), gbc);

gbc.gridy++;

gbc.insets = new Insets(0, 0, 0, 5);

gbc.anchor = GridBagConstraints.EAST;

panel.add(new JMenuItem(new searchEmployeeInfoAction()), gbc);

gbc.gridy++;

gbc.insets = new Insets(0, 0, 0, 5);

gbc.anchor = GridBagConstraints.EAST;

panel.add(new JMenuItem(new deleteEmployeeInfoAction()), gbc);

return panel;

}

/**

* Debug test...

public static void main(String[] args) {

JFrame frame = new JFrame("学生信息管理");

JOutlookBar outlookBar = new JOutlookBar();

//outlookBar.addBar(TOOL_TIP_TEXT_KEY, component)

outlookBar.addBar("员工管理", getEmployeePanel());

// outlookBar.add

outlookBar.addBar("饭卡管理", getDummyPanel(""));

outlookBar.addBar("销售管理", getDummyPanel(""));

// outlookBar.addBar( "Four", getDummyPanel( "Four" ) );

// outlookBar.addBar( "Five", getDummyPanel( "Five" ) );

outlookBar.setVisibleBar(2);

frame.getContentPane().add(outlookBar);

frame.setSize(200, 400);

Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

frame.setLocation(d.width / 2 - 400, d.height / 2 - 300);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

/**

* Internal class that maintains information about individual Outlook bars;

* specifically it maintains the following information:

* name The name of the bar

* button The associated JButton for the bar

* component The component maintained in the Outlook bar

class BarInfo {

/**

* The name of this bar

private String name;

/**

* The JButton that implements the Outlook bar itself

private JButton button;

/**

* The component that is the body of the Outlook bar

private JComponent component;

/**

* Creates a new BarInfo

* @param name The name of the bar

* @param component The component that is the body of the Outlook Bar

public BarInfo(String name, JComponent component) {

this.name = name;

this.component = component;

this.button = new JButton(name);

}

/**

* Creates a new BarInfo

* @param name The name of the bar

* @param icon JButton icon

* @param component The component that is the body of the Outlook Bar

public BarInfo(String name, Icon icon, JComponent component) {

this.name = name;

this.component = component;

this.button = new JButton(name, icon);

}

public String getName() {

return this.name;

}

/**

* Sets the name of the bar

* @param The name of the bar

public void setName(String name) {

this.name = name;

}

public JButton getButton() {

return this.button;

}

public JComponent getComponent() {

return this.component;

}

class addEmployeeInfoAction extends AbstractAction {

{

putValue(Action.SHORT_DESCRIPTION, "heool");

putValue(Action.NAME, "添加员工信息");

putValue(Action.LONG_DESCRIPTION, "Name this element.");

putValue(Action.MNEMONIC_KEY,

new Integer(java.awt.event.KeyEvent.VK_L));

}

public void actionPerformed(ActionEvent e) {

JDialog dialog = new JDialog();

dialog.setName("Message");

dialog.setVisible(true);

//throw new UnsupportedOperationException("Not supported yet.");

}

class modifyEmployeeInfoAction extends AbstractAction {

{

putValue(Action.SHORT_DESCRIPTION, "heool");

putValue(Action.NAME, "修改员工信息");

putValue(Action.LONG_DESCRIPTION, "Name this element.");

putValue(Action.MNEMONIC_KEY,

new Integer(java.awt.event.KeyEvent.VK_L));

}

public void actionPerformed(ActionEvent e) {

JDialog dialog = new JDialog();

dialog.setName("Message");

dialog.setVisible(true);dialog.setSize(100, 100);

//throw new UnsupportedOperationException("Not supported yet.");

}

class searchEmployeeInfoAction extends AbstractAction {

{

putValue(Action.SHORT_DESCRIPTION, "heool");

putValue(Action.NAME, "查询员工信息");

putValue(Action.LONG_DESCRIPTION, "Name this element.");

putValue(Action.MNEMONIC_KEY,

new Integer(java.awt.event.KeyEvent.VK_L));

}

public void actionPerformed(ActionEvent e) {

JDialog dialog = new JDialog();

dialog.setName("Message");

dialog.setVisible(true);

//throw new UnsupportedOperationException("Not supported yet.");

}

class deleteEmployeeInfoAction extends AbstractAction {

{

putValue(Action.SHORT_DESCRIPTION, "heool");

putValue(Action.NAME, "删除员工信息");

putValue(Action.LONG_DESCRIPTION, "Name this element.");

putValue(Action.MNEMONIC_KEY,

new Integer(java.awt.event.KeyEvent.VK_L));

}

public void actionPerformed(ActionEvent e) {

JDialog dialog = new JDialog();

dialog.setName("Message");

dialog.setVisible(true);dialog.setVisible(true);

//点击对应的操作

//throw new UnsupportedOperationException("Not supported yet.");

}

程序沿用到楼上的那个模板，不过有些地方很毛糙，你自己在修改一下，比方说对事件的定义还有对那几个选项的位置等你自己再修改一下

求java实现的饭卡管理系统能连接数据库使用

答案voidmain(){intsele=1,t;floatx;system("cls");printf("欢迎使用简易菜单!本菜单在VC++平台编译通过\n");printf("有何建议请联系本人!\n");printf("成绩管理菜单\n");printf("\n");printf("1.输入成绩2.计算总分3.求平均值4.输出总分与平均5.清理屏幕6.高低排列7.上平均分人数0.退出8.全部情况:总分平均分第一名及格人数");scanf("%d",sele);puts("");if(sele=0sele1.输入成绩2.计算总分3.求平均值4.输出总分与平均5.清理屏幕6.高低排列7.上平均分人数0.退出8.全部情况:总分平均分第一名及格人数\n");break;case6:gaodi(a);break;case7:super(a);break;case8:full(t,x);break;}elseprintf("你的输入有误,请重新:")

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饭卡java代码饭卡系统

紧急求助有关JAVA编程问题，编出给高分

1用JAVA语言编写程序，实现图形化界面的学生成绩（学号，姓名，科目，成绩）管理系统。

JAVA 这个东西怎么做？

求java实现的饭卡管理系统能连接数据库使用

其他资讯

网站建设知识

饭卡java代码 饭卡系统

紧急求助有关JAVA编程问题，编出给高分

1用JAVA语言编写程序，实现图形化界面的学生成绩（学号，姓名，科目，成绩）管理系统。

JAVA 这个东西怎么做？

求java实现的饭卡管理系统能连接数据库使用

其他资讯

饭卡java代码饭卡系统