日本综合一区二区|亚洲中文天堂综合|日韩欧美自拍一区|男女精品天堂一区|欧美自拍第6页亚洲成人精品一区|亚洲黄色天堂一区二区成人|超碰91偷拍第一页|日韩av夜夜嗨中文字幕|久久蜜综合视频官网|精美人妻一区二区三区

java問題 我用流讀取一個(gè)txt小說，把小說的內(nèi)容放進(jìn)一個(gè)集合里， 代碼怎么寫？

public static void main(String[] args) {

創(chuàng)新互聯(lián)堅(jiān)持“要么做到，要么別承諾”的工作理念，服務(wù)領(lǐng)域包括：成都網(wǎng)站設(shè)計(jì)、做網(wǎng)站、成都外貿(mào)網(wǎng)站建設(shè)公司、企業(yè)官網(wǎng)、英文網(wǎng)站、手機(jī)端網(wǎng)站、網(wǎng)站推廣等服務(wù)，滿足客戶于互聯(lián)網(wǎng)時(shí)代的鐵西網(wǎng)站設(shè)計(jì)、移動(dòng)媒體設(shè)計(jì)的需求，幫助企業(yè)找到有效的互聯(lián)網(wǎng)解決方案。努力成為您成熟可靠的網(wǎng)絡(luò)建設(shè)合作伙伴！

try{

File file = new File("E:\\a.txt");//創(chuàng)建文件對(duì)象

BufferedReader br = new BufferedReader(new FileReader(file)); //創(chuàng)建讀取流

//讀取數(shù)據(jù)

String temp = br.readLine();

String line;

while((line = br.readLine()) != null){

temp += "," + line;

}

if(temp == null){

System.out.println();

}else{

//分割字符串

String []str = temp.split(",");

//創(chuàng)建double數(shù)組并賦值

Double[] d = new Double[str.length];

for(int i = 0 ;i str.length ;i++){

d[i] = Double.parseDouble(str[i]);

}

//打印double數(shù)組

for(int i = 0 ; i d.length ; i++){

System.out.println(d[i]);

}

}

}catch(Exception e){

}

java語(yǔ)言框架編寫小說閱讀器代碼

int option = -1;

Object options[] = { "Yes", "No" };

option = JOptionPane.showOptionDialog(frame, "是否退出閱讀？", "exit",

JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null,

options, options[0]);

switch (option) {

case JOptionPane.YES_OPTION:

System.exit(0);

}

}

誰(shuí)能幫我寫個(gè)Java小項(xiàng)目，是簡(jiǎn)單的，就寫小說TXT閱讀器的好了，最少要用到流和集合。麻煩注釋下可以嗎？

只提供一個(gè)小說閱讀,如下

package?reader;

import?java.awt.*;

import?java.awt.event.*;

import?java.io.*;

import?javax.swing.*;

public?class?Notebook?{

private?JFrame?frame;

private?JTextArea?textArea;

private?JMenuBar?menuBar;

private?JMenu?file,?format,?search,?help;

private?JMenuItem?open,?exit;

private?JMenuItem?font,?color,?background,?speed;

private?JMenuItem?find,?changeto;

private?JMenuItem?helps,?about;

private?Boolean?autoLineWrap?=?true;

private?String?fileName?=?"未命名";//?文件名

//?private?File?currentFile?;

private?JScrollPane?jsp;

private?JScrollBar?jsb;

private?Speed?sped;

private?font?font1;

int?delay?=?10;

Timer?timer?=?new?Timer(delay,?new?ActionListener()?{

public?void?actionPerformed(ActionEvent?evt)?{

jsb.setValue(jsb.getValue()?+?jsb.getUnitIncrement());

}

});

public?Notebook()?{

frame?=?new?JFrame();

frame.setTitle("未命名");

frame.setLayout(new?BorderLayout());

textArea?=?new?JTextArea();

textArea.setFont(new?Font("宋體",?Font.PLAIN,?18));//?設(shè)置默認(rèn)字體樣式字號(hào)

//?set?input?textArea?設(shè)置編輯區(qū)

textArea.setText("");

textArea.setEditable(false);

textArea.setLineWrap(autoLineWrap);//?設(shè)置自動(dòng)換行

jsp?=?new?JScrollPane(textArea);//?set?Scroll

jsb?=?jsp.getVerticalScrollBar();

jsb.addAdjustmentListener(new?AdjustmentListener()?{

public?void?adjustmentValueChanged(AdjustmentEvent?e)?{

int?i;

i?=?jsb.getUnitIncrement();

System.out.println(i);

}

});

frame.add(jsp,?BorderLayout.CENTER);

//?菜單

menuBar?=?new?JMenuBar();

file?=?new?JMenu("文件");

file.setMnemonic('F');

format?=?new?JMenu("格式");

search?=?new?JMenu("搜索");

help?=?new?JMenu("幫助");

menuBar.add(file);

menuBar.add(format);

menuBar.add(search);

menuBar.add(help);

//?文件菜單項(xiàng)

open?=?new?JMenuItem("打開...",?KeyEvent.VK_O);

exit?=?new?JMenuItem("退出");

file.add(open);

file.add(exit);

//?格式菜單項(xiàng)

//?autoLine?=?new?JCheckBoxMenuItem("自動(dòng)換行");

font?=?new?JMenuItem("字體...");

color?=?new?JMenuItem("顏色...");

background?=?new?JMenuItem("背景顏色...");

speed?=?new?JMenuItem("滾屏速度...");

//?format.add(autoLine);

format.add(font);

format.add(color);

format.add(background);

format.add(speed);

//?搜索菜單項(xiàng)

find?=?new?JMenuItem("查找...");

changeto?=?new?JMenuItem("轉(zhuǎn)到...");

search.add(find);

search.add(changeto);

//?幫助菜單項(xiàng)

helps?=?new?JMenuItem("幫助");

about?=?new?JMenuItem("關(guān)于");

help.add(helps);

help.add(about);

//?設(shè)置菜單條

menuBar.add(file);

menuBar.add(format);

menuBar.add(search);

menuBar.add(help);

frame.setJMenuBar(menuBar);

//?sped///

sped?=?new?Speed(jsb,?timer);

font1?=?new?font(textArea);

//?調(diào)用監(jiān)聽方法

addEventHandler();

//?////

textArea.addMouseListener(new?MouseListener()?{

public?void?mouseClicked(MouseEvent?e)?{

if?(e.getClickCount()?==?2)?{

timer.start();

}

if?(e.getClickCount()?==?1)?{

timer.stop();

}

}

public?void?mouseEntered(MouseEvent?arg0)?{

}

public?void?mouseExited(MouseEvent?arg0)?{

}

public?void?mousePressed(MouseEvent?arg0)?{

}

public?void?mouseReleased(MouseEvent?arg0)?{

}

});

//?監(jiān)聽上下鍵//

textArea.addKeyListener(new?KeyListener()?{

@Override

public?void?keyPressed(KeyEvent?arg0)?{

if?(arg0.getKeyCode()?==?KeyEvent.VK_UP)?{

jsb.setValue(jsb.getValue()?-?jsb.getUnitIncrement());

}

if?(arg0.getKeyCode()?==?KeyEvent.VK_DOWN)?{

jsb.setValue(jsb.getValue()?+?jsb.getUnitIncrement());

}

}

public?void?keyReleased(KeyEvent?arg0)?{

}

public?void?keyTyped(KeyEvent?arg0)?{

}

});

//

textArea.addMouseListener(new?MouseListener()?{

@Override

public?void?mouseClicked(MouseEvent?e)?{

if?(e.getClickCount()?==?2)?{

timer.start();

}

if?(e.getClickCount()?==?1)?{

timer.stop();

}

}

public?void?mouseEntered(MouseEvent?arg0)?{

}

public?void?mouseExited(MouseEvent?arg0)?{

}

public?void?mousePressed(MouseEvent?arg0)?{

}

public?void?mouseReleased(MouseEvent?arg0)?{

}

});

}

//?/////////初始化frame////////////////

protected?void?frameInit()?{

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

frame.setSize(d.width,?d.height);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Dimension?b?=?frame.getSize();

}

private?void?addEventHandler()?{

//?文件項(xiàng)的監(jiān)聽

open.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

fileOpen();

jsb.setValue(0);

}

});

exit.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

fileExit();

}

});

//?格式菜單的監(jiān)聽

font.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

font1.addEventHandler();

}

});

color.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

formatColor();

}

});

background.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

formatBackground();

}

});

speed.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

sped.liser();

}

});

}

//?////////文件項(xiàng)的方法/////////////////////////

private?void?fileOpen()?{

textArea.setText("");

JFileChooser?fileChooser?=?new?JFileChooser();

fileChooser.showOpenDialog(frame);

File?file?=?fileChooser.getSelectedFile();

if?(file?==?null)

return;

fileName?=?file.getName();//?獲得文件名

frame.setTitle(file.getAbsolutePath());

FileInputStream?fis?=?null;

BufferedReader?br?=?null;

try?{

fis?=?new?FileInputStream(file);

br?=?new?BufferedReader(new?InputStreamReader(fis));

String?str?=?null;

while?((str?=?br.readLine())?!=?null)?{

textArea.append(str?+?"\n");

}

System.out.println("打開成功");

textArea.setCaretPosition(0);

}?catch?(IOException?e1)?{

JOptionPane.showMessageDialog(frame,?"文件不存在或已被損壞");

}?finally?{

if?(br?!=?null)

try?{

br.close();

}?catch?(IOException?e)?{

}

if?(fis?!=?null)

try?{

fis.close();

}?catch?(IOException?e)?{

}

}

}

private?void?fileExit()?{

int?option?=?-1;

Object?options[]?=?{?"Yes",?"No"?};

option?=?JOptionPane.showOptionDialog(frame,?"是否退出閱讀？",?"exit",

JOptionPane.YES_NO_OPTION,?JOptionPane.QUESTION_MESSAGE,?null,

options,?options[0]);

switch?(option)?{

case?JOptionPane.YES_OPTION:

System.exit(0);

}

}

//?//////////////////////////////////////////////////////////

//?///////////////格式項(xiàng)的方法/////////////////////////////////

private?void?formatColor()?{

//?彈出顏色色選擇器對(duì)話框

Color?color?=?JColorChooser.showDialog(textArea,?"選擇顏色",?Color.BLACK);

textArea.setForeground(color);

}

private?void?formatBackground()?{

//?彈出顏色色選擇器對(duì)話框

Color?color?=?JColorChooser.showDialog(textArea,?"選擇顏色",?Color.BLACK);

textArea.setBackground(color);

}

//?////////////////////////////////////////////////////////////

public?static?void?main(String?args[])?{

Notebook?nt?=?new?Notebook();

nt.frameInit();

}

}

class?font?{

private?JTextArea?textArea;

private?JButton?ok,?cancel;

private?JComboBox?fontName,?fontSize,?fontStyle;

GraphicsEnvironment?ge;//?定義系統(tǒng)字體對(duì)象

String[]?size?=?{?"8",?"10",?"12",?"14",?"16",?"18",?"20",?"22",?"24",

"26",?"28",?"32",?"36",?"48",?"72",?"96"?};

String[]?style?=?{?"PLAIN",?"BOLD",?"ITALIC"?};

JFrame?jf?=?new?JFrame("字體設(shè)置");

public?font(JTextArea?textArea)?{

this.textArea?=?textArea;

JLabel?label1?=?new?JLabel(

"????字體?????????????????????????????????????????");

JLabel?label2?=?new?JLabel("?字號(hào)????????");

JLabel?label3?=?new?JLabel("?樣式????????");

ge?=?GraphicsEnvironment.getLocalGraphicsEnvironment();//?獲取系統(tǒng)字體

String[]?fontname?=?ge.getAvailableFontFamilyNames();

fontName?=?new?JComboBox(fontname);

fontSize?=?new?JComboBox(size);

fontStyle?=?new?JComboBox(style);

ok?=?new?JButton("確定");

cancel?=?new?JButton("取消");

jf.setLayout(new?BorderLayout());

JPanel?p1?=?new?JPanel();

JPanel?p2?=?new?JPanel();

JPanel?p3?=?new?JPanel();

p1.add(label1);

p1.add(label2);

p1.add(label3);

p2.add(fontName);

p2.add(fontSize);

p2.add(fontStyle);

p3.add(ok);

p3.add(cancel);

jf.add(p1,?BorderLayout.NORTH);

jf.add(p2,?BorderLayout.CENTER);

jf.add(p3,?BorderLayout.SOUTH);

jf.setSize(360,?200);

jf.setLocation(300,?200);

jf.setVisible(false);

jf.setResizable(false);

//?addEventHandler();

}

void?addEventHandler()?{

jf.setVisible(true);

ok.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

String?n1?=?(String)?fontName.getSelectedItem();

int?n2?=?fontStyle.getSelectedIndex();

String?n3?=?(String)?fontSize.getSelectedItem();

textArea.setFont(new?Font(n1,?n2,?Integer.parseInt(n3)));

jf.setVisible(false);

}

});

cancel.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?e)?{

jf.setVisible(false);//?

}

});

}

}

class?Speed?implements?ItemListener?{

private?JScrollBar?jsb;

private?JFrame?jfrm;

private?JLabel?jlb1;

//?JLabel?jlb2;

private?JButton?jbt;

//?private?JCheckBox?jcheckbox;

private?JComboBox?jcbb;

Integer?sudu;

Timer?timer;

private?Integer?msg[]?=?{?1,?10,?18,?36,?48,?66,?80,?90?};

public?Speed(final?JScrollBar?jsb,?final?Timer?timer)?{

this.jsb?=?jsb;

this.timer?=?timer;

jfrm?=?new?JFrame();

jlb1?=?new?JLabel("滾屏速度");

jbt?=?new?JButton("確定");

//?jcheckbox?=?new?JCheckBox("自動(dòng)滾屏");

jcbb?=?new?JComboBox(msg);

jfrm.setLayout(new?FlowLayout());

jfrm.add(jlb1);

jfrm.add(jcbb);

//?jfrm.add(jcheckbox);?jfrm.add(jbt);

jfrm.setVisible(false);

jcbb.setEditable(true);

jfrm.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);

jfrm.pack();

}

void?liser()?{

jfrm.setVisible(true);

//?/////監(jiān)聽復(fù)選框///////////////////////////

jcbb.addItemListener(this);

/*

?*?jcbb.addActionListener(new?ActionListener(){?public?void

?*?actionPerformed(ActionEvent?e)?{

?*?jcbb.setSelectedIndex(jcbb.getSelectedIndex());?}});

?*/

//?///////監(jiān)聽按鈕//////////////////////////

jbt.addActionListener(new?ActionListener()?{

public?void?actionPerformed(ActionEvent?arg0)?{

jfrm.setVisible(false);

}

});

//?////////////////////////////////////

/*

?*?jcheckbox.addItemListener(new?ItemListener(){?public?void

?*?itemStateChanged(ItemEvent?e)?{?if(jcheckbox.isSelected()==false){

?*?System.out.println("false");?timer.stop();?}

?*?if(jcheckbox.isSelected()==true){?timer.start();?}?}}?);

?*/

}

@Override

public?void?itemStateChanged(ItemEvent?arg0)?{

sudu?=?(Integer)?jcbb.getSelectedItem();

//?jcbb.setSelectedItem(msg);//jcbb.updateUI()?;

jsb.setUnitIncrement(sudu.intValue());

}

}

怎樣高效的閱讀JavaWeb項(xiàng)目源代碼

首先要理清楚代碼結(jié)構(gòu)和業(yè)務(wù)結(jié)構(gòu)（應(yīng)該有些文檔或者大的流程圖），這是閱讀具體代碼的前提。

閱讀Java?web項(xiàng)目的代碼：

你需要找到

View層的代碼：前端頁(yè)面、圖片、資源文件都在其中。

Controller層的代碼：控制試圖與模型層以及數(shù)據(jù)傳遞。

Service層的代碼：業(yè)務(wù)邏輯。

Dao層的代碼：數(shù)據(jù)庫(kù)訪問邏輯。

從web.xml?-?appcontext.xml?-?xxx

網(wǎng)站標(biāo)題：java閱讀小說項(xiàng)目代碼 java小說閱讀器代碼
文章URL：http://www.dlmjj.cn/article/dosjjcd.html