Go语言视频零基础入门到精通

javalearner · 发表于 2014-10-2 08:21:26

/***********************************************
* NETDEMO.CLASS (MAIN KERNEL OF "MOLECULE" VOS)
*
* WRITTEN BY "Fubin"
* COMPILED IN JDK1.5.*
* My MSN:yonghe169@163.com
*
*这是一个十分重要的模仿Dos界面的系统！非常重要。可以
* 用在很多处理输入程序的地方
*例如：Sisco等，可以写专门的接口工作程序
***********************************************/
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import java.text.*;

运行图：
[img]http://img.javaxxz.com/2014/10/2/082124828.gif[/img]
public class NetDemo extends Panel implements KeyListener{
static Frame myFrame;
TextField tf;
TextArea ta;
Panel p1,p2,p3;
Scrollbar sb1,sb2;
String currentPath=System.getProperty("user.dir");
String prompt=">",Temp="",drive_Name="";
int commandNum=0,tempCommand=0;
Object val;
ArrayList ll=new ArrayList();
String currentContent="",path="";
boolean editOn;
public NetDemo() {
ta=new TextArea(25,75);
tf=new TextField(75);
p1=new Panel();
p1.setBackground(Color.lightGray);
p2=new Panel();
p2.setBackground(Color.lightGray);
setLayout(new BorderLayout());
p1.add(ta,BorderLayout.NORTH);
add(p1,BorderLayout.NORTH);
p2.add(tf,BorderLayout.NORTH);
add(p2,BorderLayout.SOUTH);
Font f=new Font("Monospaced",Font.PLAIN,15);
ta.setFont(f);
tf.setFont(f);
ta.setBackground(Color.white);
ta.setForeground(Color.black);
tf.setBackground(Color.white);
tf.setForeground(Color.black);
ta.append("Title: Molecule Virtual OS
");
ta.append("Version: Pre-beta Kernel, JVM version 1.2/1.3
");
ta.append("Written by: Amitava Sen
");
ta.append("Contact: write2sen@hotmail.com
");
ta.append("Dated: February, 2001.
");
ta.append(currentPath+prompt);
//ta.setEditable(true);
tf.addKeyListener(this);
requestFocus();
tf.requestFocus();
}
void p(String s){ta.append(s);}
public void keyTyped(KeyEvent ke) {};
public void keyReleased(KeyEvent ke) {};
public void keyPressed(KeyEvent ke) {
if (editOn==false) commandControl(ke);
if (editOn==true) edit(ke);
}
//////////////////////////////////////////////////
////////////////// EDIT MODE /////////////////////
//////////////////////////////////////////////////
protected void edit(KeyEvent ke) {
editOn=true;
char c = ke.getKeyChar();
String commandEnter=tf.getText();
StringTokenizer tokenizer=new StringTokenizer(commandEnter);
if (c=="
") {
if (commandEnter.equals("exit")) {
ta.setText(currentContent);
//ta.setEditable(false);
tf.setText("");
editOn=false;
ta.append(currentPath+prompt);
myFrame.setTitle("Molecule (NetDemo Console) - Type "help" or "?" for Help");
}
else if (commandEnter.startsWith("save") || commandEnter.startsWith("save ")) {
String token=tokenizer.nextToken();
String taContent=ta.getText();
char opchar;
int count,countLimit=taContent.length();
while(tokenizer.hasMoreTokens()){
try {
token=tokenizer.nextToken();
FileOutputStream fout=new FileOutputStream(drive_Name+currentPath+"/"+token);
for (count=0;count< countLimit;count++){
opchar=taContent.charAt(count);
fout.write((int)opchar);
}
fout.close();
}catch(Exception e){
ta.append("Error: Can"t save program ""+token+""
");
}
}
tf.setText("");
tf.requestFocus();
}
else {
tf.setText("");
ta.requestFocus();
}
}
}
//////////////////////////////////////////////////
/////////////// COMMAND MODE /////////////////////
//////////////////////////////////////////////////
protected void commandControl(KeyEvent ke) {
editOn=false;
char c = ke.getKeyChar();
int key=ke.getKeyCode();
if (key==KeyEvent.VK_UP) {
tempCommand=tempCommand-1;
try {
val=ll.get(tempCommand);
String commandSel=(String)val;
tf.setText("");
tf.setText(commandSel);
}catch(Exception e){}
}
if (key==KeyEvent.VK_DOWN) {
tempCommand=tempCommand+1;
try {
val=ll.get(tempCommand);
String commandSel=(String)val;
tf.setText("");
tf.setText(commandSel);
}catch(Exception e){}
}
if (c=="
"){
String ta_Address="",command="";
String commandEnter=tf.getText();
commandEnter=commandEnter.trim();
int i,commandMode;
if (!commandEnter.equals("")) {
ll.add(commandEnter);
commandNum=commandNum+1;
tempCommand=tempCommand+1;
//System.out.println(ll+" "+commandNum);
}
try {
String tmp1=currentPath+"/"+commandEnter;
String tmp2=tmp1.replace("","/");
StringTokenizer st1=new StringTokenizer(tmp2);
String tmp3=st1.nextToken();
String tmp4=st1.nextToken();
tmp2=tmp3+tmp4;
//System.out.println(tmp2);
}catch(Exception e){}
tf.setText("");
StringTokenizer tokenizer=new StringTokenizer(commandEnter);
////////////// IP ////////////////////
if (commandEnter.startsWith("ip") || commandEnter.startsWith("ip "))
{
int ServerError=0;
ta.setEditable(true);
ta.append(commandEnter+"
");
//ta.setEditable(false);
String token=tokenizer.nextToken();
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
InetAddress SW[]=InetAddress.getAllByName(token);
for(i=0;i< SW.length;i++)
ta_Address=ta_Address+SW[i]+"
";
ta.setEditable(true);
ta.append(ta_Address+"
");
//ta.setEditable(false);
}catch(Exception e)
{
ServerError=1;
String cannotFindServer="";
cannotFindServer=token;
ta.append("Error: Can"t find server ""+cannotFindServer+""
");}
}
if (ServerError==1){
ta.append(currentPath+prompt);
tf.requestFocus();
}
}
////////////// URL INFORMATION //////////////////
if (commandEnter.startsWith("urlinfo") || commandEnter.startsWith("urlinfo "))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
//ta.setEditable(false);
String token=tokenizer.nextToken();
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
URL hp=new URL(token);
URLConnection hpCon=hp.openConnection();
ta.append("""+token+"" available data:
");
ta.append("Date: "+new Date(hpCon.getDate())+"
");
ta.append("Content/Type: "+hpCon.getContentType()+"
");
ta.append("Last Modified: "+new Date(hpCon.getLastModified())+"
");
ta.setEditable(true);
ta.append(ta_Address+"
");
//ta.setEditable(false);
}catch(Exception e)
{
String cannotFindServer="";
cannotFindServer=token;
ta.append("Error: Can"t find server ""+cannotFindServer+""
");
ta.append("Usage: urlinfo http://"+cannotFindServer+"
");}
}
ta.append(currentPath+prompt);
tf.requestFocus();
}
////////////// RUN ////////////////////
else if (commandEnter.startsWith("run ") || commandEnter.startsWith("run"))
{
int runError=0;
ta.setEditable(true);
ta.append(commandEnter+"
");
//ta.setEditable(false);
String token=tokenizer.nextToken();
String ta_Run="";
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
Runtime r=Runtime.getRuntime();
Process p=null;
try{
p=r.exec(token);
ta_Run=ta_Run+token+"
";
ta.setEditable(true);
}catch(Exception e){
String cannotRunFile="";
cannotRunFile=token;
ta.append("Error: Can"t run program ""+cannotRunFile+""
");
}
}
ta.append("The file(s) started are:
"+ta_Run+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// WHOIS ////////////////////
else if (commandEnter.startsWith("whois ") || commandEnter.startsWith("whois"))
{
int whois=0,ch;
ta.setEditable(true);
ta.append(commandEnter+"
");
//ta.setEditable(false);
String token=tokenizer.nextToken();
String ta_Whois="",Whois="";
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
Socket s=new Socket("internic.net",43);
InputStream in=s.getInputStream();
OutputStream out=s.getOutputStream();
Whois=token+"
";
byte buf[]=Whois.getBytes();
out.write(buf);
while ((ch=in.read())!=-1) {
ta_Whois=ta_Whois+(char)ch;
}
ta.append(ta_Whois);
s.close();
}catch(Exception e){
String cannotFindWhois="";
cannotFindWhois=token;
ta.append("Error: Can"t find server ""+cannotFindWhois+""
");
}
}
//s.close();
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// FIND FILE /////////////
else if (commandEnter.startsWith("find ") || commandEnter.startsWith("find"))
{
boolean findFile;
ta.setEditable(true);
ta.append(commandEnter+"
");
String token=tokenizer.nextToken();
String ta_FileExists="",ta_FileDoesNotExist="";
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
File isHere=new File(token);
findFile=isHere.exists();
if (findFile==true)
{
ta_FileExists=ta_FileExists+token+"
";
}
else {
ta_FileDoesNotExist=ta_FileDoesNotExist+token+"
";
}
}catch(Exception e){ta.append("Error: Can"t execute command "find"
");}
}
ta.append("The file(s) exist(s):
");
ta.append(ta_FileExists);
ta.append("The file(s) do(es) not exist(s):
");
ta.append(ta_FileDoesNotExist+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// BLACK VIDEO ///////////
else if (commandEnter.equalsIgnoreCase("bv")) {
ta.setBackground(Color.black);
tf.setBackground(Color.black);
ta.setForeground(Color.lightGray);
tf.setForeground(Color.lightGray);
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// NORMAL VIDEO ///////////
else if (commandEnter.equalsIgnoreCase("nv")) {
ta.setBackground(Color.white);
tf.setBackground(Color.white);
ta.setForeground(Color.black);
tf.setForeground(Color.black);
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// ORANGE VIDEO ///////////
else if (commandEnter.equalsIgnoreCase("ov")) {
ta.setBackground(Color.black);
tf.setBackground(Color.black);
ta.setForeground(Color.orange);
tf.setForeground(Color.orange);
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// YELLOW VIDEO ///////////
else if (commandEnter.equalsIgnoreCase("yv")) {
ta.setBackground(Color.black);
tf.setBackground(Color.black);
ta.setForeground(Color.yellow);
tf.setForeground(Color.yellow);
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// GREEN VIDEO ///////////
else if (commandEnter.equalsIgnoreCase("gv")) {
ta.setBackground(Color.black);
tf.setBackground(Color.black);
ta.setForeground(Color.green);
tf.setForeground(Color.green);
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// DATE ////////////////////
else if (commandEnter.equalsIgnoreCase("date")) {
Date date=new Date();
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append("Current date: "+date+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
tf.requestFocus();
}
////////////// CLS ////////////////////
else if (commandEnter.equalsIgnoreCase("cls")) {
ta.setText("");
ta.setText(currentPath+prompt);
tf.requestFocus();
}
/////////// DIRECTORY ///////////////
else if (commandEnter.startsWith("dir ")){
int j=0;
ta.setEditable(true);
ta.append(commandEnter+"
");
try{
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
File dir=new File(token);
Temp=dir.getPath();
ta.append("Directory: "+dir.getPath()+"
");
p(dir.exists()?"":"The directory does"nt exist
");
String[] fileNames;
fileNames=dir.list();
for (j=0;j<=fileNames.length;j++) {
int fileSize=fileNames[j].length();
ta.append(fileNames[j]+" , "+"("+fileSize+" bytes)
");
}
}catch(Exception e){}
ta.append("
Total Files: "+j);
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////////////////////////////////////////
else if (commandEnter.equalsIgnoreCase("dir")){
ta.setEditable(true);
ta.append(commandEnter+"
");
int j=0;
try{
File dir=new File(drive_Name+currentPath);
ta.append("
Files
------
");
String[] fileNames;
fileNames=dir.list();
for (j=0;j<=fileNames.length;j++) {
//File f=new File(drive_Name+currentPath+fileNames[j]);
//System.out.println(currentPath);
File f=new File(fileNames[j]);
//if (f.isDirectory()) {
//ta.append(fileNames[j]+" , (directory)
");
//int fileSize=fileNames[j].length();
//long fileSize=f.length();
//long modTime=f.lastModified();
//ta.append(fileNames[j]+" , "+"("+fileSize+" bytes)
");
ta.append(fileNames[j]+"
");
//if (fileSize==0)ta.append(fileNames[j]+" , "+"(dir)
");
//}
//else {
// ta.append(fileNames[j]+" , (file)
");
//}
}
}catch(Exception e){}
ta.append("
Total Files: "+j);
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// CHANGE DIRECTORY //////////////
else if (commandEnter.startsWith("cd ")) {
String ta_List="",currentDir="";
ta.setEditable(true);
ta.append(commandEnter+"
");
try{
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
File cd=new File(drive_Name+currentPath+"/"+token);
path=drive_Name+currentPath+"/"+token;
if (cd.exists()==true)currentPath=path;
if (cd.exists()==false) ta.append("Error: File does"nt exist
");
}catch(Exception e){ta.append("Error: Can"t execute command "cd"
"); }
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
tf.requestFocus();
}
////////////////////////////////////////////////
else if (commandEnter.equalsIgnoreCase("cd"))
ta.append(commandEnter+"
"+System.getProperty("user.dir")+"
"+currentPath+prompt);
////////////////////////////////////////////////
else if (commandEnter.equalsIgnoreCase("cd..")){
String ta_List="",currentDir="",rootDir="";
ta.setEditable(true);
ta.append(commandEnter+"
");
try {
File dir=new File(currentPath);
if (dir.exists()==false)ta.append("Error: Can"t change directory
");
currentPath=dir.getParent();
rootDir=dir.getPath();
if (currentPath==null) {currentPath=rootDir;}
}catch(Exception e){ta.append("Error: Can"t execute command "cd"
");}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
tf.requestFocus();
}
//////////////////// SHOW FILE //////////////////
else if (commandEnter.startsWith("show ") || commandEnter.startsWith("show"))
{
int ic;
ta.setEditable(true);
ta.append(commandEnter+"
");
String token=tokenizer.nextToken();
String fileContent="";
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
FileInputStream fin =new FileInputStream(drive_Name+currentPath+"/"+token);
do {
ic=fin.read();
if (ic!=-1) fileContent=fileContent+(char)ic;
} while(ic!=-1);
fin.close();
ta.append(fileContent);
fileContent="";
}catch(Exception e){
String cannotShowFile="";
cannotShowFile=token;
ta.append("Error: Can"t show file ""+cannotShowFile+""
");
}
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
//////////////////// COPY FILE //////////////////
else if (commandEnter.startsWith("copy ") || commandEnter.startsWith("copy"))
{
int ic;
ta.setEditable(true);
ta.append(commandEnter+"
");
String fileContent="";
FileInputStream fin;
FileOutputStream fout;
try{
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
fin=new FileInputStream(drive_Name+currentPath+"/"+token);
token=tokenizer.nextToken();
fout=new FileOutputStream(drive_Name+currentPath+"/"+token);
do {
ic=fin.read();
if (ic!=-1) fout.write(ic);
} while(ic!=-1);
fin.close();
fout.close();
}catch(Exception e){
ta.append("Error: Can"t execute "copy" command
");
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
//////////////////// RENAME FILE //////////////////
else if (commandEnter.startsWith("ren ") || commandEnter.startsWith("ren"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
try{
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
File oldFile=new File(drive_Name+currentPath+"/"+token);
if (oldFile.exists()==false) ta.append("Error: File ""+oldFile+"" does"nt exist
");
token=tokenizer.nextToken();
File newFile=new File(drive_Name+currentPath+"/"+token);
oldFile.renameTo(newFile);
}catch(Exception e){
ta.append("Error: Can"t execute "ren" command
");
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
//////////////////// DELETE FILE //////////////////
else if (commandEnter.startsWith("kill ") || commandEnter.startsWith("kill"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
String token=tokenizer.nextToken();
while(tokenizer.hasMoreTokens()){
try{
token=tokenizer.nextToken();
File killFile=new File(drive_Name+currentPath+"/"+token);
if (killFile.exists()==false) ta.append("Error: File ""+killFile+"" does"nt exist
");
killFile.delete();
}catch(Exception e){
ta.append("Error: Can"t execute "del" command
");
}
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
//////////////////// MAKE DIRECTORY //////////////
else if (commandEnter.startsWith("md ") || commandEnter.startsWith("md"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
while(tokenizer.hasMoreTokens()){
try{
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
File md=new File(drive_Name+currentPath+"/"+token);
md.mkdir();
}catch(Exception e){
ta.append("Error: Can"t execute "md" command
");
}
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
//////////////////// EDIT //////////////
else if (commandEnter.startsWith("edit ") || commandEnter.startsWith("edit"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
currentContent=ta.getText();
int ic;
String fileContent="",currentFile="";
String token=tokenizer.nextToken();
ta.setText("");
try{
token=tokenizer.nextToken();
currentFile=token;
FileInputStream fin =new FileInputStream(drive_Name+currentPath+"/"+token);
do {
ic=fin.read();
if (ic!=-1) fileContent=fileContent+(char)ic;
} while(ic!=-1);
fin.close();
ta.append(fileContent);
}catch(Exception e){}
//ta.setText("");
editOn=true;
myFrame.setTitle("NetDemo Console - Edit Mode (Type "exit" to quit) - "+currentFile);
ta.requestFocus();
}
//////////////////// LOCAL DATE /////////////////
else if (commandEnter.startsWith("local ") || commandEnter.startsWith("local"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
String token=tokenizer.nextToken();
Date date=new Date();
DateFormat df;
Locale country=Locale.US;
try{
token=tokenizer.nextToken();
if (token.equals("-us")) {
ta.append("United States:
");
country=Locale.US;
}
if (token.equals("-uk")) {
ta.append("United Kingdom:
");
country=Locale.UK;
}
if (token.equals("-jp")) {
ta.append("Japan:
");
country=Locale.JAPAN;
}
if (token.equals("-kr")) {
ta.append("Korea:
");
country=Locale.KOREA;
}
if (token.equals("-fr")) {
ta.append("France:
");
country=Locale.FRANCE;
}
if (token.equals("-gr")) {
ta.append("Germany:
");
country=Locale.GERMANY;
}
if (token.equals("-it")) {
ta.append("Italy:
");
country=Locale.ITALY;
}
if (token.equals("-ca")) {
ta.append("Canada:
");
country=Locale.CANADA;
}
if (token.equals("-ch")) {
ta.append("China:
");
country=Locale.CHINA;
}
if (token.equals("-tw")) {
ta.append("Taiwan:
");
country=Locale.CHINA;
}
df=DateFormat.getTimeInstance(DateFormat.FULL, country);
ta.append("Time: "+df.format(date)+"
");
df=DateFormat.getDateInstance(DateFormat.FULL, country);
ta.append("Date: "+df.format(date)+"
");
}catch(Exception e){
ta.append("Usage: local -us (United States)
");
ta.append(" local -uk (United Kingdom)
");
ta.append(" local -gr (Germany)
");
ta.append(" local -fr (France)
");
ta.append(" local -ca (Canada)
");
ta.append(" local -it (Italy)
");
ta.append(" local -ch (China)
");
ta.append(" local -kr (Korea)
");
ta.append(" local -jp (Japan)
");
}
ta.append("
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// SORT /////////////////////
else if (commandEnter.startsWith("sort ") || commandEnter.startsWith("sort"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
String token=tokenizer.nextToken();
TreeSet ts=new TreeSet();
while(tokenizer.hasMoreTokens()){
token=tokenizer.nextToken();
try{
ts.add(token);
}catch(Exception e){
ta.append("Error: Can"t execute command "sort"
");
}
}
ta.append("The sorted list:
");
ta.append(ts+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// CHECK MEMORY ////////////
else if (commandEnter.equalsIgnoreCase("memcheck")) {
Runtime r=Runtime.getRuntime();
long mem1;
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append("Total Memory: "+r.totalMemory()+" bytes"+"
");
ta.append("Initial free Memory: "+r.freeMemory()+" bytes"+"
");
r.gc();
mem1=r.freeMemory();
ta.append("Free memory after Garbage collection: "+mem1+" bytes
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// OS INFORMATION //////////
else if (commandEnter.equalsIgnoreCase("osinfo")) {
ta.setEditable(true);
ta.append(commandEnter+"
");
String os_arch="",os_name="",os_version="",usr_Name="",usr_Home="";
os_arch=System.getProperty("os.arch");
os_name=System.getProperty("os.name");
os_version=System.getProperty("os.version");
usr_Name=System.getProperty("user.name");
usr_Home=System.getProperty("user.home");
ta.append("OS Architecture: "+os_arch+" type
");
ta.append("OS Name: "+os_name);
if (os_name.equals("Windows 95"))ta.append("(Windows 98/ME)
");
ta.append("OS Version: "+os_version+"
");
ta.append("OS Registered to: "+usr_Name+"
");
ta.append("OS Installation: "+usr_Home+"
");
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// QUIT ////////////////////
else if (commandEnter.equalsIgnoreCase("quit")) {
System.exit(0);
}
////////////// ////////////////////
else if (commandEnter.equals("")) {
ta.append("
");
ta.append(currentPath+prompt);
tf.requestFocus();
}
////////////// PROMPT ////////////////////
else if (commandEnter.startsWith("prompt ") || commandEnter.startsWith("prompt"))
{
ta.setEditable(true);
ta.append(commandEnter+"
");
try {
String token=tokenizer.nextToken();
token=tokenizer.nextToken();
prompt=token;
} catch(Exception e) {t
a.append("Error: Parameter missing in "prompt"
Usage: prompt anyword
");}
ta.append(currentPath+prompt);
//ta.setEditable(false);
}
////////////// HELP ////////////////////
else if (commandEnter.equalsIgnoreCase("help") || commandEnter.equalsIgnoreCase("?")) {
ta.setEditable(true);
ta.append(commandEnter+"
");
ta.append("----------|---------------------------|-----------------------------
");
ta.append(" COMMAND | MEANING | EXAMPLE
");
ta.append("----------|---------------------------|-----------------------------
");
ta.append(" ip | Internet Protocol | ip yahoo.com hotmail.com
");
ta.append(" run | Run Program | run calc notepad word prog
");
ta.append(" date | Shows Date | date
");
ta.append(" cls | Clears Screen | cls
");
ta.append(" cd | Changes directory | cd Programs
");
ta.append(" copy | Copy files | copy readme.txt newreadme.txt
");
ta.append(" dir | Shows Directory | dir
");
ta.append(" memcheck | Checks Memory | memcheck
");
ta.append(" prompt | Changes prompt sign | prompt >>>
");
ta.append(" urlinfo | Gives URL information | urlinfo http://www.yahoo.com
");
ta.append(" sort | Sorts given data | sort bad perfect great
");
ta.append(" edit | Goes to Edit mode | edit filename(optional)
");
ta.append(" find | Finds file | find prog.dbm hello.txt
");
ta.append(" kill | Deletes file | kill file1.txt file2.txt
");
ta.append(" save | Saves file in edit mode | save file1 file2 file3
");
ta.append(" local | Shows country Time & Date | local
");
ta.append(" nv | Normal Video | nv
");
ta.append(" bv | Black Video | bv
");
ta.append(" gv | Green Video | gv
");
ta.append(" ov | Orange Video | ov
");
ta.append(" yv | Yellow Video | yv
");
ta.append(" ren | Rename files | ren oldName.txt newName.txt
");
ta.append(" md | Creates new Directory | md newDirectory
");
ta.append(" show | Shows file content | show readme.txt
");
ta.append(" osinfo | OS Information | osinfo
");
ta.append(" exit | Exits from Edit Mode | exit
");
ta.append(" help | Shows help information | help
");
ta.append(" ? | Shows help information | ?
");
ta.append(" whois | Gives information of site | whois internic.net dotcom.com
");
ta.append(" quit | Quits NetDemo / Edit mode | quit
");
ta.append(currentPath+prompt);
tf.requestFocus();
}
////////////// ERROR ////////////////////
else
{
ta.setEditable(true);
ta.append(commandEnter+"
");
String temp=currentPath+"/"+commandEnter;
String temp2=temp.replace(""," ");
StringTokenizer st=new StringTokenizer(temp2);
String temp3=st.nextToken();
String temp4=st.nextToken();
temp2=temp3+temp4;
//System.out.println(temp2);
try {
Runtime r=Runtime.getRuntime();
Process p=null;
p=r.exec(temp2);
}catch(Exception e){ta.append("Error: Illegal command call
");}
ta.append(currentPath+prompt);
//ta.setEditable(false);
tf.requestFocus();
}
}
}
public static void main(String args[]) throws Exception{
myFrame=new Frame("Molecule (NetDemo Console) - Type "help" or "?" for Help");
NetDemo nd=new NetDemo();
myFrame.add(nd);
myFrame.setSize(600,400);
myFrame.setLocation(200,100);
myFrame.pack();
myFrame.setResizable(false);
myFrame.show();
myFrame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we)
{System.exit(0);}
});
}
}

复制代码

源码下载：http://file.javaxxz.com/2014/10/2/082125547.zip

		自动登录	找回密码
密码			立即注册

JAVA高级面试进阶视频教程	Java架构师系统进阶VIP课程	分布式高可用全栈开发微服务教程	Go语言视频零基础入门到精通	Java架构师3期(课件+源码)
Java开发全终端实战租房项目视频教程	SpringBoot2.X入门到高级使用教程	大数据培训第六期全套视频教程	深度学习（CNN RNN GAN）算法原理	Java亿级流量电商系统视频教程
互联网架构师视频教程	年薪50万Spark2.0从入门到精通	年薪50万！人工智能学习路线教程	年薪50万！大数据从入门到精通学习路线	年薪50万！机器学习入门到精通视频教程
仿小米商城类app和小程序视频教程	深度学习数据分析基础到实战	最新黑马javaEE2.1就业课程	从 0到JVM实战高手教程	MySQL入门到精通教程

分布式高可用全栈开发微服务教程

Go语言视频零基础入门到精通

Java开发全终端实战租房项目视频教程

SpringBoot2.X入门到高级使用教程

大数据培训第六期全套视频教程

Java亿级流量电商系统视频教程

年薪50万Spark2.0从入门到精通

年薪50万！人工智能学习路线教程

[Java基础知识]模仿Dos界面的程序

相关帖子