Ad:

Java Discussion Thread
Unsolved
Views: 17232

Page 1
2
Next

You are currently viewing page 1 of this multi-page discussion thread

Jul 17th, 2005

put the Dos 's command into java program?

Expand Post »

i would like to put the command Dos into java program. how i using the java to perform command function.
for example, when we type ipconfig this command into command prompt, it will display my pc's ip right. so how i use java program when a user run my program it will perform that function.

another question is when we write the java program right, the java interpreter will created one file called *.class right. but i need to make this can run in each pc even though that pc is no install java. like the exe file can run in anyway just a double click it and the program will run.
thanks for help

Similar Threads

Selection Sort in java in Java
Running java command thru java program in Java
command prompt +java in Java

v2_vehooi

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

6 posts
since Jun 2005

Permalink

Jul 17th, 2005

Re: put the Dos 's command into java program?

Maybe this will work:

Process p = Runtime.Runtime().exec("ipconfig");

server_crash

Reputation Points: 113

Solved Threads: 19

Postaholic

Offline

2,108 posts
since Jun 2004

Permalink

Jul 17th, 2005

Re: put the Dos 's command into java program?

can u write the whole program for me because i just copy this syntax, it cant work. maybe i should add any package?

v2_vehooi

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

6 posts
since Jun 2005

Permalink

Jul 18th, 2005

-1

Re: put the Dos 's command into java program?

Here's code for the lazy man. Just change the host name to your computer name, because I'm not doing that for you too. If you use "localhost", it'll just return the local loopback IP.

Java Syntax (Toggle Plain Text)
import java.net.*;
 
class NetJunk
{
   public static void main () throws UnknownHostException
   {
	  String host = "Newton";
	  InetAddress ia = InetAddress.getByName(host);
 
	  System.out.println ("IP Address = " + ia.getHostAddress());
   }
}
import java.net.*;

class NetJunk
{
   public static void main () throws UnknownHostException
   {
	  String host = "Newton";
	  InetAddress ia = InetAddress.getByName(host);
   
	  System.out.println ("IP Address = " + ia.getHostAddress());
   }
}

Phaelax

Reputation Points: 92

Solved Threads: 51

Practically a Posting Shark

Offline

856 posts
since Mar 2004

Permalink

Jul 18th, 2005

Re: put the Dos 's command into java program?

Quote originally posted by Phaelax ...

Here's code for the lazy man. Just change the host name to your computer name, because I'm not doing that for you too. If you use "localhost", it'll just return the local loopback IP.
Java Syntax (Toggle Plain Text)
import java.net.*;
 
class NetJunk
{
   public static void main () throws UnknownHostException
   {
	  String host = "Newton";
	  InetAddress ia = InetAddress.getByName(host);
 
	  System.out.println ("IP Address = " + ia.getHostAddress());
   }
}
import java.net.*; class NetJunk { public static void main () throws UnknownHostException { String host = "Newton"; InetAddress ia = InetAddress.getByName(host); System.out.println ("IP Address = " + ia.getHostAddress()); } }

are you say i'm a lazy man!!!
well, fine but this program just solve that particular problem. what i need is i want use all the command's function apply into java program. IP is an example. let say i can use command prompt to shutdown my computer ( or even restart, logoff etc) just type shutdown in the command prompt. so shutdown this word is the one of the Dos command. now i would like to write a java program to control those command. What is the code for java can support this? What is the syntax?
is ok if you have no idea, never mind
anyway thanks you

v2_vehooi

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

6 posts
since Jun 2005

Permalink

Jul 18th, 2005

Re: put the Dos 's command into java program?

import java.io.*;

server_crash

Reputation Points: 113

Solved Threads: 19

Postaholic

Offline

2,108 posts
since Jun 2004

Permalink

Jul 19th, 2005

Re: put the Dos 's command into java program?

Quote originally posted by server_crash ...

import java.io.*;

can you explain more detail. pls really help me.
thaks ya

v2_vehooi

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

6 posts
since Jun 2005

Permalink

Jul 19th, 2005

Re: put the Dos 's command into java program?

If you are doing any programing in java then you should know to use your two best friends the API and Google. The api will explain almost everything for you. How do you expect us to help you if you can't help yourself to the simple things.

cyrus104

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

1 posts
since Jul 2005

Permalink

Jul 21st, 2005

Re: put the Dos 's command into java program?

Just because I feel like helping:

Java Syntax (Toggle Plain Text)
//CommandLine.java
import java.util.*;
import java.io.*;
public abstract class CommandLine
{
 public static void exec(String cmd) throws Exception
 {
  Runtime rt = Runtime.getRuntime();
  Process proc = rt.exec(cmd.toString());
  StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR");
  StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT");
  errorGobbler.start();
  outputGobbler.start();
 }
 public static void exec(String cmd, OutputStream output) throws Exception
 {
  Runtime rt = Runtime.getRuntime();
  Process proc = rt.exec(cmd.toString());
  StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR", output);
  StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT", output);
  errorGobbler.start();
  outputGobbler.start();
 }
}
//CommandLine.java
import java.util.*;
import java.io.*;
public abstract class CommandLine
{
 public static void exec(String cmd) throws Exception
 {
  Runtime rt = Runtime.getRuntime();
  Process proc = rt.exec(cmd.toString());
  StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR");
  StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT");
  errorGobbler.start();
  outputGobbler.start();
 }
 public static void exec(String cmd, OutputStream output) throws Exception
 {
  Runtime rt = Runtime.getRuntime();
  Process proc = rt.exec(cmd.toString());
  StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(), "ERROR", output);
  StreamGobbler outputGobbler = new StreamGobbler(proc.getInputStream(), "OUTPUT", output);
  errorGobbler.start();
  outputGobbler.start();
 }
}

Java Syntax (Toggle Plain Text)
//StreamGobbler.java
import java.util.*;
import java.io.*;
class StreamGobbler extends Thread
{
	InputStream is;
	String type;
	OutputStream os;
 
	StreamGobbler(InputStream is, String type)
	{
		this(is, type, null);
	}
	StreamGobbler(InputStream is, String type, OutputStream redirect)
	{
		this.is = is;
		this.type = type;
		this.os = redirect;
	}
 
	public void run()
	{
		try
		{
			PrintWriter pw = null;
			if (os != null)
				pw = new PrintWriter(os);
 
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);
			String line=null;
			while ( (line = br.readLine()) != null)
			{
				if (pw != null)
					pw.println(line);
				System.out.println(line);	
			}
			if (pw != null)
				pw.flush();
		} catch (IOException ioe)
			{
			ioe.printStackTrace();  
			}
	}
}
//StreamGobbler.java
import java.util.*;
import java.io.*;
class StreamGobbler extends Thread
{
	InputStream is;
	String type;
	OutputStream os;
	
	StreamGobbler(InputStream is, String type)
	{
		this(is, type, null);
	}
	StreamGobbler(InputStream is, String type, OutputStream redirect)
	{
		this.is = is;
		this.type = type;
		this.os = redirect;
	}
	
	public void run()
	{
		try
		{
			PrintWriter pw = null;
			if (os != null)
				pw = new PrintWriter(os);
				
			InputStreamReader isr = new InputStreamReader(is);
			BufferedReader br = new BufferedReader(isr);
			String line=null;
			while ( (line = br.readLine()) != null)
			{
				if (pw != null)
					pw.println(line);
				System.out.println(line);	
			}
			if (pw != null)
				pw.flush();
		} catch (IOException ioe)
			{
			ioe.printStackTrace();  
			}
	}
}

Compile these two classes, then call

Java Syntax (Toggle Plain Text)
CommandLine.exec("ipconfig");
CommandLine.exec("ipconfig");

Replace ipconfig with whatever command you want to execute.

mmiikkee12

Reputation Points: 17

Solved Threads: 5

Posting Whiz in Training

Offline

274 posts
since Oct 2004

Permalink

Jul 22nd, 2005

Re: put the Dos 's command into java program?

Gotta love people who want help taking an os independent programming language to make a program that is usable in windows only.

Sauce

Reputation Points: 10

Solved Threads: 0

Junior Poster in Training

Offline

55 posts
since Jul 2005

Page 1
2
Next

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in Java Forum Timeline: array stack infix and postfix

Next Thread in Java Forum Timeline: using cardlayout in java

DaniWeb Message

Cancel Changes

User Name
Password