Make System.in read input from a command prompt

How can i make System.in read input from a command prompt which is opened after program
is started. Please note that program starts without commad promt. Can u plz help?
sharmila

System.in DOES read from the command shell that you start the app in.
What you don't have is a prompt.
You should know about Java Almanac. There are code samples for simple things like I/O that everyone should know about. There's an example there to help you.
MOD

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Read Input from console !!!

Im am very new to java and trying to learn java ..
Now the problem i have is, I have to read input from console without using the BufferReader method..
Please tell me how to go about it..
I have a assignment to complete and im not able to figure out the way out.
Help ..

http://java.sun.com/j2se/1.4.1/docs/api/java/lang/System.html
Read first about the System class provided by Java.
Select the 'in' method of System class and it will take
you to the InputStream.
http://java.sun.com/j2se/1.4.1/docs/api/java/io/InputStream.html
An essay way of reading input is:
"value?"=System.in.read();
Try and see if this works. It will not use the
BufferReader portion, but it gives you another way
of reading from the console.

How to read input from handheld scanner on a keyboard port

Hi everybody,
i have an application that should read input from a scanner.
If i use a jTextField to input scanned data it works fine.
the problem is that i don't want to use any text component to input data into it.
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BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()))
null

How to read multiple lines from a command prompt?

I usually read from a command prompt like this:
String answer;
System.out.println("Please enter the required data");
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
answer = reader.readLine();
reader = null;
} catch (Exception e) {
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answer = "";
This has worked fine for years when all I wanted was one line answers.
Now I am trying to prompt for multiple line answers. Is there a way to read into a string array rather than just a string? What class would I use for that?
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The easiest approaches would be to read a line at a time until you've read enough lines, whether by a known fixed line count, or a token count, or by reading some sentinel toek, OR read a token at a time using Scanner.next() until you've determined you're done. Which one is more appropriate depends on your situation.

Code for how to read an integer array from the command prompt...

hello,
Could anyone give me the code for how to read an integer array from the command prompt...its very urgent!..

If you are using a recent version of Java (5 or later) you can use Scanner:
http://java.sun.com/javase/6/docs/api/java/util/Scanner.html
That page has some example code on it, too.

How to execute a scenario from Windows command prompt

Hi,
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java.sql.SQLException: socket creation error
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at org.hsqldb.jdbcDriver.getConnection(jdbcDriver.java:188)
at org.hsqldb.jdbcDriver.connect(jdbcDriver.java:166)
at com.sunopsis.sql.SnpsConnection.u(SnpsConnection.java)
at com.sunopsis.sql.SnpsConnection.c(SnpsConnection.java)
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Hi,
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Hi all the experts here, help me plz
this is the menu
R - Read a batch of student marks from a file
D - Display a table of student results
Q - Quit from the program
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biginner...THX guys

help me guys plz im really stuck man
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after user press 'R'
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Starting a WSAD server from the command prompt and not from the IDE UI

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Error 57 in invoking sqlplus command from DOS command prompt in Oracle Serv

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C:\Documents and Settings\Administrator>sqlplus "/as sysdba"
Error 57 initializing SQL*Plus
Error loading message shared library
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Yes sure!! .. The details of alert logs for today is herewith -
Thu Feb 28 12:30:02 2013
kewastUnPackStats(): bad magic 1 (0x0DFE82DA, 0)
kewastUnPackStats(): bad magic 1 (0x0DFE82DA, 0)
Thu Feb 28 12:36:02 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:36:19 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m000_5180.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m000_5180.trc:
ORA-00204: error in reading (block 1, # blocks 1) of control file
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:36:40 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:37:08 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:37:28 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:37:50 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:38:07 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m000_6256.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m000_6256.trc:
ORA-00204: error in reading (block 1, # blocks 1) of control file
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:38:12 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:38:34 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:38:56 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:39:31 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:39:47 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m001_7628.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:39:49 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m001_7628.trc:
ORA-00204: error in reading (block 1, # blocks 1) of control file
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:40:10 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:40:31 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_ckpt_3160.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Thu Feb 28 12:40:48 2013
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m002_2748.trc:
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.
Errors in file d:\app\collbrs\diag\rdbms\collbrs\collbrs\trace\collbrs_m002_2748.trc:
ORA-00204: error in reading (block 1, # blocks 1) of control file
ORA-00202: control file: 'D:\APP\COLLBRS\ORADATA\COLLBRS\CONTROL01.CTL'
ORA-27070: async read/write failed
OSD-04006: ReadFile() failure, unable to read from file
O/S-Error: (OS 1117) The request could not be performed because of an I/O device error.

Not running from the Command Prompt.

I have developed a SMTP based mail dispatch software using netbeans and Javamail. It is working fine while running within netbeans. But while runing it from the command prompt after making a build of it from netbeans, it gives error File not found exception for javamail as below.
=================================================
DEBUG: not loading resource: /META-INF/javamail.address.map
DEBUG: java.io.FileNotFoundException: C:\Program Files\Java\jre1.5.0_07\lib\java
mail.address.map (The system cannot find the file specified)
exception thrown:

JavaMail attempts to load resources from many places. The fact that some
are not found is not necessarily a problem. JavaMail will fall back to
resources included in the mail.jar file.
You need to look further in the debug output for the source of your problem.
(I assume you've included mail.jar in your CLASSPATH when running
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with JavaMail.)

Setting classpath from the command prompt

each time i try to set the classpath from the command prompt it is not always well done . can someone give a good format
i.e set classpath = ;c:\document and settings\ luke

each time i try to set the classpath from the command
prompt it is not always well done . can someone give
a good format
i.e set classpath = ;c:\document and settings\ lukeThe best way is not doing it at all.
Anyway, try:
set classpath = ".;c:\document and settings\luke"

How can i run application client from the command prompt ?

Hi,
I'm new to java & EJB. so can any body tell me the command to run the application client from the command prompt. Here is the code to print hello world:
/* Remote interface */
public interface Hello extends javax.ejb.EJBObject
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/* Home interface */
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/* Stateless session bean class */
public class HelloBean implements javax.ejb.SessionBean
     private javax.ejb.SessionContext ctx;
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          System.out.println("ejbActivate()");
     public void ejbPassivate(){
          System.out.println("ejbejbPassivate()");
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import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Properties;
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          hello.remove();
I have stored .java files in c:\ejb
I have successfully created the .class files using javac command in the following directory :
c:\ejb
I have also created Helloworld.ear file in c:\ejb using sun application server which contains the following files:
ejb-jar-ic.jar
app-client-ic.jar
sun-j2ee-ri.project
application.xml
sun-application.xml
Manifest.mf
But the problem is that i'm not able to run the HelloWorld.class file successfully from the command prompt. So please suggest me the comand.
Thanx in advance.
Best regards,
Pankaj

Hi
You can run this code from the command prompt in the same way as you run any other simple java program. The only thing is you need to set the Home and Local interfaces in the classpath.And obviously if u had deployed the bean in ur app server container, then its all over.
And one more thing is that u need to set the provider URL in the InitialContext created in the client program.
Thanks
Arun B

Calling r25con32.exe from the command prompt

how to call r25con32.exe from the run prompt.

Duplicate:
Calling r25con32.exe from the command prompt
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"Reader Extensions ES" in Command Prompt.

Is it possible to use the "Reader Extensions ES" through command prompt. Kindly advice me.
Thanks,
Prabudass

Ah, this is the first mention you have made of an Adobe product. Now,
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* Opening Acrobat in a browser
* Opening Adobe Reader in a browser
* Opening a preview in Designer
* Something else?
If you can describe in detail what you are doing with Adobe products
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in the specific forum for the Adobe product involved. Thanks and good
luck,
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Requesting user input from UNIX command window

New to this forum, and relatively new to Java......question for you......
Currently, I am able to request a .txt file from a user in my unix command window by having them type in the following command:
java Game (nameOfTextFile).txt
with the following code:
public class Game {
public static void main(String[ ] args) {
try{
reader = args[0];
catch(Exception g){
System.out.println(g);
where 'reader' holds the .txt file.
What I would like to do is as soon as the user types in the command:
java Game
it gives them the line:
"Please type the file to be input"
and at this point they type in:
(nameOfTextFile).txt
and then I can start working with the text file.
Any ideas?
Thanks

public class Game {
public static void main(String[ ] args) {
try{
reader = args[0];
catch(Exception g){
System.out.println(g);
}This class will not compile. The variable 'reader' is not declared anywhere.
You could create a shell program. When the user enters the name of the shell program at the command prompt, it gives them the prompt to enter the file to be input. And then from within the shell program you call the java program with the name of the file.

Make System.in read input from a command prompt

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