Command Line Program

Feb 8, 2014

I have a program that runs in the terminal (I use Ubuntu). It asks the user for a String, does something with it, and terminates.It works in the NetBeans terminal, but not outside of it. Specifically, regardless of what I input, it doesn't continue with the program. I enter something, press enter and it just goes to the next line in the terminal.

Java Code:

Scanner scan=new Scanner(System.in);
System.out.println("Enter the music directory:");
String path=scan.nextLine(); mh_sh_highlight_all('java');

how do I pass in arguments when I run the program (still in Linux)? Is there a way to check if the program was launched from the terminal or not?

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Cannot Run Java Program That Is Using External Library From Command Line

Mar 30, 2015

I am reading the excellent book Algorithms. The author of this book is using his own libraries.

I have downloaded the libraries (it is a file called stdlib.jar) and I've store it in a directory called ~/Downloads(I am using a macbook pro).

Then I have created a project with IntelliJ Idea 14.1 using the default package (as it is the only way for a program to 'see' these libraries).

The program is running inside the ide, but because of the nature of this book, all the included code must be run from the command line.

The problem is that I cannot run for example the Average class from the command line because the system asks for the external library.

Specifically the error is :

I enter : java -cp . Average

and the Error I get is :

Exception in thread "main" java.lang.NoClassDefFoundError: StdIn
at Average.main(Average.java:11)
Caused by: java.lang.ClassNotFoundException: StdIn
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)

[Code] ....

The Average class is the following :

public class Average {
public static void main(String[] args) {
//Average the numbers on StdIn
double sum = 0.0;
int cnt = 0;

[Code] .....

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Program To Accept String Float And Integer As Command Line Arguments

Feb 8, 2015

Write a java program to accept a string, float and an integer as command line arguments. String value should be displayed. Also the program should display the maximum value of two numbers. Use Integer.parseInt() and Float.parseFloat()

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How To Send Command To Command Line

Jun 19, 2014

I simply cannot understand and find how to send a command to Command Line from Java.OK I can Open DOS:

1. Process p=Runtime.getRuntime().exec("cmd /c start");

2. Now How to "cd C:" + Enter ?

3. send another command "mvn clean install" + Enter

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Command Line And Two Arguments

Sep 14, 2014

i have to run my program from the command line...My code is:

public static void main( String[] args )
{
 
// check command-line arguments
if ( args.length == 2 )
{
// get command-line arguments
String databaseUserName = args[ 0 ];
String databasePassword = args[ 1 ];
 
[code]....

Now everything works in Netbeans but running it from the command line, i get an error message ".java uses unchecked and unsafe operations".I have added a bit more code to the code above

for (int i = 0; i < args.length; i++) {
System.out.println("args[" + i + "]: "
+ args[i]);
}

Just not sure how to run it from the command line,

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BeatBox Using Command Line

Jun 27, 2014

I'm facing another problem with the HFJ code which i edited some what (as given HFJ) to make it work through command line..BeatBox using command line. Getting compiled but no sound coming..

package com.BB.getPlayer;
import javax.sound.midi.*;
public class MiniMusicAppCmd {
public static void main(String[] args) {
// TODO Auto-generated method stub

[code]....

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Error In Command Line Argument

Mar 8, 2014

class A
{
public static void main(String a[]){
System.out.println(a[0]);
}
}

This is my code.... i got error......

Exception in thread "main" java.lang.NoClassDefFoundError:a(wrong name: A)

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Java And Command Line Interaction

Aug 7, 2014

I am trying to interact with the command line prompt and script the responses for some config. When asked if user wishes to continue I would like respond yes or no, however I would like this response to be automated without any user interaction. I am able to launch the .exe file however when the command prompt is launched I cannot get any further responses to it.

p Java Code: ublic static void runConfigure(String[] refBox1,String outDir2)
throws IOException{
String s = null;
try {

[code]....

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Command Line Parameter Limit

Mar 22, 2014

What is limitation for command line parameter??

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Running Classes From Command Line

May 30, 2014

I'm suddenly having trouble running classes from the command line. Previously, things were working. I cant imagine I'm doing anything differently. The sample code is below:

Code:

class HelloWorldTester{
public static void main(String[] args){
System.out.println("Hello World");
}
}

Terminal output:

C:UsersmattmanDropboxProgrammingJava>javac helloWorldTest.java
C:UsersmattmanDropboxProgrammingJava>java HelloWorldTester.class
Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorldTester/clas
s
Caused by: java.lang.ClassNotFoundException: HelloWorldTester.class
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Could not find the main class: HelloWorldTester.class. Program will exit.

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Running Java At The Command Line?

Mar 27, 2014

I am just learning Java and I am have a problem running programs at the command line. I have the following code:

package java_help;
import java.io.IOException;
class help {

[Code].....

I can run this program in net beans were I originally wrote the program and it runs fine there. I also compile the program at the command line using javac but when I go to run this program I get a error message that it cant find main.

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Running Java From Command Line

Mar 10, 2014

i have windows 7. cmd.exe told me it couldn't recognize javac.i have a JDK installed though...

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Using Command Line Arguments As Parameter

Mar 1, 2015

What I'm supposed to do is use the time class and take the command line arguments and print them as the start and end times and then calculate the elapsed time between the two. My issue (hopefully my only as I have been working on this all day now) is that I cannot call the command line arguments using LocalTime. Below is what I have so far.

import java.time.Duration;
import java.time.LocalTime;

public class Clock {
private LocalTime startTime;
private LocalTime stopTime;
//default constructor-initialize startTime to current time
public Clock(){
this.startTime=LocalTime.now();

[Code] ......

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Apr 3, 2014

I want to access integer value from command Line argument without changing body of main method.?

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Aug 8, 2014

I am trying to make a method that takes in a cmd command (nslookup, systeminfo, etc), and outputs the response to a text file. I have tried a dozen different ways with no success. below is my most current failure. It succeeds when i run it, but nothing shows up in the text file.

public static void runSystemCommand(String command) {
command = "ping 192.168.1.3";
try{
Process proc = Runtime.getRuntime().exec(command);
InputStream in = new BufferedInputStream(proc.getInputStream());
OutputStream out = new BufferedOutputStream(new FileOutputStream("C:NetPanelDataping.txt"));

[Code] ....

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Reading TXT File As Command Line Argument?

Apr 23, 2015

I'm having trouble with how to read a text file into my program so the words can be sorted alphabetically. Should I use something like a FileReader?

An example of what I'm trying to do is a .txt file that holds the statement "java is a simple object oriented and distributed and interpreted and robust and secure and dynamic."

The output should organize the words like so: and and and and distributed dynamic interpreted is java object oriented robust secure simple

Here's what I have:

public static void main(String[] args) {
if (args.length != 1) {
System.out.println("Usage: java AscendingAlphabet"

[Code].....

I can never get it to read the file correctly, it just prints the "usage: java..." statement.

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Unable To Get GPA Of Student As Command Line Argument

Feb 15, 2015

I'm writing a Java program to get the gpa of a student as a command line argument. Then display the class of the degree according to some criteria. Here is my code. But it says "ArrayIndexOutOfBoundsException :0". How can I fix this?

public class Stgpa
{
public static void main(String[] args)
{
double gpa= Double.parseDouble(args[0]);
if(gpa>=3.6)
System.out.println("Class of the degree is: First Class Hons");
else if(3.6>gpa && gpa>=3.4)

[Code]...

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Jan 8, 2014

launch Java Console window when we enable show console option enabled in Control Panel?

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Aug 4, 2014

I'm learning about the printf command, and when I have it, it is not letting me ad an input. Here is my quick little program:

import java.util.Scanner;
public class TestingPrintF {
public static void main(String[] args) {
// Create a Scanner
Scanner input = new Scanner(System.in);

[Code] ....

The first section works good, but when i move down to the second part it just automatically finishes without letting me enter a phrase.

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Apr 4, 2015

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Feb 3, 2014

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Is it possible to pass 'Hello World.docx' as a whole word?

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Cannot Execute Java Code From Command Line In Notepad++

Jan 2, 2015

I have the program written correctly, but it won't execute.

public class Welcome {
public static void main(String[] args){
//Display message Welcome to Java! on the console
System.out.println("Welcome to Java");
}
}

I compiled the code as written below with "javac Welcome", and use the "Class" name "Welcome"

The file path is: C:Java Programs

Javac Welcome.java
Java Welcome

Below is the result of the above commands

javac Welcome

Create Process() failed with error code 2:

The system cannot find the file specified.

java Welcome

Process started >>>

Error: Could not find or load main class Welcome

<<< Process finished. (Exit code 1)

I am coding in notepad++

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Jun 17, 2014

The goal of this software is to provide a web interface which must be able to manage the Quagga routing daemon. For those who don't know Quagga, the only interface it provides the user is its built-in cli. My project must convert web events to commands and vice-versa. how I'm going to maintain quagga's configuration state synchronized with JSF's managed beans. The example below shows the commands one must run on quagga's cli in order to add a BGP neighbor:

neighbor 10.0.0.1 remote-as 65535
neighbor 10.0.0.1 description "Just a Test"
neighbor 10.0.0.1 next-hop-self
neighbor 10.0.0.1 soft-reconfiguration inbound
write memory

In order to represent this piece of information in my project, I was thinking about mapping this to a class:

public class BGPNeighbor {
private String ip_address;
private Integer asn;
private Boolean next_hop_self;
private Boolean inbound_soft_reconfiguration;
}

With this I would parse the information from Quagga's configuration and map this to classes in my software. I think it's a lot easier to do with database-based software, the problem with this project is that it's not completely database oriented. The information must be fetched from the network, parsed, converted to classes and then they would be available to JSF as managed beans. Any alteration to this classes must be converted to quagga cli commands which must be executed through the network again (telnet).

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Is there and way to read the required parameters through command line arguments in java.

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