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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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 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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Adding Package Name To Source-code When Compiling / Running From Command Line?

Apr 29, 2015

I am operating java from the command line (using Terminal on Mac OSX 10.9.5).The current directory within Terminal is called "orange" and the following sourcecode file is in the orange directory :

Test1.java
package orange;
public class Test1 {
public static void main(String[] args) {
System.out.println("Test1 works");
}
}

This complies to Test1.class (visible in the orange directory) but when I try to run it in Terminal (simply using "java Test1" from within the orange directory). I get the following error message (which I don't get if I simply comment out the line //package orange;)

Exception in thread "main" java.lang.NoClassDefFoundError: Test1 (wrong name: orange/Test1)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)

[code]...

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Error While Running In Command Prompt Only - In Eclipse Running Fine

May 19, 2014

This is my program: RemoteXMLRead.java

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.apache.commons.io.filefilter.WildcardFileFilte r;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import java.io.File;

[code]....

It is working fine when i run in Eclipse, but is giving error when i run in cmd.. What i need to do to over come this..

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Running Java Programs From Command Prompt

Dec 17, 2011

My PC runs on Windows XP. When I try to run a java program (written using NetBeans) from the command prompt, the program opens in NotePad but does not run.This is what I have been typing at the command prompt:

C:javahellosrchelloHello.java

The above is the correct path to the Java file on my PC.how to run the program from the command prompt or perhaps link me to a tutorial that explains it?

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OpenJDK Java Command Running Instead Of Oracle Version

Dec 1, 2014

I've Installed oracle JDK version 1.8 on a debian machine that already has openjdk 1.6.i've set the path variable in etc/login.defs and java_home variable In etc/environment. When I echo $JAVA_HOME it points to the oracle version correctly and when I run javac It uses the oracle 1.8 version. The problem is when I run the java command , It runs the openjdk 1.6 version and I'm not sure why.If I type java -version It shows the openjdk version.

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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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Using Printf Command - Java Automatically Moving To Next Line

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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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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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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Read Property File From Command Line Argument In Java

May 8, 2015

I want to read property file in java from command line argument,i.e. if i have some parameters which i have to use separately , i comment the parameters which i don't have to use that time , then uncomment when i have to use.

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

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Using Java From DOS Command Line - Cannot Find Or Load Main Class

Nov 10, 2013

When I try to run Java from the Windows DOS command line, I'm running into trouble:
 
1. When I run Java from the wrong directory, I get the error Error: cannot find or load main class myapp1.
 
2. When I get to the "right" directory (.../MyApp1/build/classes/myapp1/, which is where the MyApp1.class file resides), I get the following error:
 
Exception in thread "main" java.lang.NoClassDefFoundError: MyApp1 (wrong name: myapp1/MyApp1)
 
1. The CLASSPATH variable is not set (when I type echo %CLASSPATH% the system returns %CLASSPATH%).

2. I also get the same error above when I use: > java -cp . myapp1

3. I've made sure the PATH is set correctly in environment variables, with the Java path at the beginning of the path string).

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How To Search Array Elements Present Or Not Using Command Line Argument In Java

Mar 15, 2014

how to search array elements present or not using command line argument in java

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Read In Java Source Code File As Command Line Argument

Oct 31, 2014

I am trying to complete this question. I understand the most of it but I haven't go a clue to read in the file name.

Full question: Implement a program that reads in a Java source code file and checks to see if it has balanced {}brackets. Your program should use a stack, implemented as a linked list, to check the brackets.

NOTE: you can use a reference called top which points to the head of the list. Your program should run as a command line program and should take a filename as an argument and print one of BALANCED or NOT BALANCED.

For example: c:> java checkBalanced "myProgram.java" BALANCED

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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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Running A Runnable Jar From Command Prompt

Dec 16, 2013

C:Users
swarnajar>java -cp C:PROJECTSDCDEDashboard(WorkingCopy)warWEB-INF
lib*.jar -Ddcde.bootstrap.location=C:PROJECTSDCDEDashboard(WorkingCopy)prop
erties -jar qaqc.jar

[Code]....

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Command Prompt Error While Running Applet

Oct 21, 2014

When I am trying to run an applet in command prompt I am getting an error message saying: System cannot find the file specified.

Initially I compiled my applet using javac BubbleSort1.java it works fine But when I tried running this using: appletviewer BubbleSort1.html I m getting the above error. Anyhow, both the html file n the java file are in same folder in C drive. (windows 7) .....

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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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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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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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Command Line Parameter Limit

Mar 22, 2014

What is limitation for command line parameter??

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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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Access Integer Value From Command Line Argument?

Apr 3, 2014

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

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Command Line Output Response To Textfile

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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