Compiling Javac Is Not Recognized As Internal Or External Command
Oct 12, 2014compiling javac is nt recognized as internal or external command
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Javac Is Not Recognized As Internal Or External Command Error
Aug 25, 2014I've installed the Java JDK onto my Windows 8 laptop and the first thing I need to do is run the compiler from the Command Prompt. The first prompt I enter is C:java -version. This worked fine, however when I try to enter the next prompt C:javac -version, I am getting the following screen and messages:
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:UsersMary>java -version
java version "1.8.0_20"
Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)
C:UsersMary>javac -version
'javac' is not recognized as an internal or external command,
operable program or batch file.
I have entered the path into the environment variables area within my control panel. Not too sure why the first prompt works, but the second doesn't...
Compiling Servlet From Command Prompt
Dec 11, 2014I am using Oreilly Head First Servlet book and having trouble in compiling servlets from cmd.
Tomcat path is : C:Program FilesApache Software FoundationTomcat 6.0
Below is compiling result
C:ProjectseerV1>javac -classpath "%TOMCAT_HOME%libservlet-api.jar:"classes:
. -d classes src/com/example/web/BeerSelect.java
srccomexamplewebBeerSelect.java:3: error: package com.example.model does not
exist
import com.example.model.*;
^
srccomexamplewebBeerSelect.java:4: error: package javax.servlet does not exi
st
import javax.servlet.*;
[Code] ....
14 errors
C:ProjectseerV1>
Cannot Run Java Program That Is Using External Library From Command Line
Mar 30, 2015I 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$1.run(URLClassLoader.java:372)
[Code] ....
The Average class is the following :
public class Average {
public static void main(String[] args) {
//Average the numbers on StdIn
double sum = 0.0;
int cnt = 0;
[Code] .....
Adding Package Name To Source-code When Compiling / Running From Command Line?
Apr 29, 2015I am operating java from the command line (using Terminal on Mac OSX 10.9.5).The current directory within Terminal is called "orange" and the following sourcecode file is in the orange directory :
Test1.java
package orange;
public class Test1 {
public static void main(String[] args) {
System.out.println("Test1 works");
}
}
This complies to Test1.class (visible in the orange directory) but when I try to run it in Terminal (simply using "java Test1" from within the orange directory). I get the following error message (which I don't get if I simply comment out the line //package orange;)
Exception in thread "main" java.lang.NoClassDefFoundError: Test1 (wrong name: orange/Test1)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
[code]...
Why Command Prompt Does Not Recognize Java As A Command
Jul 22, 2014I am trying to execute a program from the command prompt. I type java -jar zuul.jar (zuul is the name of my project) and I get a message that java is not recognized as an internal or external command. What do I do wrong?
View Replies View RelatedCan't Run Javac On Linux?
Mar 17, 2015Java Code: esolve@mypad:~/temp$ java -version
java version "1.7.0_75"
OpenJDK Runtime Environment (IcedTea 2.5.4) (7u75-2.5.4-1~trusty1)
OpenJDK 64-Bit Server VM (build 24.75-b04, mixed mode)
esolve@mypad:~/temp$ javac HelloWorld.java
program 'javac' is in the following packages：
* default-jdk
* ecj
* gcj-4.8-jdk
* openjdk-7-jdk
* gcj-4.6-jdk
* openjdk-6-jdk
please try：sudo apt-get install <package> mh_sh_highlight_all('java');
I see there is jdk in my ubuntu system but when I run javac, it asks me to install a jdk.
Javac Cannot Find Symbol
Mar 18, 2014The following two files are in the same directory.Eclipse is the IDE.fix the javac cannot find symbol buildUserInfos error.
package my.proj;
import my.proj.UserInfo;
public class ConvertUser {
//...
public static UserInfo[] buildUserInfos(WebUserInfo[] webUserInfos){
[code]...
Javac Not Finding Source Files
Apr 3, 2015In using javac, I have installed the JDK, set the PATH and JAVA_HOME. When I run this:
"C:Program FilesJavajdk1.8.0_40injavac" -cp C:Gj_javacHTMLCarbonResults.java
I get: javac: no source files
Since I placed the source file path in the command line, I don't understand why it can't find the one .java file.
Using Javac - Sourcepath To Compile Superclasses
Sep 20, 2014error: cannot find symbol Place
I'm trying to use the javac -sourcepath option to compile superclasses without explicitly naming them. I've been looking at examples, other posts, and trying variations for a while without success.
I have:
package ActorBase0.classes;
public class Bridge extends Place {
......
Place is also in package ActorBase0.classes and the source files are in the same directory .... ActorBase0sources
javac -d ActorBase0classes -sourcepath ActorBase0sources -cp . -Xlint:unchecked -verbose ActorBase0sourcesBridge.java
is one of the variations that gets error: cannot find symbol Place.
Window Should Pop Up Giving Properties Of Javac
Feb 20, 2014I have just tried to learn java this week [COLOR="#000000"]and I am being held back by this once installed java jdk I nav to the java file and the bin file and then the javac file to find that the below tab does not exist
A new window should pop up giving the properties of the javac, there should be an attribute called Location..I can see the location option in my documents but in no other folder
Javac - Invalid Flag Error
Aug 27, 2014So today i was trying to compile a simple script that used to work before on Sublime Text 2, an i got the following error;
javac: invalid flag:
Usage: javac <options> <source files>
use -help for a list of possible options
I already know the script works because i didn't change anything since the last time it work, but anyways just in case i tried running a HelloWorld program just to check it out and i got the same error. The i stop trying to compiling the HelloWorld on Sublime so I went to Terminal and i got the same exact error.
When Does Internal Cast Actually Happen
Nov 3, 2014When does an internal cast actually happen? I am aware that compound assignment operator do an internal cast. Does it happen in Assignment 1?Assignment 2?Assignment 3?Assignment 4?
Java Code:
public class Parser{
public static void main( String[] args){
byte b=1;
short s=1;
int i=1;
s=b;//Assignment 1
s<<=b;//Assignment 2
b<<=s;//Assignment 3
s +=i;//Assignment 4
}
} mh_sh_highlight_all('java');
Possible To Dispose Internal Frame
Nov 20, 2014Is it possible to dispose(); an internal frame and keep my main JFrame open.
View Replies View RelatedFunctions Are Not Recognized
Oct 29, 2014// set up the generator
CMSSignedDataGenerator gen = new CMSSignedDataGenerator();
gen.addSigner(key, cert, CMSSignedDataGenerator.DIGEST_SHA224);
gen.addCertificatesAndCRLs(certsAndCRLs);
addsigner and addCertificatesAndCRLs are not found in netbeans.
Which version of Bouncy Castle and JDK version this supports?
How To Send Command To Command Line
Jun 19, 2014I 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
An Error Occurred While Shelling Out To Javac - Matlab
Jan 26, 2015I am trying to extract a jar file from Matlab code using javac from Library Compiler (java package).
I have set JAVA_HOME to:
Java Code:
C:Program FilesJavajdk1.7.0_11 mh_sh_highlight_all('java');
and added to PATH:
Java Code:
C:Program FilesJavajdk1.7.0_11bin. mh_sh_highlight_all('java');
When I enter java -version in my console, I get java version jdk1.7.0_11 and running javac -version shows jdk1.7.0_11.
However, it seems that matlab could not find javac, thus, I am not able to compile my .m code into a .jar file. When I tried to compile .m code I got the following:
Java Code:
Error: An error occurred while shelling out to javac (error code = -1).
Unable to build executable.
Executing command: ""C:Program FilesJavajdk1.7.0_11binjavac" mh_sh_highlight_all('java');
This is the directory of my java bin folder and javac.exe exists : CProgram FilesJavajdk1.7.0_11binjavac.exe? What should I check in order to correctly link Matlab to Java?
Calling Internal Frame In Java
Jul 14, 2014Any way I can call an internal Frame in java by clicking a button in separate internal Frame to display in a panel in Main JFrame....
View Replies View RelatedJava Class For Internal Order
Jan 8, 2015I am just learning java now i have a problem where i have to run a test order on my internalOrder class from the orderTester class and i,m not sure how to do this ?
This is the code i have for my order class:
public static void testCase8(){
orders ords = new orders ("Pen", 8, -0.5);
System.out.println("Test Case 8:" + "
" + ords.getOrderDetails());
[Code] ....
This is the code for my Internal class
public final static double DISCOUNT = 0.4;
public InternalOrder(String productName,int quantity ){
super(productName, quantity,DISCOUNT);
}
public void printInternalReport(){
System.out.println("Printing internal report ...");
}
Now my orderTest class is passed though orders class if you need that code i will put it up...
Package Not Recognized On Import
Oct 16, 2014This code doesn't recognise the package ( and therefore class ) timetest3, when I try to import it. The package I try to reference/call, follows, and works fine.
import javax.swing.JOptionPane;
import timetest3.TimeTest3;
public class timetest4 {
public static void main(String args[]) {
TimeTest3 time = new TimeTest3();
time.setTime(13,45,52);
[Code] ......
Calendar Method Not Recognized
Mar 21, 2014I am currently using notepad to create a Java program and using the command box to compile it and execute it and it has been working fine. I have the JDK version 7 so java.lang works which I know does not need to be imported. The Calendar method which should be recognized is not.
Here is the program. Cut this program and compile it in the command box. It will not recognize the Calendar method.
import java.util.*;
class Practice4_2
{
public static void main (String args[])
{
Calendar cal = Calender.getInstance();
Date.now = new Date();
[Code] ....
Here is my path if needed:
C:Program Files (x86)InteliCLS Client;
C:Program FilesInteliCLS Client;%SystemRoot%system32;
%SystemRoot%;%System Root%System32Wbem;%SYSTEMROOT%System32WindowsPowerShellv1.0;
[Code] ....
Do While Loop / Symbol Not Recognized
Mar 26, 2014The compiler tells me that the variable after the while is not recognized.
What I especially don't understand is that the variable is defined and accepted in the character input and the swicth but later on is not recognized. I'm sure of this because I wrote the entire program, and then compiled it afterwards. I was therefore able to see the compiler advancing as the code was corrected
The error message is "cannot find symbol - variable choix"
do {
System.out.println ("1); Acheter Patons ");
System.out.println (" 2); Fabriquer baguettes ");
System.out.println (" 3); Vendre baguette ");
System.out.println (" q ou Q); Quitter ");
char choix = Clavier.lireChar();
switch (choix) {
[Code] ....
Possible To Let Javac Create Subdirectory According To File Package Statement
Mar 5, 2014Out of eg. MyApp.java in the directory est I can create the MyApp.class by way of this order:
Java Code: javac C: estMyApp.java mh_sh_highlight_all('java');
It should be possible to let the javac create a subdirectory according to the file's package statement. So I have tried:
Java Code:
javac -d C: estMyApp.java mh_sh_highlight_all('java');
That always gives me the message that javac could not create the directory.
OrderTester - Java Class For Internal Order
Jan 8, 2015I have a problem where i have to run a test order on my internalOrder class from the orderTester class and I am not sure how to do this. This is the code i have for my orderTester class:
public static void testCase8(){
orders ords = new orders ("Pen", 8, -0.5);
System.out.println("Test Case 8:" + "
" + ords.getOrderDetails());
[Code] ....
this is the code for my Internal class
public InternalOrder(String productName,int quantity ){
super(productName, quantity,DISCOUNT); }
public void printInternalReport(){
System.out.println("Printing internal report ...");
}
Now my orderTest class is passed though orders class and intrenalOrder class if you need that code i will put it up.
JLabel On Internal Frame Unknown Error
Nov 24, 2014My program compiles and runs ok how ever when i open my Jinternal frame and click on one of the JLabels i get a error on the Cmd ther error reads as follows
************************ ERROR **************************
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at JLabelAssignment.mouseClicked(JLabelAssignment.jav a:429)
at java.awt.Component.processMouseEvent(Component.jav a:6508)
at javax.swing.JComponent.processMouseEvent(JComponen t.java:3320)
[code]...
Attempting To Make CoalescedHashMap With Internal Chaining
Apr 3, 2014I am attempting to make a CoalescedHashMap<K, V> with internal chaining. It isn't a hard concept, but it needs to extend AbstractSet and implement Map<K, V>.
Map requires a remove method that returns a V(value). AbstractSet extends Collection, which requires a remove method that returns a boolean value. It gives a syntax error either way it is done. This is a standard homework assignment for a junior level class, so there must be some way to deal with this. It is annoying as we do not need to implement the remove method, it just throws and exception.