Javac - Invalid Flag Error
Aug 27, 2014
So 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.
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Jan 26, 2015
I 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?
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Aug 25, 2014
I'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...
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Apr 26, 2014
While doing trial and error got caught in the below scenario.
public class Crypt {
public static void main (String args[])
{
/*all I want is calculate a binary number (ex -: 22 , 34) using decimal base (10n).
*So, I have to convert 2 p into 10n form so I have to find n in terms of p . We have x as the input.
* The formula works as below.
*2p =10n
*p ln (2) =n ln (10)
*n = p [ln(2) / ln(10)]
*2 p = 10 p [ln(2) / ln(10)]
[Code] ....
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Jul 11, 2014
I am having a problem with the JavaFX MediaPlayer playing videos with resolutions greater than 1920x1080px. For testing purpose I downloaded the example from [URL] ... and added the following error-handling:
mediaPlayer.setOnError(new Runnable) {
@Override
public void run() {
System.out.println(mediaPlayer.getError.getMessage());
System.out.println(mediaPlayer.getError.getType());
}
});
When playing a video with a resolution of 1920x1168px, the window became black and I get this console output:
[com.sun.media.jfxmediaimpl.platform.gstreamer.GSTMediaPlayer@5482fb8f] ERROR_MEDIA_INVALID: ERROR_MEDIA_INVALIDUNKNOWN
The video is encoded with h264 and aac (for audio) and is having a resolution of 1920x1168px. The error occurs with each video with a resolution greater than 1920x1080px. Vidoes with a resolution of 1920x1080px or smalle are working fine. The playback of all videos is working with VLC-Player. I tried Java 7_51 and Java 8_5.
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Sep 1, 2014
I have uninstalled JAVA because I needed to download the 64-bit version but no matter WHAT I do I still get the same installation error message "keyset as registered in invalid" and I was downloading it from [URL] .... I will do whatever it takes to fix this!
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Sep 25, 2014
I am currently working on modules of a java program but am having issues with this module . it gives this error code"syntax error on token '?', invalid primitive type".
This is my code:
import java.awt.*;
import java.awt.event.*;
import java.io.PrintStream;
import java.rmi.Naming;
import java.util.StringTokenizer;
[Code] .....
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Apr 5, 2015
Getting the following error at line 13.
Multiple markers at this line - void is an invalid type for the variable loadDictionaryFromFile - Syntax error on token ")", ; expected - Syntax error on token "(", ; expected
Line 13 starts public void load....
Code:
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class PirateTranslator
{
public static void main(String[] args)
[Code] .....
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Jun 25, 2014
I am new to Java and trying to learn it.I wrote the following program but while creating the method nav i am getting errors.
Error:- void is an invalid type for the variable nav
import org.openqa.selenium.*;
import org.openqa.selenium.firefox.FirefoxDriver;
import java.util.*;
public class YahooHomepage {
private static WebDriver driver;
[Code] .....
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Jul 10, 2014
I am trying to encrypt a message using RSA algo but getting the following error:
java.io.StreamCorruptedException: invalid stream header
at java.io.ObjectInputStream.readStreamHeader(ObjectI nputStream.java:753)
at java.io.ObjectInputStream.<init>(ObjectInputStream .java:268)
Java Code :
public static final String PUBLIC_KEY_FILE = "C:/TXT.key";
final String originalText = "Text to be encrypted ";
ObjectInputStream inputStream = null;
FileInputStream f= new FileInputStream(PUBLIC_KEY_FILE);
// getting error on the below line
inputStream = new ObjectInputStream(f);
final PublicKey publicKey = (PublicKey) inputStream.readObject();
final byte[] cipherText = encrypt(originalText, publicKey);
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Jun 6, 2014
regionsBuilder.setMultiChoiceItems(
displayNames, regionsEnabled,
new DialogInterface.OnMultiChoiceClickListener()
{
@Override
[code]...
Questions:
1. Describe what the code displays. A error message would be shown when the use has selected an insufficient number of options.
2. Describe when an event handler (included in the code) gets executed? The event handler gets executed every time a user selects an option(???)
3. Explain a feature of what is displayed
4. Explain the meaning of all of the parameters in the central, complicated call of the code.
5. Describe how the code handles two possible situations.When the user has selected a sufficient number of options (no less than or equal to 0), then no error message would be shown. On the other hand, an error message will be shown when the user has not selected a sufficient number of options (0). (???)
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Mar 4, 2015
rJ38Sk0.jpg8xPkese.jpg
So I'm supposed to draw this flag using java grids, here is what i currently have.
int height = grid.getHt();
int width = grid.getWd();
//Paint everything Blue
for(int c=0;c<height;c++){
for(int d=0;d<width;d++){
grid.setColor(c,d,Color.CYAN);
[Code] ....
at size 9 it looks fine, but at size 12 it is missing a black dot. How can I solve this?
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May 20, 2014
Reading a sequential flat file (which is working) but now I need to add code to update the status flag (setting it to ‘Y’ position(7,1)) before I close the file and not sure how without defining the fields.
try
{
tFile = getTFileName();
System.out.println("File Name: " +tFile);
ukarf = new ZFile(tFile, options);
while(!EOF) {
int bytesRead = ukarf.read(buffer);
System.out.println("Record read: " +new String(buffer,0,9,"IBM-1047"));
if(bytesRead == -1)
[code]....
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Apr 9, 2014
I'm trying to make it to where each button is supposed to display the country's flag and a description. As of right now, I've hit a roadblock and haven't been able to get past it. As of right now, without the errors in the setDisplay method where setTitle and the other two are undefined for that type, I get each country's name listed as a radio button.
However, I haven't been able to get anything else to display.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Flags extends JFrame{
private String[] flagTitles= {"Canada", "China", "Denmark", "France", "Germany", "India", "Norway", "United Kingdom", "United States of America"};
private ImageIcon[] flagImage= {
[Code] .....
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Mar 17, 2015
Java 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.
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Mar 18, 2014
The 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]...
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Apr 3, 2015
In 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.
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Sep 20, 2014
error: 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.
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Feb 20, 2014
I 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
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Oct 12, 2014
compiling javac is nt recognized as internal or external command
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Mar 5, 2014
Out 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.
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May 6, 2014
My project in eclipse..I get the error below when I run MyTagUser.jsp -
HTTP Status 500 - /jsp/MyTagUser.jsp(14,0) Attribute subTitle invalid for tag Header according to TLD
org.apache.jasper.JasperException: /jsp/MyTagUser.jsp(14,0) Attribute subTitle
invalid for tag Header according to TLD
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)...et
[code]...
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May 1, 2015
I need to reject invalid input and what is best possible way to do so with the given codes:
Class:
import java.awt.Color;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
[Code] .....
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May 12, 2014
I was trying to set scripting-invalid true , but even after setting it to true I am able to use scripting. This is the web.xml under WEB-INF
<web-app>
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<scripting-invalid>
true
</scripting-invalid>
</jsp-property-group>
</jsp-config>
</web-app>
And This is the jsp page
<html>
<body>
<!-- Here I am going to use scripting like scriptlet,expression and other element like jsp declaration element -->
<%!int i=0;%>
<%System.out.println("Scriptlet");%>
<%=new String("Expression")%>
</body>
</html>
Why its not working ?
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Feb 26, 2015
import java.util.HashSet;
import java.util.ArrayList;
public class Graph
{
double [] [] adj;
graph (double [] [] a)
{
adj= new double [a.length][a.length];
for (int i=0;i<a.length;i++)
for (int j=0;j<a.length;j++)
adj[i][j]=a[i][j];
}
C:UserscDesktopGraph.java:: error: invalid method declaration; return type required
graph (double [] [] a)
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Apr 8, 2014
Well I fixed my invalid path problem
Now it is telling me that my file is not found and it is exactly where I put it and told JCreator to look for it.
this is what I get:
javac: file not found: C:Program FilesJavajdk1.8.0docsMyName.java
when I go manually to the address, it is there but for some reason Jcreator cannot find it.
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