Errors When Compiling

Nov 19, 2014

why my program doesn't work. Here's the code :

public test5 {
public boolean test(int grille[][]){
for (int i = 0 || i < grille.length || i++){
int max = grille[i][0];
for (int e = 1 || e < grille[i].length || j++){
if (grille[i][e]== max && max !=0){
solution = false;
System.exit(1);

[code]....

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Errors Compiling BeerSong

Feb 9, 2014

I get quite a few errors while trying to compile the BeerSong from the Head First Java book. I copied the text from another person that did the beer song on this forum and it worked as expected. What I can't figure out is why mine is not working when it looks like the text is exactly the same between the two versions. His works, but mine doesn't.

Here is the text and errors that I get:

public class BeerSong
{
public static void main (String[] args)
{
int beerNum = 99;
String word = "bottles";

[code]...

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Errors On Compiling But Not Showing In Eclipse?

May 6, 2015

I am watching BrandonioProductions on youtube. His videos are pretty good, but he doesn't seem to get errors where I get them. Here is an example.

public class compareUnequal {
public static void main(String[] args){
compareTwo();
}
public static void compareTwo(){
String x = "david";
String y = "Notdavid";
if (!x.equals(y)){
System.out.println("Not equal");
}
}
}

It runs ok, but asked me to proceed when there is an error, but I can`t figure out where the error is!

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Interface Class And Object Class Is Compiling Symbol Errors

Nov 16, 2014

I am a beginner here at JAVA and I am trying to program a Gratuity Calculator using both interface class and object class but it keeps on compiling with errors saying "cannot find symbol".I tried everything to fix it but it just keeps on stating symbol.

[CODE]
public class GratuityCalculator extends JFrame
{
/* declarations */
 
// color objects
Color black = new Color(0, 0, 0);
Color white = new Color(255, 255, 255);
Color light_gray = new Color(192, 192, 192);
 
[code]....

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Compiling Java Application

Feb 27, 2015

So say I write up a program like a dice roll game, which I see on the forums here. It's all written and good to go and when I hit Run it does what I want it to do, no errors..What do I do with those .class and .java files? Do I compile it somehow into an app I can put on the google play store? What is the NEXT STEP after the program is all written?

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Third Overloaded Method Not Compiling

Feb 16, 2012

Create a class named Commission that includes three variables: a double sales figure, a double commission rate, and an int commission rate. Create two overloaded methods named computeCommission (). The first method takes two double parameters representing sales and rate, multiplies them, and then displays the results. The second method takes two parameters: a double sales figure and an integer commission rate. This method must divide the commission rate figure by 100.0 before multiplying by the sales figure and displaying the commission. Supply appropriate values for the variables, and write a main () method that tests each overloaded method. Save the file as Commission.java

b. Add a third overloaded method to the Commission application you created in Exercise 1a. The third overloaded method takes a single parameter representing sales. When this method is called, the commission rate is assumed to be 7.5% and the results are displayed. To test this method, add an appropriate call in the Commission program's main () method. Save the application as Commission2.java

COMMISSION.JAVA

public class Commission
{
public static void main(String[] args)
{
double Sales = 10000;
double commRate = 0.075;
int rate = 7;
computeCommission(Sales, commRate);
computeCommission(Sales, rate);
}
public static void computeCommission(double Sales, double commRate)

[code]....

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Getting Error - Cannot Find Symbol When Compiling

Jan 8, 2014

See code.

import java.util.*;
public class CQ1v1{
public static void main(String args []) {
Scanner in = new Scanner (System.in) ;
String name = "";
System.out.println("Welcome to the Interrogator") ;

[Code] ....

When I compile getting

CQ1v1.java:12: error: cannot find symbol
x = in.nextLine ();
^
symbol: variable x
location: class CQ1v1
CQ1v1.java:21: error: cannot find symbol

[Code] ...

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Compiling Servlet From Command Prompt

Dec 11, 2014

I 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>

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Constructor Arguments Error When Compiling

Oct 18, 2014

I am trying to create an array where each object includes a service description, price, and time in minutes. I have a Service class and a SalonReport class:

import java.util.*;
public class Service
{
public String serviceDescription;
public double servicePrice;
public int timeMinutes;

[Code] ....

When I compile this, I get an error message that says:

SalonReport.java:8: error: constructor Service in class Service cannot be applied to given types;
salonServices[0] = new Service("Cut", 8.00, 15);
^
required: no arguments
found: String,double,int
reason: actual and formal argument lists differ in length

What this error message means and how I can correct it? I am confused because my SalonService() method has (String service, double price, int minutes), and each object is listed in that exact order.

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Access Is Denied While Compiling The Java File

Oct 30, 2014

I am getting an error as follows while trying to compile a java file for servlet:-

"error while writing BeerSelect: WEB-INFclassesBeerSelect.class (Access is denied)
public class BeerSelect extends HttpServlet
^
1 error"

I am using "C:Program FilesApache Software FoundationTomcat 8.0webappsBeerBottlejavac -d WEB-INFclasses BeerSelect.java" to compile the file.

I am using Windows 8.1

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Unchecked Or Unsafe Operations While Compiling Program?

Jun 30, 2014

String filename="C:UsersRajashekarDesktopfwfwdSoftware Failures1_Test.txt";//Input Files
String data;
public ArrayList<String> value=new ArrayList<String>();
public void read() throws IOException{
File f = new File(filename);

[Code] ....

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Error When Compiling Rock Paper Scissors

Nov 7, 2014

When I try to compile the code it says " method determineWinner in class RPS cannot be applied to given types;" I think there is something wrong with the way i called the determineWinner method but i'm not what exactly is wrong.

public class RPS
{
public static void main( String [] args )
{
String result;
String userName = getUserName();
String playerChoice, computerChoice;

[code]....

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Illegal Start Of Expression Error Upon Compiling

Jun 11, 2014

I keep getting this error upon compiling and can't see the problem with it.

The error is on line "45: 15"

/* 37: */ public static EntityDef forID(int i)
/* 38: */ {
/* 39: 10 */ for (int j = 0; j < 20; j++) {
/* 40: 11 */ if (cache[j].type == i) {
/* 41: 12 */ return cache[j];

[Code] .....

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Compiling And Running Program With No Main Class / How Is That Possible

Mar 22, 2014

I made a software using Netbeans and javaswing. Accidently i deleted my main file which contains my main class and main method. Just to test, i tried to compile and run and it worked but the style of my buttons and windows has changed. So, what happened? How can i change the style of my programs?

//File Accidently deleted
package time;
public class Time {
public static void main( String[] args ) {
Window wdow = new Window();
wdow.setVisible( true );
}
}

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Error In Compiling Cryptic Java Code

May 21, 2015

I am getting a compile error message when I am trying to compile someone else code using Eclipse.  The partial code description is below as follows:
 
public String decrypt(String password) {
    try {
      // create the key and parameter spec
      KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, interactions);
      SecretKey key = SecretKeyFactory.getInstance(keyFormat).generateSecret(keySpec);
      AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, interactions);

[Code] ....

Below is the following error message:

Access restriction: The type 'BASE64Decoder" is not API (restriction on required library '/usr/lib64/jvm/java-1.8.0-openjdk-1.8.0/jre/lib/rd.jar')

How do I troubleshoot it?

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Compiling Multiple Java File Using Terminal In Ubuntu 12.04

Feb 11, 2015

I am new in java. I executed a java program using eclipse. the program contain two java file. when i try to run it using terminal in Ubuntu. Two files are not linking. it shows error. i am attaching all the data.

It shows the following error

regex2string.java:83: error: cannot find symbol
str = randomstr.nextString(2000);
^
symbol: variable randomstr
location: class regex2string
1 error

[Code] ...

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Compiling Javac Is Not Recognized As Internal Or External Command

Oct 12, 2014

compiling javac is nt recognized as internal or external command

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Run Time Error As Null Pointer Exception While Compiling

Apr 12, 2015

I have an input text file as file.txt where, it consists of only real values separated with commas, and arranged as rows as columns as mentioned below :

1,2,3,4,5,6,10,5,8,9
1,4,7,8,9,0,6,4,3,2,1
2,4,5,8.1.3.4.6.7.9.0

the number of rows is 100 and the number of columns are 9, that is they are fixed.Above is just an example, the file consists of decimal values.What I require is for each column of values I need to find out it's average or mean, that is in above example,

for 1st column:(1+1+2)/3
for 2nd column(2+4+4)/3
for 3rd column(3+7+5)/3,,,,,,,like this till the last column.

So I need to take the input from the .txt file, calculate the column average of each column and the average of each column must be displayed as output. I have done a bit of coding, but it is giving a run-time error as NullPointerException.I will forward my code as attachment, the reading of file, is done as string in java and then it must be converted to double values, also to read the comma separated input from a file I have used the split().

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Illegal Start Of Expression Error When Compiling Program

Apr 11, 2013

class Test1
     {
     public static void main(String args[])
          {
          void show()
               {
               System.out.print("its working");
               }
          show();
          }
     }

When I compile this program i find the error illegal start of expression

^void show
Test1.java5 ';' is expected

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Servlets :: No Error Shown While Compiling Java File But Also No Output

Jan 22, 2015

I made a web app to test the ServletContextListener in tomcat according to the book head first servlets and jsps and used the code

out.println("test context attributes set by listener<br>");
Dog dog = (Dog) getServletContext().getAttribute("dog");
out.println("Dog's breed is: "+dog.getBreed());

in the listener class.But the output is showing the first line only and the second println() is not showing any output whereas my Dog class compiled successfully and I didn't see any NullPointerException as expected in the book but somehow it seems like the problem is in the 2nd line of code only but I don't know what.

I also tried to add a 4th line at the end with println() only but with a simple text even that is not running but when I put that same line after the 1st line, the output is shown.I am unable to see what has gone wrong in the 2nd line of code.

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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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Conversion From Int To Byte Errors

Jun 11, 2014

It's probably really obvious, like it usually is, but I can't figure out why I am getting these errors on multiple functions.

if (!client.lowMem) {
for (int l = this.onDemandFetcher.getVersionCount(2), i2 = 1; i2 < l; ++i2) {
if (this.onDemandFetcher.method569(i2)) {
this.onDemandFetcher.method563(1, 2, i2); //Error

[Code] ....

The error I get on this line of code is 'Custom may not have been initialized', but no matter what I do, the error sticks.

Custom.cacheIndex = (Custom.cacheIndex + 1) % 10;
final Custom Custom = Custom.cache[Custom.cacheIndex];
//^^^^^

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How To Compile A File That Contains Errors

Mar 19, 2014

I am making a simple mod/hack for a game programmed in Java. I located the .class file I needed and deobfuscated it and then decompiled it. After that I went in and made a very simple adjustment that I wanted to make. Unfortunately I can across a problem when trying to compile the file! The file won't compile because there are errors. The reason there are errors is because this is just one file out of an entire game. I know this my seem weird, but is there some way I can compile the file with the errors.

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Cannot Find Symbol Errors

Feb 3, 2015

I have the following code snipet and I get the following errors

interface expected here
[javac] private class fileFilter implements FileNameExtensionFilter{
[javac] ^
cannot find symbol
[javac] symbol : method fileFilter(java.lang.Object)
[javac] location: class gui.components.StartupDialog

[code]...

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Keep Getting Errors - Cannot Find Symbol

Nov 30, 2014

import javax.swing.*;
public class opt
{
public int code[];
public static void main(String[] args)
{
int xxx = 1;

[Code] ....

Where did I did wrong cus I keep getting these errors: What do I need to do to fix the errors?

F:>javac opt.java
opt.java:25: error: cannot find symbol
cd.checkDeclare<zz>;
^
symbol: method checkDeclare<String>
location: variable cd of type code[]
java:32: error: cannot find symbol

[Code] ....

4 errors

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Swing/AWT/SWT :: Keywords Are All Getting Errors

Mar 17, 2014

I must be missing a bracket or an import somewhere in this small bit of code. What is wrong and why all my swing KeyWords are all getting errors.

import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
public class list1 extend JFrame
{
private JPanel deckPanel;
private JPanel selectedDeckPanel;
private JPanel deckList;

[Code] .....

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