I'm new to java programming and I've been trying to make my first program in eclipse for a while, and I finally managed to do that. Well my problem is that I want to be able to use my program without having to open eclipse and opening my program from there, is there any way to do that ?
View RepliesI have recently revisited a program I wrote a few years ago, that runs absolutely fine in the console in Eclipse. However, when I export it as a Runnable Jar File, then open the file on my Desktop, nothing happens.How do I get the program to export so that when I open the file, a window opens that acts as the console (so the program can run in it)?
View Replies View Relatedi have programmed a game using JPanel and JFrame. My App is of this type (if this is relevant to the problem):
public class Main extends JPanel {
private JFrame frame;
public static void main(String[] args) {
new Main();
} public Main() {
frame.setSize(WIDTH, HEIGHT);
[Code] ....
The problem is, When i export the file in eclipse as Runnable jar file,and run the exported file, it gives me a blank screen (white default) and nothing is running. Whereas, normal debugging of the game is working quite well.
I tried to run the program in eclipse(See Attachments 2 3 4) but I got the following errors(Attach 1), I have attached them as screen shots.
1.Errors
2. Mapper code
3. Reducer code
4. Driver
Since am new to java and hadoop, I want to know the procedure step by step in a brief manner.run this program and rest of the two statements successfully.
im wanting to create a console gui that opens with my program game and people can type stuff in it to run commands as well as a debug option to show when errors happen and have a command to list all availble command.
View Replies View RelatedIt has no errors in it, but when it runs, it just doesn't show any output at all. Here's my code.
Fuel Class:
public class FuelGauge {
// Setting the gallons and the total amount of gallons
private int gallons;
final static int TotalGallons=15;
public FuelGauge(){
gallons=0;
}
// Initiate the number of gallons
public FuelGauge(int gallons){
[Code] .....
I've been provided a code skeleton for what must be done, but despite my best efforts to make things work, I'm coming up dry (obviously, due to a lack of knowledge.) One thing that might work is if I knew how to debug this type of application, line-by-line, to see exactly what is going on. Obviously, it's easy enough to debug the client part, but moving over to the server part, I haven't been able to figure that out (I'm using Eclipse.)
Anyways, here's the code I've got so far:
Client.java:
import java.io.*;
import java.net.*;
[code]....
I've made a simple program in Java (Eclipse) that converts Fahrenheit to Celsius.The class is:
Java Code: package ehu.student;
public class ConversorTemperaturas {
/*--------------------------------------------------------------*/
/*Clase que dado una temperatura en Fahrenheit la canvierte en C*/
/*--------------------------------------------------------------*/
public float farenheit2celsius (float d){
float celsius, aux;
[code]...
When I write t.farenheit2celsius(25.6), appears the following error: "The method farenheit2celsisus(float) in the type ConversorTemperaturas is not applicable for the arguments (double)"If i change in the class the type float for double there is not problem. Why can't i use the type float?
I've got a Java application made in eclipse using lwjgl. I'm trying to make a working exe-file by the following steps:
- Export project as executable jar (copy libs into subfolders)
- Making a fat jar using jarsplice (adding lwjgl-jars and natives)
- Wrap the fat jar in an exe-file using launch4j
Result: Error: invalid or corrupt jarfile.
The fat jar is working fine. If I make an exe-file directly in jarsplice it also works fine but then I'm missing the possibilities of setting the icon etc.
This is what I do in launch4j:
- Choose an outputfile (ending with name.exe)
- Choosing the fat jar
- Specifying min JRE version to 1.7.0 (says JavaSE-1.7 in eclipse)
- Build wrapper
- Run -> Error (see above)
while exporting csv file from jsp im getting empty csv file.
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ page import="java.io.*"%>
<%@page import="java.sql.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
[code]....
I am trying to export a resultset to a csv file but the outputted csv file is blank with 0 bytes.The code I am using is below.
File file = new File(System.getProperty("user.dir")+"avatarDumps"+id+"_"+name+".csv");
try (FileOutputStream fop = new FileOutputStream(file)) {
// if file doesn't exists, then create it
if (!file.exists()) {
file.createNewFile();
}
String query = "SELECT * FROM avatars WHERE id='"+id+"'";
[code]...
Export data to excell using XSSFWorkbook ... I am having error
javax.el.ELException: java.lang.OutOfMemoryError: Java heap space
Now I what to modify my code to BigGridDemo.java
[URL] ....
[URL] ....
How can I modify my code to BigGridDemo.java. This is my code
import com.bea.common.security.xacml.context.Result;
import com.sun.jmx.snmp.Timestamp;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
[Code] ....
I have to export data to excel using XSSFWorkbook
I am having error javax.el.ELException: java.lang.OutOfMemoryError: Java heap space now i what to modify my code to BigGridDemo.java
org.apache.poi.xssf.usermodel.examples: BigGridDemo.java
POI - User - HSSF and XSSF memory usage, some numbers
How can i modify my code to BigGridDemo.java
Java Code:
import com.bea.common.security.xacml.context.Result;
import com.sun.jmx.snmp.Timestamp;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
[Code] ....
Currently am geting this error with above code
<FileDownloadActionListener> <processAction>
javax.el.ELException: java.lang.OutOfMemoryError: Java heap space
at com.sun.el.parser.AstValue.invoke(Unknown Source)
at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)
[Code] ......
I'm not sure if that's the right place to ask
But I am a bit confused:
I know that JDK means "Java Development Kit" , but isn't Eclipse the same thing? (so why it's called "IDE"?)
Or maybe Eclipse is a type of JDK?
Or actually JDK and Eclipse are 2 different things
i have an older file I was working on 2 months ago and when i try to open it in eclipse I get a message corruption error. I know this is not possible since I was just working on it a while back, and it's the same program version as what i am currently using..Or would I do a file import instead?
View Replies View Relatedit gives me an error at the end class part some syntax error insert "}"..
* Course: IT110 - Introduction to Programming
* Filename: MyCustomShirtsPhase1.java
*
* Purpose: Created a simple online ordering system for My Custom Shirts customers
*/
import javax.swing.JOptionPane;
[code]....
I just started Java programming bout 3wks ago and using jGrasp since then. But ive started using eclipse and just wondering if it can be set up to use allman style? I dont like having to use tab and backspace to get my brackets in line and neat. I decided to ask before i went snooping around the settings and mess something up since im not to familiar with it right now.
View Replies View RelatedI'm installing sonarQube in Eclipse indigo, How to run SonarQube in Eclipse Projects and adding sonar plug in into Eclipse IDE.
View Replies View RelatedI'm quite new in android programming and I've meet some problem in push and pull method. I have created 2 activity in my app 1 of them call Push_activity and Pull activity(Code are shown below). The String that I keyed in PushActivity have to "transfer" to the PullActivity when the button is pressed:
PullActivity
but1 = (Button)findViewById(R.id.buttonll);
tx = (TextView)findViewById(R.id.editText1);
tx.setText(getIntent().getStringExtra("extra"));
but1.setonclickListener(new onclickListener(){
[Code] ....
The app works fine when it started. When I press the button in PushActivity, it crashed and the error came from my textview in PullActivity.
I am new to Java and Eclipse. What does lined-out lines mean?
View Replies View RelatedI am trying to .wav file using java eclipse ..
[B]import java.io.* ;
import sun.audio.*;
public class AudioDemo{
public static void main(String[] args)
throws Exception
[Code] ....
And I am getting the following errors ...
Exception in thread "main" java.io.FileNotFoundException: E:pppp.wma (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at AudioDemo.main(AudioDemo.java:10)
I'm programming a game in Eclipse using Java for Android. I was wondering if any good example of a Health bar using Images. All I can find is people using the progress bar, but i feel that's unprofessional looking.
My goal is to layer 2 images. 1 being the frame of the health bar, 1 being the value of the health bar. I figured it would be something like moving the value health bar image few pixels over depending on the variable of health.
import java.io.*;
public class ReadNumbers
{
void input()
{
String File_name = "num.txt";
File numbers = new File(File_name);
[code]....
I am using eclipse and I went to file, add new file and named it num.txt:shot.png like show in the picture.
I'm trying to finish this game of hangman for java in the program eclipse. Currently when I run the program I get this in the text field:
in randomword
in string2Array[Ljava.lang.String;@22998b08
v
i
d
e
o
g
a
m
e
s
New Game
Enter a letter: s
s
???????????
After I try entering a letter it doesn't prompt for the user to enter another, nor does it change the ? mark when the user guesses correctly.
Here's the code :
import java.util.Scanner;
public class Hangman {
int NUMBER_STRIKES = 7;
int strikes = 0;
String userguess= " ";
private ArrayFunctions func = new ArrayFunctions();
String currentWord;
[Code] ....
I write lot of java code everyday. Sometime in hurry I forget to close the resources (connection,file,etc,) in JAVA6 and this causes memory leak issues. I am looking for an eclipse plugin which can complain for these minor mistakes. Also I am looking for some more eclipse plugins which can improve my source code quality like naming conventions, code redundancy, complexity, too long code outside methods, etc,.
View Replies View RelatedI 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!