35,618 Topics
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 | String contentType = request.getContentType(); if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) { DataInputStream in = new DataInputStream(request.getInputStream()); int formDataLength = request.getContentLength(); byte dataBytes[] = new byte[formDataLength]; int byteRead = 0; int totalBytesRead = 0; while (totalBytesRead < formDataLength) { byteRead = in.read(dataBytes, totalBytesRead, formDataLength); totalBytesRead += byteRead; } String … |
| | I need to fix a minor error in my assignment. The prompt is: Assignment #2 will be the construction of a program that reads in an unspecified number of integers from standard input, performs some calculations on the input numbers, and outputs the results of those calculations to standard output. …  |
| | When I run this I get an error, it's like it's not reading the printf and honestly I have no idea what else to do, can someone help me? import java.util.Scanner; public class MyCarPool2 { public static void main (String [] args){ //Declarations final int WEEK = 5, MONTH = …  |
| | What is difference between developing website using Java and PHP?  |
| | hi james/anyone/stultuske I am again trying and practicing my java. I am doing this payroll program which include doing methods and array and have no idea where I have gone wrong again i have debug it but inno me, cant find the error and it is there somewhere anyway here … |
| | Hi All, I have a situation where i need to retrieve parentpath from childname in JFace Checkboxtreeviewer. By using below code, i can get both the path seperately. getCheckedElements() - child elements getExpandedTreePaths() - parent elements How i can map childelements with parent? here i get both seperately. When i … |
| | Hi All, when i click the save functionality my request is processing and values are stored in database.but the request is coming from chrome browser its not processing and redirected to my error.jsp page.could you please help for this issue.  |
| | Hi All, I have a JSP which contains a form , when the form is submitted the control comes to servlet . this is working fine in IE. but in google chrome it going to error page . When i debugged from the develper tools , i found one difference … |
| | Noob Question. I need some clarifications with using class as a reference datatype or if you have any links that direct to a straightforward explanation,i'd highly appreciate that. (I had been surfing the net for hours, read some books but the explanation is either vague or just an introduction.) |
 | While referring to a particular course I came across the following code to retrieve the current day: int julianStartDay = Time.getJulianDay(System.currentTimeMillis(), dayTime.gmtoff); long dateTime; dateTime = dayTime.setJulianDay(julianStartDay); day = getReadableDateString(dateTime); private String getReadableDateString(long time){ SimpleDateFormat shortenedDateFormat = new SimpleDateFormat("E MMM d"); return shortenedDateFormat.format(time); } My doubt is why are we …  |
| | what are the things a new developer should keep in mind while writing a program? please reply. |
| | How do i write a simple login page using Java programming language with the following components -JLabel -JTextField -JButton |
| | Hello All, Can anyone provide me the sample program of JFace Treeviewer. As i google it but cant find the right example. Any links with Simple example. Kindly help me out; Thanks in advance. |
| | HI guys ..... i m trying to create a search engine through java..... is it possible?? if yes then would you please tell me how....?? |
| | public Set<Product> getProductsByPriceFilter(Map<String, String> filterParams) { Set<Product> products = new HashSet<Product>(); String l = filterParams.get("low"); String h = filterParams.get("high"); BigDecimal floor = new BigDecimal(l); BigDecimal ceil = new BigDecimal(h); return products; } I have discovered an interesting phenomena. I have filterParams that should <String, String>. However, if I use filterParams.get … |
| | Advice please: Which of these 2 methods looks better ? like professional code? Both methods are doing the same thing(simpleUpdate). Except the way am passing the parameters are different. The method manageJob is used to call the method simpleUpdate to update the status in DB. public <T> void manageJob(Class<T> entityClass,String …  |
| | Hello, After making a database connection to java, I have been trying to populate my JTextFields and having a hard time to do so. Can anyone give me a quick example of what class or method am i suppose to use in order to get the results? After that my … |
| | hii ^_^ I have a problem which is I have to delete a book when( I enter it's name and then press the delete button) and that book has been saved as an object in an array of list, and then written to a (txt )file.. once I press the … |
| | # PLEASE some one help me to explain the code. This code is for a ScientificCalculator # package calculator; import java.math.*; //@author Hadisur Rahman public class ScientificCalculator extends javax.swing.JFrame { private boolean zerodisp; private boolean decdisp; private boolean dgrrad; private boolean sh; //sh means =shift private byte op; private double … |
| | hi :))) I want to ask about sth wich is > I have to write a programme using netbeans ..which I'm new with it ! that programme should let the user to enter the book name ,serial num. ,price ..etc in text fields , and I have buttons that let … |
| | Is it better to log `exception` or `exception.getMessage()`while logging an info log or an error log. I'm pretty sure that is related to the context but I'd like to know from a technical perspective on which would be better for any application or if its all the same. |
 | So im doing an MMO, i was progressing alot, 6 months progrramming this thing. The problem is that i was testing offline my game, today i have the brilliant idea to port foward my server and make it online, i knew it was gonna be slighty slower, but its awful! … |
| | I recently faced a problem when I was trying to run a junit test in eclipse. I was getting a ClassNotFoundExcpetion. So, I googled a bit and tried out a solution where I had to move the JRE System Library below the rest of the jars and it worked!!! But …  |
| | hi, i want to attach a handwritting pad(ivista tablet) to my java project. Any suggestion or any method how to make it possible. I tried the google but doesn't find any help  |
| | the process cannot access the file because it is being used by another process java I use this code to transfer a file to an other Files.move(Paths.get(file_picker1.getText()), Paths.get("random location\\.png")); I understand that I have to close it. but Im not finidng how to do that. search in google but no … |
| | I want to reduce the number of if statement in my code. I need some advice on how to do this. I have a simple form, when I click submit, it trigger a workflow for approval process. public void initiateWorkflow(){ //some code here //workflow is started } Next, when the … |
| | Im having a problem with updating data in SQLite this is the full code who execute after pressing the button try { PrintWriter writer = new PrintWriter("d:\\"+LBL1.getText()+"\\"+TL3.getText()+"_"+TL2.getText()+"_"+TL4.getText()+"_"+TL5.getText()+"_"+TL1.getText()+".txt", "UTF-8"); writer.println("Invoice Number = "+TL1.getText()); writer.println("Seda = " +TL3.getText()); writer.println("Date = " +TL2.getText()); writer.println("Documental Class = " + TL4.getText()); writer.println("Status = " + … |
| | hi james remember I told you that i have another program for you to help me with, well here it is something is wrong again with my calculation. i have debug it, run through and but still cyah see it. double gross_sal , netpay , hrswrked = 0, rate_of_pay = … |
| | I am using eclipse, Java, and seting up Ajax-DWR. When I run my program nothing happens. I belive This is cause by warning in my xml file. I tried looking on google but didn't found any thing. ## files Path, jar files, etc...: ## Take a look at the attached … |
 | tl;dr: Looking for a java library to solve equations. Suggestions welcome. I'm looking to write an app for the sake of writing an app. I figured that, as a firmware guy with minimal EE hardware training, a good practice app would be one that acts as a helper for EE … |
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