35,618 Topics
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| | Hi all, I understand the concept of Serialization but,want to know 1.when we use this in realtime? and 2.under what situations we can use this? I tried to google but cant find an satisfactory answer.Please help me out. Thanks in advance  |
| | Hello, I'm writing a program that acts as a 'pocket' where the user is able to enter a kind of coin, such as, a quarter and the amount of quarters it has. I was assigned to do 3 different class, the Coin Class in which the coins and their values …  |
 | I'm trying to play the sounds according to what's called on the arraylist but the sounds are playing randomly and it seems like the sounds are overlapping. what is wrong with my code and what code should i use or add? can anyone help me? here is my code: package …  |
| | Is anyone can help me in getting the whole java technology details which like start to end of java in a manner such that i can refer to learn and know how much java i got till now. please help me. |
| | Sir please help me to develope Support Vector Machine for plant disease classification in java?? |
| | hello, I am working on networking project. I have made client server program through socket program. Now, i don't know which library is used to detect hardware i.e. attached on machine. mean how can i detect keyboard is attached to my pc or not? mean how can i detect mouse … |
| | Hello, I am making project of Face detection from image. I have read OpenCV library for it, but exactly i can't get how to find multiple face from image. i had group photos of my friends, i want find face of each person of the photo like tagging in facebook … |
 | Hello everybody, could someone please urgent help me with this assignment question? I just need some tips on why my prompt dialog is not working correctly. The script is below after the assignment question... Finish the coding of the class LightController by completing the public instance method runLight(). This method …  |
| | Do anyone know how to set the title of a program files extends with JApplet? |
| | I have only one week to learn java at a intermediate level. What books tutorials you recomend? Another thing I have to learn is java Algoritms and Data structures. Can some one show me how? I have a little bit understanding of arrays if while for switch classes try catch … |
| | I'm making a program that will let you access a system via encrypted code from a USB. But I can't seem to figure out how I would go about making the user login to the computer via USB. I'll add the code in the code so far. /* This is …  |
| | hi anyone I am doing a car insurance program in java and i need to understand this error. the program goes like this. it depend on the driver's age and how many accidents he had. from 1 to 5 it have difference charges with additional surcharge an for 6 you …  |
| | I am new to bootstrap framework..I need just small loader WITH bootstrap .. and Just call that small loader with javascript.any help ??  |
| | I have the following snippet of codes first each of the thread is a socket waitign for connection where its gets a connection does all he necessary. Thereafter another section in the run it does this //run a new db connection and does a select where all those have not … |
| | Hi Guys, I managed to fill the jtable with the table from the database. Now I want to add specific rows from the database table into the jtable. So I have a textfield and a sql statement: So "Select * from tbl where name =?" I want to add all … |
| | Hello, I am trying to connect to a hosted database on netbeans(java). So far I have the following: Connection con = null; Properties conProps = new Properties(); conProps.setProperty("user", "user"); conProps.setProperty("password", "password"); try { con = DriverManager.getConnection("jdbc:mysql://host:3306/dbname", conProps); String sql = ("SELECT * from products"); st = (com.mysql.jdbc.PreparedStatement) con.prepareStatement(sql); st.executeQuery(); rs … |
 | ***Please don't post "spam" or "Thank you" posts in this thread since this is meant to be used as a guide for all beginners and I am sure we would like it to be on topic. I hope you understand this.*** **» Introduction to Java «** To start off, [Java](http://en.wikipedia.org/wiki/Java_(programming_language)) … |
| | Hello, I am a little stuck. I have grasped the concept of methods, understanding thier purpose but still unsure on how to code it. Below is part of my code I kindly need guidance on. I am trying to create a method which can hold roles and depending on which … |
| | I added a Breakpoint here: public class JavaApplication8 { I added another here: public static void main(String[] args) { Finally, I added one more here: Scanner input = new Scanner(System.in); Ctrl + F5 is supposed to start the debugger, right. Mine doesn't work. When I hit Ctrl+F5, another window opens … |
| | Programming is such a customizable duty. I would like to ask some approaches (not solutions) to coding a program that has a GUI that functions as a cooking timer for hamburgers, steaks, cookies, etc. Call it reasoning or planning assistance for software development. I am having a tad bit of … |
 | Hello.I am currently a newbie in Java and I was wondering if smn would help me for this project. Thanks. JAVA PROGRAMM Build a class named Rectangle that represents a two - dimensional area . This class must contain: public Rectangle ( int x , int y , int width, … |
| | I'm new to Java and im trying to create a game that uses an AnimationTimer. I want to loop through the question one at a time but at the moment the for loop I use just adds all the question to the canvas at the start of the game. I … |
| | Hello i have been working on my assignment for java for a while now and I was hoping I can get some help. My teacher makes us run test cases to ensure our code works. My code compiles successfully but does not pass any of the test cases. It would … |
| | Hi guys Does anyone know any java api which can handle .xlsx file with 10lakh records? I have tried using POI XSSFReader, it is not supporting this much large file. My xlsx file size increases horizontlly as well as verticaly. |
| | Hi guys I am facing issue in an array list where i am putting a value at specified index, but it is replacing all the index value in it. I am putting map inside a arraylist, now in a loop when i am putting value in list.add(i, Map).The value at … |
| | Hello Daniwebers! I am trying to insert the values that were selected in a jtable. I know how to display the sql results in a table but don't how to add the selected values into it. Example: only display the items that the users has searched for and add them … |
 | Cannot find symbol for a basic java command? import javax.swing.J0ptionPane; public class HelloGUI { public static void main (String[] args) { J0ptionPane.showMessageDialog(null, "Hello, world!"); } } c:\Users\Nathanial\Desktop\myJavaPgms>javac HelloGUI.java HelloGUI.java:1: error: cannot find symbol import javax.swing.J0ptionPane; ^ symbol: class J0ptionPane location: package javax.swing HelloGUI.java:6: error: cannot find symbol J0ptionPane.showMessageDialog(null, "Hello, world!"); … |
| | how do i develop a software for insurance database system |
| | Hello sir, Is it possible to integrate matlab with java |
| | Hey there everyone, I am currently working on and Assignment that is due tonight and I feel like I am close but can not exactly get to the end. I would appreciate any feedback possible. Kinda stuck at the moment. ---Modify the Inventory Program to use a GUI. The GUI … |
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