35,619 Topics
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| | please give some piece of code that will make me understand that how to pass an array to a method/function? |
| | Since i am new to java, so please tell me that is there any way by which i can convert integer array to primitive int?? if yes, give some code. |
| | i need to return the ASCII value of the argument passed in the StringtoIntfunc(). But i am not getting the real ASCII values and i think the problem is with the return statements? please help. public class StringIntfc { public int[] StringtoIntfunc(String s) { int j =0; int k[] = …  |
| | If user enter all these then i need to use what to store it in a same group (many different group) [code]import java.util.Scanner; class addBook { public static void book() { int isbn; Scanner inputDevice = new Scanner (System.in); System.out.println("Enter ISBN ...\n"); isbn = inputDevice.nextInt(); int title; System.out.println("Enter TITLE ...\n"); …  |
| | i am developing a web app using .jsp , servlets and access as a database..i want to do it using struts framework..so can anyone tell me best book available for struts beginners ? i will prefer "struts 1"..as many books are available for this version. |
| | hi can you help me to modify this program to make it an isoceles or equilateral triangle? right now am having a right angle triangle! [CODE]import java.awt.*; import java.awt.event.*; import java.awt.geom.*; public class Triangle extends Frame { Line2D line1 = new Line2D.Double(50,150,150,150); Line2D line2 = new Line2D.Double(50,50,150,150); Line2D line3 = …  |
| | Hi guys I am able to drop my tables that I want but however when I come to trying to drop rows the rows do not delete. I have tried the following which have all produced the same error duplicate key TABLENAME : Any help you can give for a … |
| | I'm having problems adding a JPanel, which has a paintComponent in it, to a JFrame. If this is the only thing I add to the frame, it works. But as soon as I add a layout manager and add other components to the JFrame, it no longer shows the panel …  |
| | hi everybody, i needed to play mp3 audio in my AudioPlayer project i found jlayer is the easiest way to play mp3 audio,it plays well but can't stop playing my GUI stops responding until the audio is finished! any help please this is the code of the playing button -chooser … |
| | I need to write a program to find the first 10 prime numbers, i.e. integers that are only evenly divisible by themselves and 1. The hint I got was to make a big array of booleans named "isprime" and mark off all the non-prime numbers as false, i.e. isprime[4] = … |
| | i use eclipse with tomcat 7 and compile servlet without problem... but i try to blank jsp file its error what is the problem? [CODE]<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h3>Test … |
| | Hi all, i have a task which is create an algorithm from a java code.and i need help from u guys to check on my algo put a comment on what should i change or why it is wrong. I really appreciate if u could help me on this matter... … |
| | [URL="http://i.imgur.com/iwNHY.jpg"]http://i.imgur.com/iwNHY.jpg[/URL] i already set a path for jdk and etc, it worked before but now it doesnt work the code works on ecclipse so the code is correct but i have to learn how to compile using command prompt check out this image i get this same error i do … |
| | Hi all, this is a homework assignment that I'm not sure how to begin with. We are given all the code and I just need to finish a function to convert digits to words. For example, the string "1, 2, and 3." becomes "One, Two, and Three." The String "10" … |
| | Hello everyone, This is my first post in here :) Need a help with v. simple exercise. I need to ask user to input 10 objects of type Product (String name, Double price). I manage to done this. What i need to do now is to validate this inputs! I … |
| | Hi guys I have successfully set up my database which through my GUI I am able to create my tables that i wish and insert data into the table. My problem is through that I can only insert one row of data into a table so what would I need …  |
| | Hey, totally new to Java. How would i go about compiling .class or .jad files into .jar? What software do i require too? Thanks in advance |
| | hello how do you get three strings in to a boolean. Number 1 is greater than the number 2, which in turn is greater than third Number 1 is greater than one of the numbers 2 and 3, but not greater than both Number 1 is greater than at least …  |
| | Hello guys, Well, here's a simple one for you, which I just could not find the answer to due to lack of finding a good way to put it in words for Google. I'm pretty much a newcomer to Java, first project I used Java for, actually, and it was … |
| | Just wanted to introduce myself. I worked at Microsoft and Amazon.com, amongst other companies in various capacities. I now recruit for a really, really cool company. • 22 developers • 80 gigabits/sec video streaming • 600 million PHP requests/day • 35 million uniques...day! • 10 million registered users We are … |
| | Hello all, I've been fooling around with some code trying to teach myself somewhat about Linked Lists. I wrote this quick program that creates a random number in each node of a list and asks the user to guess the number. I have a quit choice that, when executed alone … |
| | Hi there well title says it all really. Is it possible instead of creating tables within my database to create the tables within a form in java? . If it is possible how would I go about doing this?. Before you ask yes my database is fully connected to my … |
| | [CODE]import java.awt.Component; import java.awt.Container; import java.awt.Dimension; import java.awt.Font; import java.awt.Point; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.PrintStream; import java.net.Socket; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.UIManager; public class PeerLogin extends JFrame { private JLabel … |
| | i'm extremely new to java, so i'm probably making a mistake somewhere. anywyas, my program works, however whn the user repeats the data entry, it does not get replaced with new data. [CODE]package convhms; /*HOW THIS WORKS: * * the main function captures the user input as a float * … |
 | I dont have any code to show you here . i would like to know that how a java application enabled to read information from an electronic id card (via a device which reads it)or to read information from a barcoded id card. Please show me a way to do … |
| | Hello, The following program has three JPanels - one to hold the image, one for the JComboBox and the last one for holding the JLabel, JTextArea and JButton. Once a selection is made in the JComboBox, the user will enter text in the textarea and press the button. The button … |
| | hello, I need help for my code, I created an interface that contains a button and a JProgressBar with the netbeans interface, but I do not know how to change the color of the JProgressBar, I tried the method setBackground (Color.color), click right on the JProgressBar proprties Does not change … |
 | Hey guys, I wish to do a project in Java Language but dont know what to do. I need ideas. Help! |
| | I'm study Compressing and Decompressing Data Using Java APIs from [url]http://java.sun.com/developer/technicalArticles/Programming/compression/[/url] but when i compile this example: [CODE] import java.io.*; import java.util.zip.*; public class UnZip { final int BUFFER = 2048; public static void main (String[] args) { try { String fileName = "your zip file" //but your zip file … |
| | Hi! How can i remove from a file a spesific line which includes "abc" string by using RandomAccessFile libary? Thanks |
| | Hello all! I want to ask you , how to pass variable, there's the example: I have variable String X in pageone.jsp then i open a new tab page to pagetwo.jsp (using JavaScript window.open) , Is it possible to use the variable X (from pageone.jsp) in pagetwo.jsp ? Please Explain, …  |
| | Hi All; Im just making a simple Desktop app. Ive got a need so that the user could be able to add data to the table dynamically. Ive done implementing the table and also code for adding rows. Issue is after i add the row it is not displayng in … |
| | hello all I use notepad++ to create my code I use dos command to javac the code some times when there is error in my code the the dos console shows many lines of error message my question is : if the error lines's message is 100 lines or more … |
| | hi every one I have a exercise when i going to use boolean. Im need to do 3 intergervaribals var1 var2 var3 and then i get same claim im going to get in to it like one of it is: The number var1 is evenly divisible by 7. i figuer … |
| | I was using Struts 2 as web framework and eclipse EE as my IDE. I can run my jsp/servlet application just like the way i wanted it to be but everytime i start the tomcat ver 6 server, an INFO log always appear except that its asking for log4j. here … |
| | I have a Sudoku puzzle and I need to make sure that each row and column have each number 1 through 9. What is the easiest way of doing this? The code snippet that I have so far is below. public static boolean rowsAreValid(int[][] array){ for(int i = 0; i … |
| | hi i am trying to make a hangman game and what ineed to do is when there is wrong answer to put pic of part of the hangman but dont no how to do it, here is my code thanks [CODE]int charPos = +1; String letter = ALetter.getText(); charPos = … |
| | Hi everyone, Is there a way to read the text in a pdf file like reading notepad? And after that, I should be able to use it, for example, in a text area or show it to my users without using another program such as adobe reader. That's really important … |
| | Hi people, How can I put a JRadioButton wherever I want in a JPanel? I tried setLocation() but it did not change anything. It is still on the north-center part of the panel. I think I'm missing something, but I can't figure it out. Thank you in advance. |
| | I am doing my project in datamining area.Please help me with the code for clustering a set of attributes in database.  |
 | So I'm trying to print the first six generations of the Game Of Life in a 7x7 array. I only have the code for one generation, but I can fix that later. I made the array types integers. What I need help with is getting the correct code for all …  |
| | Hello forum, Vaironl here. I already asked this question with no luck. So now I will to repost it without the code. I have a JPanel which contains labelsand JTextField + other components. When I minize the window and then restore it The components stay in place but the are … |
| | how can i implement a function ex: 'add item' without using oop ?! |
| | [CODE]import java.util.Scanner; class wloop { public static void main(String[] args) { int counter=2; int sum=0; while( counter<=200 ) { sum = sum+counter ; counter = counter+2; } System.out.println("The sum of integers from 2 to 200 is: " +sum); } }[/CODE] [CODE]import java.util.Scanner; class wloop { public static void main(String[] args) … |
| | How to start a servlet automatically when index.jsp starts. To put it simple, here is the index.jsp file. [CODE]<%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <title>JSP Test</title> </head> <body> I want to put something here, so a servlet automatically starts without doing anything. </body> </html> [/CODE] |
| | I am making a program in jsp servlet. There are three tables in database: category , subcategory and items. Their structure is like this :: category 'A' --> subcategory '1' ===> item 'i' ===> item 'ii' ===> item 'iii' --> subcategory '2' ===> item 'iv' category 'B' --> subcategory '3' … |
| | Can anyone tell me y is it that taxDeduc won't return the value? [CODE] import java.util.Scanner; public class PayollComputation { public static void main(String[] args) throws Exception{ Scanner get = new Scanner(System.in); //variable declaration int ctr, loc = -1, payrollPeriod, daysAbsent, minsLate, oTHours; int tempENo = 0; char ans, ans2; … |
| | Hello everyone or anyone! Could some please assist me on how to read a text file like this: ProgrammingAssignment1Data.txt 123 South Market Street Downtown 101 Package 0 1599 Burbank Road Cinema 10 Movie posters in tubes 1 1 order slip format is: Pick up address Drop off address item description … |
| | Hey I need help making a isEqual method in my singly linked class. The goal is to prove that both list have the same elements without necessarily having the same order. Now my method does call a different method in the node class, and it's job is to to search … |
| | Hello! I'm writing a very simple program to get used to using GUIs, and I'm having a bit of trouble. We're supposed to be writing a program that just creates a window and after the user puts in a number, it calculates the square root and the square of the … |
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