36,051 Topics
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| | hi java professionals! i am building a system that require printing reports. i need small tutorial. besides if you gave an advice about how to form a report, that would be nice. thank you!  |
 | Hi I was trying to make a remote desktop program using java socket programming. I have been successful to develop it for LAN. But i am wondering that how to use the same application over internet. As i am not an networking guy, i don't have enough knowledge of tunneling … |
| | am try to create notepad in java... menu item actionlisteners are not working...except exit... what is the problem with my code??? and is there any sequence follow... because am try to use jScrollpane the text area will be blocked??? code is.. [CODE]import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JFrame; import …  |
 | i'm able to upload files using jsp into my server.Now i want to download those files with a popup window showing open save or cancel options.can anyone tell me the code for it. |
| | Hi all, I wants to connect a legacy system (mainfrme) through my code (either java or .net) and need to mask the columns in vz450 file columns(fixed length files) and need to ftp into another mainframe machine,how to achieve this,any ideas are greatly appreciated.thankx  |
| | Hey guys, Im new to Java and i am trying to wrap my head around arrays and what not. What i am trying to do is create an array for a puzzle which is 4x4 and has the numbers 1 to 16 so far i have got this [code]public class … |
| | I'm trying to make a simple text game just for fun. Java is a language I want to learn so making a game is a great start. I'm having problem with my if statement however. This is an example of whats happening. This is only a few hours into the … |
| | [CODE] import java.io.*; class BinaryCounter{ private String b; private int binary; public String binaryConverter(int binary){ this.binary = binary; String temp; temp = Integer.toBinaryString(binary); return temp; } public String INCR(String b){ this.b = b; char[] temp1 = new char[b.length()]; temp1 = b.toCharArray(); char[] temp2 = new char[temp1.length+1]; for(int h = 0 … |
 | hi guys got a question here how can you display output 1 to 35 in a variable declared with the value of 1 (a=1; with the condition of 1>100 ??? in a for loop structure sorry if i dont make sense guys.. im kinda new to this thing |
| | Hi, I made this thread for our groups assignment. We are suppose to get 3 program codes, at least 250 lines each, from anyone that created one. As soon as we retrieve them, we are supposed to evaluate them and find out what type of things they used and how …  |
| | Greetings to all experts, I am a newbie here in Java OOP and is struggling in practicing how to code a OO program, using Java. I hope anyone can give me a head start please. Here is the requirement which i am suppose to complete: [B]Input[/B] The first line of …  |
| | Greetings to all experts, I am a newbie here in Java OOP and is struggling in practicing how to code a OO program, using Java. I hope anyone can give me a head start to enable me to write the main method to test the 2 methods. Here's the question: … |
| | i am new in java programming, can someone help me create the code for it.thanks. |
 | Hello, i have used ireport tool for creating jrxml template for creating chart(XYLine chart). and i used this jrxml file in java code to create chart. Here i passed csv file as data source. Now i can freely change color,title,subtitle,font ect from java code . what i want is how … |
| | I am using netbeans to do "Library book search system"in EJB. I have a html page in which I want to display the list of books that match with the entered keyword. I get the keyword from the user and send it to a servlet through an ajax funtion which … |
| | Hi there, I am new to Java and have a question about user input. In my book they use Keyboard.readInt() etc A tutorial I watch does Scanner input = new Scanner(system.in) I also saw a few videos doing, well I don't remember exactly but something like... I remember they imported …  |
| | Hi, on our webpage, we display text taken from the DB, that includes html character codes like <br/>. Obviously, this display as <br/> on the page, but we'd like to actually see the newline. Its probably stored like this in the DB because we did an escape on the text … |
| | I am new to programming and I don't know how to make interfaces. My code is : [CODE]public class CarsDescription { /** * @param args the command line arguments */ public static void main(String[] args) { interface Domestic {} interface Import {} interface Japanese extends Import {} interface German extends …  |
 | I want to create a tool tip which has fix rectangular size and show custom font's... Any tips or link or any material to start with? |
| | I m using windows vista, and i have set l&F of my app "classic look and feel", which is fixed, as windows seven doesnt have classic theme , will java "classic look and feel" work on windows 7? If not then how can we make it work? :) |
| | [/B]Write a program to read age and gender of 45 Students enrolled in an Art Class. Display the total number of students whose age is between 8 and 12. |
| | iam inserting the emp details to TABLE, values are updating to ATABLE but iam not getting updated values in view (java sript in jsp file) please suggest me how to solve this problem  |
| | I am creating a media player using java media framework. I want to develop a sound equaliser for it. where can i find codes for it. |
| | Hello! [CODE]public static void main(String[] args) { System.out.println("Type the operation system (Windows or Linux):"); Scanner oku= new Scanner(System.in); String os=oku.next(); if(os=="Windows") { CreateForWindows(); } if(os=="Linux") { CreateForLinux(); } else { System.out.println("Wrong selection. Program closed."); return; } return;[/CODE] It always show me Wrong selection. Program closed. I can not understand why … |
| | javascript:document.body.contentEditable='true'; document.designMode='on'; void 0 the codescrap entered in the address bar makes any web page locally editable, you can play with any element or content  |
| | Hi I need help its actually working fine but i don't know how to put a control structure in knowing whether the input is wrong, example when i instruct user to input number it must be less than 100 if not error will show up that is only the last … |
| | am a student developing a programe for a lib but am failing to create new JFrames when buttons are clicked i need help handing in with 3 days |
| | Hi there, I am a complete newbie to JSP so apologies if this is a blindingly obvious question - I have researched on Google, but can't get this working. I have a simple switch statement as below: [CODE] <% for (int a=0; a<10; a++) { if ( null != countryID[a] … |
| | Hello, I am a Thai beginner and this is my test code. I run my old code and it error 500. I don't know how to fix it because last time i can run it and no error. And i didn't change anything in my code, just run it again. … |
| | i am not saying that all of my jar files are not working. in fact, all of them do work so far except for this one game that i've made. it runs perfectly in my editor, but its jar file will not execute. i checked its MANIFEST.mf file and the … |
| | Is it possible to have a python program communicate to a java program over the internet? Like could i send text over sockets from a python program and have a java program receive it. |
| | Hi there, I am supposed to make a Java programme called prize collection My programme is a follow: [code]import javax.swing.JOptionPane; import java.util.*; import java.lang.*; public class PrizeCollection { public static void main (String[]args) { // Declare variables and arrays which will be used in the programme String[] Name = new … |
| | i tried to add enum.. not sure why its not working... pls help. [code] /* * To change this template, choose Tools | Templates * and open the template in the editor. */ import java.io.IOException; import java.io.PrintWriter; import java.util.Random; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * * … |
| | I am a beginner to Android programming. I am trying to convert an string(from an EditText widget) to a double Whenever i run the program, it crashes whenever the parseDouble function is used: [CODE]Double.parseDouble( input.getText().toString() ); [/CODE] Does anybody have an idea why parseDouble causes my program to crash and … |
| | Hi everyone I am a beginner in java,and i need your help.If i have a array like this : [CODE]int [] eda={2,5,8,9}[/CODE]how to use the get and set methods for consult and change the data of this array..?? Please help me with a simple example if anyone can.Thank u I … |
 | G'day everyone, I just have a few questions about Java programming language. Before getting started with the question, I was actually doing some reading for my java course and there was an implementation of Coffee vending machine in java. Therefore, the questions came to my mind and these are: Do … |
| | I need assistance in printing out a Quine. I googled it and stuff, but I didn't understand the code snippets I saw. Can anyone explain in a more lucid tone? |
| | HI everyone,i am a biginer in java and i need your help...i have write a prgram but i cant execute can anyone help me for execute it the program is : package sensor; [CODE]public class sensor { private String Id; private int Kordx; private int Kordy; private char[] getId; public … |
| | HI everyone!I am a beginner in java and i need your help,please if u can help me i have write this code : [CODE]package person; public class person { private String Name; private String Birthday; public person (String name,String birthday) { super (); Name=name; Birthday=birthday; } public String getName() { … |
| | Hello! I have write a program on Java. This Java program creates a file which have C code for Windows. I need to compile everytime this C code by copying it to another IDE. Can i do this compile process from java program? (C code is very simple and it … |
| | Hello there. Could you give some insightful input into my problem: My program is fed multiple lines of input. The input is composed of a name and two values of that person. Each line is of a new 'person' e.g. "James 23 15.05 Lucy 51 25.523 Kam 42.4 21.54 Jak … |
| | I'm trying to learn java. Now I want to test the buttons, but I don't understand the part of the layout. Can't I just write button1.setLocation(50,50); or someting like that ??? Thanks in advance. |
| | Hi there, I am not good with Java. Can someone explain this for loop for me please. For a for loop, to my understanding the syntax goes something like, [CODE]for(int i = 0; i < someNumber; i++) { //...some code... }[/CODE] but in this one I have seen, the for … |
| | HI! Can someone help me regarding my USB and a Java program. So I have created a Jar file where there is a login form. I have my USB that is partitioned in two. What I want to happen is before I open one of the partitions, my Login form … |
| | Hi all, Wonder if someone could please lend a hand, I have a courses.txt file which is read into a Course String array I also have a program.txt (A list of 8 courses required to pass the program) There's a menu option to change the Program, however a condition of … |
| | Hi I'm new to GWT and I am learning using the GWT plugin for eclispe and also have smartGWT. I have found afew tutorials online which have been very helpful but havent found one that explains how I can connect, send, recieve and display database information in the different widgets. … |
| | Good Day! My professor in object oriented programming wants us to collect a JFrame form to a class.... he told us the code but it did not work...Hope you may help me...and thanks in advance [code]import javax.swing.JOptionPane; public class Firm { //---------------------------------------------------------- // Creates a staff of employees for a … |
| | Is there any method in java to know size of decimal?? I mean 14 has 2 digits , 100 has 3 etc....... I m going to implement auto generated number like A0001 , now i want to change it on each new entry , so Does any one has any … |
| | Hi All, I am trying to load from a .dat file a collection of student objects However on load it only loads the first student and then stops I've tried to put print messages in but with all the nulls I really can't seem to work out what is happening. … |
| | Having some issues figuring out how to code my add, modify, search, delete, and save buttons in my program. The buttons need to also adjust the size of the array once I add or delete the an item. Any help would be great. I may be going about this the … |
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