32,204 Topics
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 | Remember High-school maths ? there was this greek letter Sigma ( if i remember correctly ) , followed by an algebraic function like `f(n)` , where `n = a to b` would be short-formed as `a` below the `sigma` , and `b` sitting on top of it. I want to … |
| | Hi, I am new to the eclipse plugin developement. I want to create an launch button (eg: Run, Debug button). the only link that I found was http://www.eclipse.org/articles/Article-Launch-Framework/launch.html and it is difficult to understand. could some one point to a tutorial that is explained more appreciate a response Thanks |
| | hello guys, i have created a jform which contains these field; ComboBox_decCode(description code) ComboBox_itemCode(item code) combo_Area(Branch_Area) ComboBox_dept(Branch_Code) txt_sn(Serial Number) i want to generate a serial key based on these information in my database. Description Description_Code --------------- ---------------- Lands & Building LB(001) Branch_Area Branch_Code ------------ ------------- Labone LB(001) now the idea … |
| |    import java.awt.FlowLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.JComboBox; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; public class OtakuHigh extends JFrame{ private JLabel label, label1, label2, label3, label4, label5, label6, label7, label8; private JTextField text1, text2, text4, text5, text7, text8; private JComboBox Mbox, Dbox, … |
| | One thread increases an integer named "counter" , and another decreases the same integer. Using synchronized statement on LockObject to control access to counter. If i understand correctly i have to use an Object reference. Can i use synchronized statement on counter somehow? public class Synchronized_Block_Demo { public static int … |
| | import java.awt.FlowLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.JComboBox; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; public class OtakuHigh extends JFrame{ private JLabel label, label1, label2, label3, label4, label5, label6, label7, label8; private JTextField text1, text2, text4, text5, text7, text8; private JComboBox Mbox, Dbox, Sbox, Ybox, SCbox; private JButton Qbutton; … |
| | Hello, im currently working on a program to split a string based on symbols only, i need to seperate the string around the symbols whilst keeping the symbols as well eg. test_String_123_^; would result in an array containing : [test] [_] [String] [_] [123] [_] [^] However although i have … |
| | Hi everyone. I am just learning how to use servlets. I need to make a lotto application. I have this template: import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collections; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MyLottoServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, …  |
| | I am to have the user input a temperature and have the computer output which season it (probably) is based on the temperature entered. I have written this much and when I run the program, it seems to have the user enter the temperature in an input box and then … |
| | Hello Guys, If I have a string "Registration 00DL5876 Make" is there a way to match the first word and the last ("Registration" & "Make") and than pass the substring "00DL5876" to seperate string ? how about "Primera SR 2.0 D Colour" if i want "SR 2.0 D" ? I …  |
| | Hi, can you kindly provide me the list of essential jar files for both hibernate and spring(hibernate and spring integration) thanks for your time  |
| | import java.awt.*; import java.lang.Math; import java.awt.event.*; import java.awt.Graphics; import java.applet.Applet; /* <APPLET CODE=draw.class WIDTH=600 HEIGHT=200 > </APPLET> */ public class draw extends Applet implements ActionListener, MouseListener, MouseMotionListener { Button bDraw, bLine, bOval, bRect, bRounded,bSelect1,bSelect2,bHeading; Point dot[] = new Point[1000]; Point start, end; int dots = 0; boolean mouseUp = false; … |
 | Hi so i have created this table for a sales person. class SalesSystem { //Sales Person One public void SalesPersonOne() { int i=0; System.out.println("Sales Person 1"); String newLineMark = System.getProperty("line.separator"); String leftAlignFormat = "| %-7s | %-9d | %-9d | %-9d | %-9d | %-9d | " + newLineMark; System.out.format("+---------+-----------+-----------+-----------+-----------+-----------+" … |
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| | Hi, I'm trying to wrap lines in Jtree nodes, I found this code which is working good for me but a with a minute defect. On selecting Jtree node, only second half of the text is highlighted in blue leaving first few characters, I tried a lot to fix this … |
 | //I want to make a program so that i can move a pawn around a board. It only has 4 positions. I am wondering how i should //go about the action listener, as in should i check using a for loop? //The pawn begins in position 0 and depending on … |
| | I have to complete this programming homework which consists of building a hangman game. However, the problem is: I do not know how to make it so that, when you guess a correct letter, it reveals that letter in the hidden word while still keeping the other parts of the … |
| | Hi, i need to program this algorthim using 2 stack in java, for example to evaluate such a given valid infix expression : (5*3)+(4/(6-2)). i need help, i don't know much about stacks.. Create two empty stacks, one for operands, and one for operators. Read infix expression as a string …  |
| | SELECT * FROM myTable WHERE columnId < 45; while (rs.next(){ result of row1 goes to row1.txt; result of row2 goes to row2.txt; result of row3 goes to row3.txt; result of row4 goes to row4.txt; } |
| | Hello All I am writing this program which: - generates two random numbers -ask user to multiply them -checked users answer to see if its correct. - if not correct, asked the user to guess again I have everything working except the loop that is needed to have the user … |
| | This is the code that I have so far but does not work. When called, the metod returns a pointer whose first and last points to null. The "given" linked list a linked list that we have to make using the add method from the inherited Linked List class. public … |
| | So I am using processing- similar to Java. I have made a button where I can add more ellipses (max 4) or press a different button to remove ellipses. I also made 4 different sets of keys for each of those ellipses to move. However, they can only move individually … |
 | Hi all, I wonder if you can help me to understand this. I came across the following code: @Override public String toString() { return String.format( "hourly employee: %s\n%s: $%,.2f; %s: %,.2f", super.toString(), "hourly wage", getWage(), "hours worked", getHours() ); } // end method toString I have some problems with the … |
| | # Im trying to input 11 digit numbers but i got an error when parsing from string to int # JLabel lblMobile = new JLabel("Mobile No. :"); add(lblMobile); JTextField txtMobile = new JTextField(""); add(txtMobile); int CUSMobnum = Integer.parseInt(txtMobile.getText()); |
| | Hi All, I'm trying to use jdbc connection with sqlServer 2000. I'm using j2sdk1.4.2. And i have service pack2. I've installed the .jar files mssqlserver.jar, msutil.jar, msbase.jar. I have these jar files in E:\j2sdk1.4.2_04\lib. I'm trying to connect with the following program. [CODE] import java.*; import java.io.*; public class Connect{ … |
| | I would like to create an incremented variable by how many passes I go through my for loop. This is what I was thinking. I would like my variable to total with the pass number at the end. So the first pass would be total0, followed by total1, total2, total3, … |
 | Hey.... I am just days away from completing a year-long project and want to convert the netbeans project to a stand-alone java program that can be installed on another system without netbeans. YEAH! Sorry - did my happy dance! the Program has a .main java file and about 15 other … |
| | I am trying to change my database(s) from network to embedded. I believe that the driver is working and has found the database requested with the following code: try { // connect method - embedded driver String dbURL1 = "jdbc:derby:Databases/Armor"; Connection conn1 = DriverManager.getConnection(dbURL1); if (conn1 != null) { System.out.println("Connected … |
 | hi all; How compute runtime of a spicifique programm? if i run same programm several time, in same enviroment, is the execution time will be frozen? i need some ideas,suggestions, explanations. Thanks. |
| | Hi there, I'm currently a student in an intro to Java course at the college level. I've been doing well all semester, but I've ran into trouble with our latest lab. It's a bonus lab, so naturally the content wasn't covered in class. After playing around with what I found … |
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