35,618 Topics
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| | content eg. 1. java.lang.String, 2. java.util.HashMap<Integer, Integer>, 3. java.util.ArrayList<Integer>, 4. java.util.HashMap<Integer, ArrayList<String>>, 5. java.util.HashMap<Integer, ArrayList<ArrayList<String>>>, I need a regex for matching method parameters in Java. I have tried with this one.. ([a-zA-Z\. ]+,)|([a-zA-Z\. ]+<[a-zA-Z\., ]+(<[a-zA-Z\., ]+>)*>[ ]*,) It is matching first 4 strings. But it is not matching 5th one, … |
| | Hi, Is it possible to create a jar file (mobile app) from JSP files? I mean instead of using some toolkit to compile the java files and create the jar file, can I do the same using JSP files? Thanks.  |
| | hi... Iam doin a research project in cluster based bit vector algorithm... i.e. a combination of clustering and bit vector concepts... will you help me to start the implementation...??? |
| | I just wanna be able to input 10 integer numbers, display the numbers, then be able to modify a specific number I have already entered, then display the new updated numbers again. [code] //Date: 4/6/2010 import java.io.*; public class EnterNumbers { public static void main(String[] args) throws IOException { BufferedReader … |
| | [quote] I am working on a homework asisgnment from school and need some help. I am stuck on coding to set a private field to my Box class with three constructors.. It's kind of confusing when dealing with more than one constructor. The following is the code for the box … |
| | I am trying to make a row of decreasing squares with a recursive method, but none of the squares comes up besides the first one. Any ideas where my code is going wrong? [CODE] import java.awt.*; import java.awt.event.*; import java.util.Random; public class Lab19ast { public static void main(String args[]) { … |
| | What is the meaning of compiling a regular expression? Not only in java but also in other languages like python has compiled representation of a regular expression. Actually it always bothers me what happens when a regular expression is compiled? All I know is it makes further matching of patterns … |
| | import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TicTacToeV1 implements ActionListener { /*Instance Variables*/ private JFrame window = new JFrame("Tic-Tac-Toe"); private JButton button1 = new JButton(""); private JButton button2 = new JButton(""); private JButton button3 = new JButton(""); private JButton button4 = new JButton(""); private JButton button5 = new JButton(""); … |
| | Dumb question, but I've searched everywhere and found nothing specific: is it possible for HSB values to translate directly into a colour (eg. a hue of zero equals red) instead of passing them through an RBG conversion? Also, dumber: I'm not understanding the arrrays people are using, for example [URL="http://www.squarebox.co.uk/users/rolf/download/ColourWheel/ColourWheelApplet.java"]here[/URL] … |
| | I tried to execute following target. [code=xml]<target name="A"> <svn> <checkout url="${svn_url}" destPath="ab"/> </svn> </target>[/code] and I got the error "failed to create task or type svn Cause: The name is undefined." I have TortoiseSVN, ant home is ok, got the antsvn lib and put them into ant_home\lib So I don't … |
| | I want to enable/disable a table cell based on the contents of another cell. e.g. if the reference cell value is "true", then enable the cell, otherwise disable the cell. I have set up isCellEditable() to do this and it works if the reference cell already has a value when … |
| | Write a Java Class file for the class Account that represents a bank account. Usually, a bank account has a unique account number that is used to identify it. Your class should generate the account number automatically whenever a new account is created. The class should also store the account … |
| | Hi struggling with java - we have a class Structures and Algorithims in which we are supposed to pick up java in 5 weeks Have been pouring over material and searching sites but trouble is when I start to write ends up nothing seems to work unless we copy and … |
| | hi, can anyone help me to solve the following java problem write a java program for holding a stack of up to 10 characters. pls help me. thanks you shantuli |
| | Trying to learn Java on my own with the book "Starting out with java" The question is this Write a class that has three overloaded static methods for calculating the areas of the following geometric shapes: circles rectangles cylinders (it gives the formulas for the are of them) Because the … |
| | I am trying to understand how draw graphics to the JPanel class but i have only been able to display one object at a time(unless i draw muiltiple shapes in my extended JPanel class but i dont want that!) [CODE]import java.awt.*; import javax.swing.*; /* Create a new graphics component that … |
| | I need to use Scanner and StringTokenizer to find a word then print that line in text area when found it. This is the Search Button's coding : [CODE]private void btnSearchActionPerformed(java.awt.event.ActionEvent evt) { try { Scanner scan = new Scanner(file); String search = txtSearch.getText(); while (scan.hasNextLine()) { line = scan.nextLine(); … |
| | Now, I've just done a calculation program. What I need now is to build a [B]Semester[/B] class that will contain information about the list of subjects taken in a semester, the corresponding grades as well as the grade average for that semester. How should i build the class to store … |
| | The code for sleeping barber problem. When the status of the barber is set to busy then the customer cannot have a hair cut and is added to the waiting queue. when the customer is set to free then the customer have a hair cut. Here the problem is that … |
| | I want to shift the value in columns after comparision. I am having problem with the getString command. It results in an error ….my code is like this [code]for(p=1;p<20;p++) { Class.forName("com.mysql.jdbc.Driver"); Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/srch","root",""); Statement stmt2=con.createStatement(); ResultSet rs2=stmt2.executeQuery("select * from "+tbl+"c"+startc+" where keyword='"+sk[i]+"'"); cnt=0; if(rs1.findColumn("count"+p) > 0) { System.out.println("count"+p); cnt=rs2.getInt("count"+p); if(cnt … |
| | hi all community people iam an IT student .i have a 2 months free time.i want to do a miny project in java,i have knowledge in java(j2se),swings,jscript. if any one have mini java project ideas then send to me.iam waiting for good suggestions.pls reply me as soon as possible. |
| | I would like to make a dwg->pdf one, and I also prefer java programming language, but I do not know where shall I start. Are there any good tutorials for any conversions, etc? Thanks!  |
| | Hi All I have been stuck on this for a number of hours now, really cant workout how I should go about making this work, I am not looking for the correct code, More looking for what I should be looking up and what I have done wrong. What the … |
| | Hi Everyone. I am taking a class on java, and have made it to chapter 7 without many problems. I am having really bad problems with this, getting an illegal start of expression where it says public void sort....I have tried so many things, I probably even have things out … |
| | hi can anyone give me a suggestion as to how i could replace data in dat file. the problem is that if i put the data into a string buffer and call replace it will not change the data in the file but i need that to hapen and the … |
| | Hi all I am enrolled in abeginners class and am having problems with methods. I keep getting a .class expected and do not know how to fix this. It is at this line that the message appears `total = Circle.area(int radius);`. import javax.swing.JOptionPane; public class Circle { public static void … |
| | Ok, using Jgrasp I was given a problem that asked me to design a GUI program to find the weighted average of four test scores. The four test scores and their respective weights are give in the following format....testscore1 weight1 This is what I have so far, the code will … |
| | Ok, so i am quite new to JSP. Working on a big database project, and I'm left scratching my head here. The ugly code below calls the chemical name and chemical id properly, and links the chemical name to a page where the chemical with that id will be viewed, … |
| | This is a school project. I need to read jokes from multiple files and show them in separate threads. It complies but I keep getting IndexOutOfBoundsExceptions. Any tips or help you can give would be greatly appreciated. [code] import javax.swing.*; import java.awt.*; import java.io.File; import java.io.*; import java.io.FileNotFoundException; import java.awt.event.*; … |
| | so my assignment is: For this assignment, your job is to create a program that reads in multiple lines of text, and then produces the translation of that text into the English language variant known as "pig latin". Pig latin works this way: if a word begins with a vowel … |
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