Software Development Forum

Java error- java:12: class, interface, or enum expected? class ProgrammingProject01 { public static void main(String blabla[]) { System.out.println("Hello"); World world1 = new World(); Turtle turtle1 = new Turtle(world1); } } public void drawN1() { this.penUp(); this.moveTo(50,50); this.penDown(); this.setPenWidth(5); this.setColor(new java.awt.Color(255, 0, 0)); this.turn(180); this.forward(50); this.turn(180); this.forward(50); this.setColor(new java.awt.Color(255, 200, 0)); …

This is a plate, requirement for our semifinals. Enhance the addInterest method of the SavingsAccount class to compute the interest on the minimum balance since the last call to addInterest. Hint: You need to modify the withdraw method as well, and you need to add an instance field to remember …

[CODE] public: Mixed(int whole = 0); Mixed(int whole, int num, int denom); bool SetFraction(int n, int d); bool SetFraction(int n, int d=1); bool SetValue(int w, int n, int d); int getWhole(); int getNumerator(); int getDenominator(); void showFraction(); double Evaluate(); void Simplify(); void ToFraction(); Mixed& operator++(); //prefix increment Mixed operator++(int); //postfix …

Hi all, I'm working on a project for my CS class to go a little above and beyond the requirements. I have a simple GUI that takes in a username and password and checks a few things (needs uppercase and digit, etc), but I'm trying to have a JLabel that …

[CODE] class Circle { private double radius; private String colour; Circle() { } Circle(double r, String c) { this.radius=r; this.colour=c; } public void display() { System.out.println("Radius of circle is "+this.radius); System.out.println("Colour of circle is "+this.colour); } public String getColour() { return (this.colour); } } [/CODE] how calculate and display the …

I am trying to parse an html file. But unable to remove spaces using \s (matching character for whitespace) [CODE]use strict; use warnings; open(FILE,"<paragraph.txt")|| die "Can't open para.txt"; my @file = <FILE>; my $all = join("",@file); $all =~ s/\n/ /g; $all =~ s/\./\. /g; $all =~ s/\s\s*/ /g; open (FIL,">paraone.txt")||die …

See I created a program that accepts three values from the user to be arranged as a linked list(ascending order). After it asks a number, it displays the content of the list. The output is like this: [CODE]Enter number: 6 List value: 6 Enter number: 4 List value: 4 6 …

I have put together some code for a homework assignment and I have almost got it working. There are a few key items that are missing or not fully functional and I am fresh out of ideas on how to attack it. The code is to take 9 digits/integers from …

My first gui application is working fine. Fine, that is until the user forgets to select the output directory. I have set up an error message that, when clicked, directs the script to the open directory dialog. This works but I would prefer the user selected the open directory option …

Can anyone help me by giving out a complete tutorial on the step by step way a connecting to a database using C++ ?

Hi folks, I'm having a doubt. I write a letter in notepad and i saved it as 'letter.txt'. Then i realized that i forgot to say one matter in that letter. So i opened 'letter.txt' using any text editor such as notepad, wordpad or something. Now i inserted the letters …

Hello all . I have just started using the gcnew instead of new for the public ref class, that i have needed to learn for windows forms. I have a problem that shouldn't be as difficult as it is. I have a class that i made called vector2 . It …

Hey guys Hello, I am new a programmer. I am learning C, C++ and C#. But in future I am planning to make some serious applications using C#. Those applications would be based on LAN environment. So which books should I start to read for network programming using C and …

Hello, can anyone explain me why I'm still one step behind with this code? [CODE]private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) { try { DefaultTableModel model=(DefaultTableModel)jTable1.getModel(); model.setNumRows(0); String Name=jTextField1.getText(); String sql= "SELECT * FROM APP.Workers WHERE First_Name LIKE'" +Name+ "%'"; rs= stmt.executeQuery(sql); while (rs.next()) { String d1=(rs.getString("First_Name")); String d2=(rs.getString("Last_Name")); String d3=(rs.getString("Job_Title")); String d4=(Integer.toString(rs.getInt("ID"))); …

I currently have the following bits of code: [CODE=VB.NET]Public Class MainFrm Private _storage As New List(Of StopwatchStorage) Public TotalParticipants As Integer Private participantLbl As Label Public participantName As TextBox Private participantClock As Label Private participantContinuation As New Stopwatch Public ParticipantStop As Button Private participantContinue As Button Private participantTimer As Timer …

how to write code include a try-catch statement to handle exception of this code. In the catch() statement, will provide a proper alert to the user on the error occurred. [CODE] import java.io.*; import javax.swing.JOptionPane; class TestArray { public static void main (String []args) { double a; double w; double …

I have problem when itegrate my webcam with JMF. I have got this following error, when i running JMFINIT or running jmfregistry and detect capture device. [CODE] Trying 6 352 288 Trying 6 768 576 Trying 7 160 120 Trying 7 320 240 Trying 7 640 480 Trying 7 176 …

Hi i have the following code. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim con As New OleDbConnection Dim da As New OleDbDataAdapter Dim ds As New DataSet Dim dsnewrow As DataRow Dim cb As New OleDbCommandBuilder(da) Dim a As String con.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=F:\DB.mdb;Jet …

Hey I would like to do a ".bat' type of command in C#: Something automated. Im trying to run a program that is sort of shell itself so it just need to input certain words/letters into the command line box. Lets see if I can explain it better with a …

Hey! I got a Java Project which runs fine when i call the Main class with the java command. Made it into a -jar file with: jar cmfv manifest kort.jar * the manifest file contains [code] Main-Class: src.KortBord [/code] with the line break at the end when i try to: …

ok, i need help with changing the state of a process. So far my struct Process has an integer which contains the priority and a pointer next which points to another process, and i need to add a state so that every time i call the function insert() it would …

Hi everyone, I'm now nearly finished with my project which tells us to write a PASCAL program for entering the information of the employees. However, I came across a BIG problem is that I've got no idea on how to edit records in the text files or delete unwanted data …

hi everybody! i already know how to save in excel using openfiledialog. but what i want to happen is that when i save another file, i want it to be saved in my existing file but in a different sheet. can you guys help me? this is my code for …

Hello, I'm need to create a small report to be send automaticliy from VB.NET Windows application. I have wrote below code which is workin on my private PC, and with Gmail settings, such as username + password + smtp.gmail.com, etc... But with, my work informations, like my proxy ID + …

Hi Guys, Can you have any idea about randomly shuffle the questions in database without affecting questions id. Let i will explain little bit more ...... read carefully 1) I have a table containing 5 questions like this que_id que 1 abc 2 bcd 3 efg 4 hij 5 klm …

how to allow the user to select different pen thickness for the lines, eg. triangle, circle, square?

#include<stdio.h> int ways(int n,int m) { if(n=0) return m; if(m=0) return n; else ways(n,m)=ways(n-1,m)+ways(n,m-1); //there is an error here.pls explain// return ways(n,m); } int main() { int a,b; printf("give a and b"); scanf("%d %d",&a,&b); ways(a,b); printf("the no of ways from (%d,%d) to (0,0) are %d",a,b,ways(a,b)); return 0; } what is …

Hi all, I need my form to automatically select the first entry in the datagrid view when it is loaded. I am having trouble finding the correct way to code it. [CODE] Private Sub CustomersForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim cust = From customers In …

Hi guys, i used the query for randomly selecting questions from access but it will give me same result, i try it by passing different different values also passing time in rnd fuction but i will display same result. [CODE] DataSet ds = new DataSet(); string strsel = "select * …

1. I did try without trying to read output or trying to read only first line of the output - both of these were successful. 2. However when I try to display full output, it just gets stuck and does nothing. 3. Even more crazy stuff - when I close …

In this string "13 12", I like to find if there is an occurrence of '3', but I am not interested in char '3' which is part of "13". In other word I am looking for number 3 not 13. By using the following code in python I always get …

I have difficulty to declare the following type of array. 1/36, (one divided 36) 2/36, (two dvided 36) 3/36, 4/36, 5/36, 6/36, 5/36, 4/36, 3/36, 2/36, 1/36 [CODE]double exptRoll [arraySize] = { 1/36, 2/36, 3/36, 4/36, 5/36, 6/36, 5/36, 4/36, 3/36, 2/36, 1/36}; [/CODE] This doesn't work. Can someone tell …

Hello Once again i need help. I have a webbrowser So once webbrowser is completed then it should add the specified value in [TEX]<input type="file"> [/TEX] value in php. Eg: Webbrowser link is [url]http://tinypic.com/[/url] When webbrowser is completed then this [url]http://screensnapr.com/e/LCgzhP.png[/url] value will be our specified value. I tried using …

How can I set the [U]Actual rolls[/U] and [U]Expected rolls[/U] to no decimal, and [U]Actual percentage[/U] and [U]Expected percentage[/U] to 1 decimal plus a % symbol ? [url]http://images.plurk.com/a2f077138ef908ce71f46b08909c998d.jpg[/url] [CODE] cout << "Point" << setw(17) << "Number of Rolls" << setw(17) << "Actual Percent" << setw(17) << "Expected Rolls" << setw(17) …

Hi, I have seen in couple of places the code where ToString() method has been overriden. Like : class Employee : IComparable<Employee> { public int Salary { get; set; } public string Name { get; set; } public int CompareTo(Employee other) { if (this.Salary == other.Salary) { return this.Name.CompareTo(other.Name); } …

I need advice. I'm writing a calculator; I've got the basic functionality of it down, and have finally moved to having it process functions. In this regard, I find the standard library of mathematical functions provided by Python unsatisfactory. While the more commonly used functions are defined, some of the …

Hi, I created an XML file that will hold the latest news and stories, and trying to display it now in my HTML file using Javscript (I scrapped XSLT, as it altered the CSS styling and alignments compared to the other pages and couldn't work my way around that). So, …

ok so im making this console app in which I have to allow the user to enter any number of values then display orignal value , and then the percentage of the original value to the total. [B]My question is how do I initialize my memory locations correctly for a …

Hi and Greetings, I am new to these forums, so if I submitted this to the wrong forum, my apologies. Before I get to my question, a little backstory. I was running an application on my laptop that was using Microsoft Vista, with Microsoft Office 32 bit and JRE 1.5. …

I'm fairly new to java and need help. I need to show time required to travel somewhere by having the user input Speed and Distance traveled. And the outcome be a floating point value. lets say they put in 60 mph and 148 miles I Can't seem to get the …

Hello, newbie here to both this forum and Python, so expect silliness! My first project has been to build a GUI front end for some command line utilities I use regularly. One of them is the utility: eac3to which joins mp3 files together. It's command line is: "eac3to.exe infile1+infile2+infile3 outfile" …

Assignment 2-a: Program 1: You are given the task of determining the download speed of an Internet connection. You decide to use two files whose size is known (in Kilobytes-KB). You will download the two different files, and record the time it takes to download each one. You will determine …

Hi, I have a Java Final exam after few days. And I am looking for some website that contains [B]SOLVED [/B]programming exercises. Can anyone give me at least one site? Note: what I mean by [B]SOLVED [/B]is that I want the exercises to have solutions with them because I want …

I am looking to encrypt data (preferably XTEA) on my .Net Micro Framework, send it to a webservice in .Net (Azure) and decrypt it there. I found this [URL="http://www.dmcinfo.com/Blog/articleType/ArticleView/articleId/83/Encryption-Compatibility-Between-NET-Micro-Framework-and-the-Full-NET-Framework.aspx"]blog post[/URL] but I am unable to get it to work. The encryption result on .Net differs from the .NetMF. I hope …

I can't seem to figure out how to separate the code I wrote into 3 separate methods. 1. The main method, 2. the method that creates the strings i need and sends em back to the main method, 3. and the method that displays the if statement. [CODE]import java.io.*; import …

I'm making a dice program that calculates the statistics such as actual percentage, expected rolls and expected percentage and so on. I'm having a difficulty on the Pseudo random number generation. With two dice, the mim. sum of the dice is 2, not 1. There is something wrong with my …

Alright so basically i need to create a simple maths game in C. Involving addition subtraction and multiplication of random numbers. But i also need to add a timer to that. So lets say you are given 10 seconds to answer the question and every correct answer adds you 10 …

I was working on a project when I thought that maybe a ::. operator would look funny in some code. Just for fun I typed that into the global scope area like this: [CODE]::. int main() { //etc...[/CODE] and my code completion software said too many results to display. My …

i have a given picture and have to create a picture that is twice as wide as the given picture. For each pixel (x, y) in the original picture, the pixels (2 * x, y) and (2 * x + 1, y) in the new picture should be set to …

Hi I'm trying to read in actors from a file that I got off IMDB and I wanted it to be searchable to whenever the user enters an actors name, the program would output the movies the actor has starred or been associated with. I've gotten the search function to …