2,055 Topics
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| | Hi Everyone, I am trying to get the program below to work correctly. The line below is where I'm having trouble. (line 33 in PrefixCalc.java) calc = new ExpressionTree(new Scanner(console.nextLine())); When I run the program and enter "4 + 8", the scanner only picks up "4". Apparently this program was …  |
| | Hy All I run a PPD website, so the members have to complete a survey before they can download a file. But after the survey they got this error, please see the pics. http://filemonster.org/images/97f448bf6398174f45e04ffc8ac964bb.png I didnt edit anything and check the file structure and didnt see any bad coding. I … |
| | Hello Everyone, How can I save the field id/name on a variable, once an user clicks on it, so that later I can use that variable as a parameter to retrieve data from the database? In the code below, you can see that I am selecting information from 'ac' in … |
 | Hi I wonder if somthing wrong with this script? I get this resuly in my linux ./accessdll.py : No such file or directory #!/usr/bin/env python from subprocess import Popen, PIPE from re import split from sys import stdout class Proc(object): ''' Data structure for a processes . The class properties … |
| | hye guyz, Can any one tell me that what the data structure is used behind FACEBOOK ??? I have googled but not found any useful answer... plzz tell me quickly..  |
 | i wrote a code to implement some basics of priority queue , but apparantly its not giving desired output. the code is implemented using binary heap as its data structure. i tried tinkering here and there , nut no luck... i want to display a given number of max or … |
| | Hello Everyone, I am having a problem trying to display two graphs and a data grid. I am able to display both graphs and the grid in individual files, but when combining both the graphs display and the grid becomes hidden. I checked some posts online, and it seems to … |
| | write a menu driven program to create a linked list, insert an item, delete an item, and display the list of items. the program should contain a class with the required data and functions. #include <conio.h> #include <stdio.h> #include <stdlib.h> //Structure containing a Data part & a //Link part to …  |
 | FireEye security researchers are warning that they have [detected a new zero-day vulnerability](http://blog.fireeye.com/research/2013/02/yaj0-yet-another-java-zero-day-2.html) that is being used successfully in the wild against browser clients with both Java 6u41 and Java 7u15 installed. Given that the Java 7 update was only released a couple of weeks ago, this is yet more …  |
| | I have to write a program that creates a binary search tree from a file and output it and several other requirements. One requirement that I cannot figure out is how to find the search cost for each node. These are the instructions I was given Calculate the search cost …  |
 | I am doing huffman coding and I have made the tree. Now I am required to traverse the tree to create bit strings associated with the characters. Then I will put the bit string and char into a map to use with encode/decode. I have been working on this for … |
| | Hi Guys, I am working on a binary search tree and I've been stuck on some code for the last couple of days. There are 2 issues that I can't seem to figure out how to fix. 1) I have a file that has a list of names and ID's … |
 | Hey I have a program in retrieving data from a HTML page with Javascript using Java. Lets say I have the structure of C:/index.html C:/js/script.js index.html contains: [code] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <script type="text/javascript" src="js/script.js"></script> </head> <body> <a href="javascript:void(0);" id="add"><img src="images/menunew.png" alt="plus" border="0" /></a> … |
| | using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Xml; using System.IO; namespace Enrolement { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { /* This part of my code imports the … |
 | Hey guys, I have a silly issue that is bothering me. I am trying to read an unknown amount of lines from an input file and basically stop when I reach the EOF. I probably does'nt matter but the assignment is to create a simple lexical analyzer/scanner for a mini-subset … |
| | #include "LVdefs.h" struct konfigDatei { char tableName[50]; char columnName[128]; char primary1[50]; char primary2[50]; char primary3[50]; char primary4[50]; char primary5[50]; char primary6[50]; }; main( int argc, char * argv[] ) { int loop = 0; int count = 0; struct konfigDatei kd[50]; char line[500]; char *ch; FILE *f = NULL; f … |
| | i have to create a queue where the dequeue operations will be random. that is , a random location will be chosen, and deleted after returning the data stored at that location. i was going through the two underlying datastructures that im allowed to use **:** linked list , and … |
 | I'm designing a embedded system and we have to oftenly report system fault in different code module. So I decided to create a source file to keep the error log and I'm building a struct for that. So that, every module reporting the error log and store in a data …  |
| | class BTNode(object): """A node in a binary tree.""" def __init__(self, item, left=None, right=None): """(BTNode, object, BTNode, BTNode) -> NoneType Initialize this node to store item and have children left and right, as well as depth 0. """ self.item = item self.left = left self.right = right self.depth = 0 # …  |
| | I am having an issue implementing the Breadth First Search, Im trying to find the shortest distance between the source city and the destination city. Here is what I have so far, Im stuck and dont know what to do about this issue. #include <iostream> #include <string> #include <fstream> #include … |
| | Hey guys, can anyone tell me how I could use randomaccessfile to read in a txt file and copy the content to a tree? Also how to then do the opposite and write newly changed nodes from the tree onto the text file? It's pretty much like creating a save … |
| | I am trying to read a structure from a .dat file...the first integer to be read is the no of readings, then there is the data in following structure format struct Oven { int rec_no; int temp; int status; char string[10]; }; below is the method through which I read … |
| | Quick question. I'm studying for my CCNA and my supervisor gave me this challenge question. You're given 5x Cisco 3560's and 5x Cisco 3750's which are to be installed side-by-side on a rack. Which model would you choose to avoid issues with STP? I'm currently skimming over [this](http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/data_sheet_c78-584733.pdf). Thanks!! |
 | I have created movie database. I have list of **Genres,** <ul> <li><a href="movielist.php?id=<?php echo"$id";?>"><?php echo"$genre";?></a></li> </ul> In **table movies**, movie have multiple geners. How to fetch same movie if multiple geners available (e.g. The Expendables 2 appear in **Action | Adventure | Thriller** these three geners). **How to display movie … |
 | Hello Friends, First of let me clear you that it not a fake blog.This blog is created for the students of computer field and sharing the programming concept to the people of IT.From this you will be connected with latest technology and programming questions with answer.Friends this just an beginning … |
| | I got a java test done and somehow my answer for this question is incorrect, can you guys help me explain it? So the question is: in a binary tree with height 3 the least deep leaf has depth 2 (Root has depth 0). a)Max numbers of nodes this tree … |
| | Hi! Lets say i have this expression I10I20I-3++ which should give me 27. I just cant seem to find a way of removing those I's or if it is any other letter from the string. Not forgetting i have to then evaluate the expression. I tried using regex but no … |
| | Hi guys, I'm hoping you can help here with a problem I am having with regards to filling a Dataset. It was working fine but have had to amend the code to read a different data set and structure. Basics are 2 tables.. one customers, 1 orders. Joined on there … |
| | So I have always developed in a 32 bit environment, but now have the opportunity to step into 64 bit development. What I am working on requires a lot of pointer aritmatic, and I am a little confused how primitive data type sizes vary from 32 to a 64bit platform. … |
| | Hi, I am facing difficulty in removing a node from linked list. For example I am having four nodes having integers (10) (20) (30) (40). I need to remove second Node that is 20 from linked list. What i was trying to do is I am maintaining two pointers to … |
 | I'm a sybca student. and till nw i kw c,c++,RDBMS,D2K,data structure. can i able to develop a software using this skills? if yes then plz tell me the steps for that. thank u!  |
| | Hi All, I have a binary search tree (consider following structure). struct bst { void *value; struct bst *left, *right; }; I want to save this unbalanced binary search tree in a file. And when I read this file, I don't want to recreate the tree from these nodes. So … |
 | i tried reverse engineering option in Mysql workbend 5.1, 1stly i imprted DB's script and then created it, Its done :) but when i try to create ERD via Reverse Engineering option , then it doesn't show relations ships btw tbl, it only brings table to front ! why ? … |
| | I want to create binary tree. With this program I wrote I have some problems. It seems the element I added to the tree is always added to the root place! Adding never happens to the left or the right subtree. This thing is prooved by result I always get … |
 | I inherited a website here at work. The menu system uses a convoluted jquery / javascript structure. There are 8 different types of "users" for this website, from administrator to contractor or accountant, etc, and the person made 8 different versions of the menus covering nearly 80 different pages within … |
| | I successfully created a C++ window but got an error message when I tried to add menus. I will surely appreciate any help to fix the issue. As follows is the code: #include <windows.h> /* Declare Windows procedure */ LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); /* Make the class … |
| | I need to send multiple request (command) to server at port 55005. My first request get process successfully & I received out put also. But for second request it gives error (WSAESHUTDOWN - Error 10058). After first requets I call shutdown(ConnectSocket, SD_SEND); Then only server process the first request & … |
 | Hi people. I have a remove function that should set a hide member of a node to 1 instead of actually remove the node. The function works well when I insert and remove top and tap respectively (both nodes have their hide member set to 1) but when I insert … |
| | Hi everyone. I'm tying to understand the instruction below. I wish someone could explain me what it means: tree->destroy(((AvlNode*)(*position)->data)->data); // destroy the left branch of the binary search tree starting from the specified node static void destroy_left(BisTree* tree, BiTreeNode* node) { BiTreeNode **position; // can't remove from an empty tree …  |
| | I'm trying to expedite the process of manually opening up an XML file and searching for some info in it. I want to store some of the data, etc. Nothing elaborate. But I'm not clear on some of the file structure. For the seasoned XML data wrangler, can you instantly … |
| | Hi guys. I want to write a keylogger which logs all strings I copy via <CTRL>+<C> My problem is that I loose track of interessting links or code-snippets when overdoing it. So I want a basic keylogger which notices every hotkey event and copies the content in the clipboard into … |
| | Hi everyone, Let me first explain the idea: I have a JSON document which has the following structure: { "timeline": { "headline":"Example Content", "type":"default", "text":"Example Content", "startDate":"2013,1,1", "endDate":"2013,1,28", "date": [ { "startDate":"2013,1,10", "headline":"Example Content", "text":"Example Content", "asset": { "media":"Example Content", "credit":"", "caption":"" } }, { "startDate":"2013,1,14", "headline":"Example Content", "text":"Example Content", …  |
| | Hello everybody. Here is my remove method for bst. As you all know, there are 3 cases to consider while removing a node from bst. For the last case, when a node (which is to be removed) has 2 children, I want to use predecessor instead of successor to change … |
| | I am looking for a way to impliment an onScroll listener into my listview. I have read a lot about using: notifyDataSetChanged(); But, I honestly can't figure out how to impliment it into my working code. Currently, I pull a bunch of records into the listview from a MySQL database … |
 | i have the following php script. the databtase table i'm saving the data to allows NULL values for the email. this is the table structure. ` CREATE TABLE tblcontacts ( contactID INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, contactName VARCHAR( 50 ) NOT NULL, phoneNumber VARCHAR( 20 ) UNIQUE NOT … |
 | Hi everyone, we were taught about Generics and Interfaces at uni and I wasn't sure what the perfect situations are to use interfaces because they don't have implementation in them so they work as a contract to other classes where everyone can implement their methods as long as they extend … |
| | Hello, I have just completed a rather large project which involved data that was less than optimal html wise. Our biggest problem currently is that we have a structure like this: <ul id="postblockinfo"> <li>List One</li> <li>List Two</li> <li>List Three</li> <li>List Four</li> <li>List Five</li> </ul> Text that is suppose to be … |
 | Traceback (most recent call last): File "C:/python files/USACO/crazy/crazy.py", line 87, in <module> grid.plot(x,y,"F") File "C:/python files/USACO/crazy\grid.py", line 63, in plot self.g[(x,y)] = replace TypeError: unhashable type: 'list' You see, I'm hashing a string with the key bing a tuple. This is using my own 2d grid data structure. |
 | #include<iostream> #include<algorithm> using namespace std; #define MAX 10000000 #include<stdlib.h> #include<string.h> char s[MAX]; int p[MAX]; int bucket[MAX],nbucket[MAX]; struct suffix { int idx; }pos[MAX]; int H=0; bool cmp(struct suffix i,struct suffix j) { if(H==0) { return s[i.idx]<s[j.idx]; } else { if(bucket[i.idx]==bucket[j.idx]) { return bucket[i.idx+H]<bucket[j.idx+H]; } else { return bucket[i.idx]<bucket[j.idx]; } } } … |
 | Here is my splay function: template <class WA> void SplayTree<WA>::Do_Splay(SplayNODE<WA> *temp) //temp is the node which is to be splayed { if (temp==root) //if temp is root then { return; } //Do Nothing else if (root->left==temp || root->right==temp) //else if temp is a child of root { if (root->left==temp) //if … |
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