36,051 Topics
 | |
| | I made a json file and its contents are like these. [{"pdis": "pdistance", "time": "time", "lon": "longitude", "tdis": "totaldistance", "secsp": "sectionspray", "lat": "latitude"}, {"pdis": "0.000555", "time": "10:01:43", "lon": "126.952741667", "tdis": "0.000555", "secsp": "3343.0", "lat": "37.4805016667"}, {"pdis": "0.027396", "time": "10:01:57", "lon": "126.952753333", "tdis": "0.027951", "secsp": "3320.0", "lat": "37.4807483333"},~~~,{"~~~~~"}] I want to … |
| | Hi All, How can i get the swing/awt open and save dialog boxes while accessing from the client side ???  |
| | My object: Take latitude, longitude columns from textfile(.txt) and mark them on googlemap api v3. For the first step, I made a code for reading textfile by javascript and html. When I run this code, chrome and IE browser open well but nothing happened. javascript part don't work. How can …  |
 | I'm creating an application that with continuously attempt to run a list of programs until they are open. I'm having an issue when it comes to programs that require administrative priveleges however. I've done some searching and found the below script (in createElevationScript()) that *should* run a program with administrative … |
| | Hi all , i want to cast the output of fuzzy logic algorithm into any another type (float , int ,double..), i tried this with usual methods but there is no change.. This is the complete java code public static void main(String[] args)throws Exception { String filename = "output.fcl"; FIS … |
| | i cannot find a reliable source online that explains the proper syntax and my instructor's help is negligible. Please any insight is greatly appreciated. This is my last study guide question for my final later today! the problem is identified with arrows below. i was provided source code to a … |
| | Please assist me to create an instant messaging using java programming. |
 | Hey, I have been reading Java oracle tutorials. I read this thing. Suppose, for example, class MsLunch has two instance fields, c1 and c2, that are never used together. All updates of these fields must be synchronized, but there's no reason to prevent an update of c1 from being interleaved … |
| | Hi, I have been working in Java for more than 8-9 months now. I want to have deep understanding of Java concepts now. For ex: Collections properties, threading, interfaces detailed concepts etc. I mean I have been using all these things for a while now but want to know about … |
 | Hello, I need to extract a particular value from this html snippet. As i would not like to use any external libraries the only way to achieve this using core java is using regular expressions. As i have never used regular expressions it would be great if you could suggest … |
| | part of my program includes my boolean 2d array: `boolean[][] matrix = new boolean[V][V];`i want to iterate through the vertex and check if it is true but am getting error: cannot convert from boolean[] to boolean. casting `(boolean)` does not help. i have also tried `boolean[v][w] == true`. here is … |
| | I have some java code which calls an asynchronous REST API to finish a task that takes a while to complete, this call returns a task ID. We would need to use the task ID and trigger another REST call to retrieve the task completion status. Please suggest the best … |
| | How can i to return the difference between two collections in java? i have to collections that contains points and complexs . point z=new point (1,2); complex x=new complex(4,5); point f=new complex(5,2); point h=new point(7,8); point k=new point (9,2); Set a=new Set (5); a.add(z); a.add(x); a.add(f); a.add(h); a.add(k); Set b=new … |
| | <!DOCTYPE html> <html> <body> <script type="text/javascript"> var images = ["strawberry.jpg", "apple.jpg", "cherry.jpg", "orange.jpg", "pear.jpg"]; var length = images.length; var randImg1 = Math.round(Math.random() * (length - 1)); document.write('<img src="' + images[randImg1] + '" >'); var randImg2 = Math.round(Math.random() * (length - 1)); document.write('<img src="' + images[randImg2] + '" >'); var randImg3 …  |
| | The followign is my XML <?xml version="1.0"?> <catalog> <book id="bk101"> <author>Gambardella, Matthew</author> <title>XML Developer's Guide</title> <genre>Computer</genre> <price>44.95</price> <publish_date>2000-10-01</publish_date> <description>An in-depth look at creating applications with XML.</description> <add>yes</add> </book> <book id="bk102"> <author>Ralls, Kim</author> <title>Midnight Rain</title> <genre>Fantasy</genre> <price>5.95</price> <publish_date>2000-12-16</publish_date> <description>A former architect battles corporate zombies, an evil sorceress, and her own childhood … |
 | I want to develop a simple java application which will take the java code input in a text area and find if there are memory leaks in it or not? Do i have to make a compiler construction code over it? or it can be done simply? Can someone guide … |
| | Hi all, How can I compare between 2 strings , contain some words are same in each other and extracting the same word only ,,these 2 strings not contain spaces. For example: String1="catdogfish"; String2="dogfishmonky"; So, the result I want to get from compare them is "dogfish". Is there any way … |
| | My program was working fine until i introduced the if statement, without this "if" there are (java.lang.NullPointerException) errors . What shall i do? Thank you in advance . Here is the necessary part of code for you: Connection c ; Statement stmt =null ; if (c != null) { try … |
| | Hi, I needed some help with fixing my code. So basically what I am trying to implement is the following: I have 2 radio button (hours and minutes) and under each is a JTextField for each radio button. On the right side there is 2 buttons (+ and -) that … |
| | Hi team, In hibernate one to many relation ship am updating parent setting with child data when am doing session.update(parent) (parent have set with child data) then am committing the its throwing exception saying that Caused by: java.sql.SQLException: ORA-01407: cannot update ("TPIA"."TPIA_TRANSACTION_DATA"."TRX_ID") to NULL.so please help will get appriciate. |
| | I was wondering how you would make a grid in a javascript canvas, a 10 pixel by 10 pixel grid for a game I am making thank you for your response.  |
| | Hello, so here is the program that I am trying to create: write a program to read a collection of exam scores, ranging in value from 0 to 100, until a sentinel of -1 should display the numer of outstanding scores (90-100), the number of satisfactory scores (60-89), and the … |
| | Guys I recently discovered that char array can also be printed in java without for loop and the output is a string.But when i tried the same for int array, I got some gibberish value which i though to be memory address pointed by array as it contains reference to … |
| | I am doing a simple program to calculate the first 15 fibonacci numbers and also placing an asterisk next to even numbers. My output should look like this: 1 1 2* 3 5 8* 13 21* 34* 55 89 144* 233 377 610* I can calculate the numbers easily enough … |
| | I am having trouble implementing a solution using a binary search tree that returns the key of the node based on it's rank in O(N) worst case running time. Every idea i have (listed below) results in O(N^2) or sends me to a dead end. This almost seems impossible. i … |
| | i have created a recursive method that returns the size of a binary search tree, i would like to analyze the running time of my implementation but i dont know how. I know the best case is O(1) if node is null but what about worst case? my researches online … |
| | Hi i have a shell script named script .sh that create maven project having parent pom and multiple modules under it as follows: #!/bin/bash mvn archetype:generate -DgroupId="com.low.co" -DartifactId="tool-release" -DarchetypeGroupId=org.codehaus.mojo.archetypes -DarchetypeArtifactId=pom-root -DarchetypeVersion=RELEASE cd yeti-release mvn archetype:generate -DgroupId="com.low.cp" -DartifactId="tool-api" -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=RELEASE mvn archetype:generate -DgroupId="com.low.cp" -DartifactId="tool-impl" -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=RELEASE mvn archetype:generate -DgroupId="com.low.cp" … |
| | I am new to coding and im having trouble with arrays in javascript. I want to be able to compare stuff inside an array but only if the three values match up to one of the sets of three values in the array var array = [[1,2,3][4,5,6][3,6,7]] if(array.indexOf([1,2,3]) === 1){ …  |
| | Hi all, Actually, this question is not related to some coding or logic from my project. But, as I am doing hard and harder projects (acc. to me & my exp.), I am focussing more on design part of my projects. When I present my design to team members for … |
| | Hi guys, I am a computer science major and I have been asked to complete a task for someone working in the school of public health at my university. Basically I have to go to this website: ///////////////////////////////////////////////////////////////////////////// [Click Here](https://www.healthcare.gov/find-premium-estimates/#results/&aud=indv&type=med&state=PA&county=Allegheny&age0=35&employerCoverage=no&householdSize=1&income=100000) ///////////////////////////////////////////////////////////////////////////// and gather all the information which displays after the … |
| | you must to clear the history (inside the netbeans), and restart the project, |
 | Hi Experts, I want to export html table to .csv file, my code is working but i want to export it with border or background color on its header. how will i do that? Please help me. Thanks in advance. :) Here's my code: HTML Table: <div id="feedback_div" style="display: none;"> … |
| | see why is is not working its not taking combo name why |
| | Hi. Im trying this java program that's suppose to register the "staff"'s "car" and there's this boolean method that I don't know how to solve. There are 3 classes: Tester, Staff and Car. the boolean part is suppose to check if the staff has 1 or 2 cars registered and … |
| | Hi. I have these exercises to do, to write the output of some coding given. I can compile it in eclipse but doesn't mean i understand. can someone please explain this code to me. thank you. int[] arrayA = new int[3]; //this part i know, create array size 3 int[] … |
 | I have been trying two save data into mysql database using hibernate but it have been giving me an error. Could someone give a solution to this. Following is the servlet code and hibernate configuration servlet package ac.ke.schoolsystem.controllers; import java.io.IOException; import java.util.ArrayList; import javax.servlet.RequestDispatcher; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; … |
| | when i save my object in hibernate session.save(obj) getting this exception. (SqlExceptionHelper.java:127) SQL Error: 1747, SQLState: 42000 (SqlExceptionHelper.java:129) ORA-01747: invalid user.table.column, table.column, or column specification (AbstractBatchImpl.java:193) HHH000010: On release of batch it still contained JDBC statements (SessionImpl.java:2994) HHH000346: Error during managed flush [could not execute statement]  |
| | Hi there, I have a class definition like : class Student{ String name; int sub1; int sub2; int sub3; //... } I have list of all students. I want to get count, average, min, max etc using IntSummaryStatistics. Below is the code for sub1: IntSummaryStatistics sub1Summary = students.stream().collect(Collectors.summarizingInt(s -> s.sub1)); … |
| | how to interact in multiple modules, can anyone suggest any link or tutorial  |
| | Another common statistical measure is the standard deviation, which provides an indication of how the indivdual values in the distribution differ from the mean. to calculate the standard dev. whose element are x1, x2.....xn you need to perform the ff steps a. calculate the mean of the distribution b. go … |
| | Hello, I have no experience experience with Java programming and I spend more time lost than anything. I have made an attempt at my week's assignment but I am stuck. Here is the run down of my assignment for that week **"Write a Java application using an Integrated Development Environment … |
| | hey ,i am new to the site as java bluej , i have drawn a flag using bluej using many objects like circle and rectangle ... i wanna combine the objects into one to move it together , what should i do ? the code source: /** * This class … |
 | Hi guys, I wonder if you can help me at all. As some of you will know I do a bit of java development here and there but unfortunately I don't really have any programming background, like, I haven't studied computer science - I just learned (well, that's an overstatement) … |
| | Hey guys, I want to ask which captcha service is a better? im using right now DBC, but it is not so good, can someone recommend better service for recaptchas 4x4? Thanks  |
| | I'm getting my ArrayList from a service and populate my ListView with it when user creates the widget. I have 3 button on my widget and I want to modify/filter the data in the ListView by button click. I saw examples of pending indent but I couldn't reach my ArrayList … |
 | I am new to programming and I am trying to fix the Java code errors below and no matter what I do I cannot get it to compile and run. Would anyone mind helping me with this and explain what I am needing to do. Thank you. import java.util.Scanner; public … |
| | Greetings everyone, I'm still new to android programming and currently leanrning how to connect to DB. I'm following a online tutorial but I'm still facing problems. The tutorial is about creat a registration form and sending it to the database through volley. I'm using .hostinger.ae as host and Android studio. … |
| | Hi, I am creating a form in jsp. <form action="" method="post"> <input type="hidden" name="status_1" value="0" /> <input type="checkbox" id="status_1" name="status_1" value="1" /> <input type="hidden" name="status_2" value="0" /> <input type="checkbox" id="status_2" name="status_2" value="1" /> <input type="hidden" name="status_3" value="0" /> <input type="checkbox" id="status_3" name="status_3" value="1" /> <input type="submit" /> </form> I was … |
| | Hello there, I am writing a data structure and restricted not to use any API or collection. I have written a Sorted Linkedlist, which stores strings in ascending order. Basically I am writing a dictionary, which can be easier to implement by Map, HashMap or Dictionary provided by Collection API, …  |
| | Hi all; How can i ordering files in the package ,,,,java netbeans ordering files by name ,,, i want to move up or down to exganges positions of files in package.... i press click on it and move up or down but isn't work....!!! example: package filename: A.java B.java C.java … |
The End.