Which Collection Framework Class Will Delete Data
Jun 19, 2014I got a question , which collection framework class will delete data if we call "get".
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Populate Data In JSP Page - Collection Framework
Feb 20, 2015I have one table in DB i.e. emp. I want to perform all CRUD (insertion,selection,deletion,updation) in DB. Now i want to populate that data in jsp page. Which Collection framework?
View Replies View RelatedImplement HashMap Put And Get Methods Without Using Java Collection Framework?
Feb 11, 2014How to implement HashMap put and get methods without using Java Collection framework?
View Replies View RelatedJSP :: How To Delete And Insert Data Into Two Different Tables
Jun 2, 2014I am creating a portal using JSP and MySQL with eclipse IDE. I have a scenario where data is stored on draft table and is retrieved then stored on another table. I need the entry in the draft table to be deleted after the insertion. When I tried to run the code it redirects to success page but makes no impact on database(neither inserts not gets deleted).
<%@ page import="java.sql.*" %>
<%@ page import = "java.util.Date,java.text.SimpleDateFormat,java.text.ParseException"%>
<html>
<head>
<title>JSP Processing</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
[code]....
JSP :: How To Delete Previous Data After Refresh
Nov 6, 2014If I am refreshing JSP page the old data is remaining as it is with new data.what can be done to remove previous data from that JSP?
View Replies View RelatedHow To Cache Data Reading From Collection Of Text Files In A Directory Using TreeMap
May 4, 2015How can I Cache the data I'm reading from a collection of text files in a directory using a TreeMap? Currently my program reads the data from several text files in a directory and the saves that information in a text file called output.txt. I would like to cache this data in order to use it later. How can I do this using the TreeMap Class? These are the keys,values: TreeMap The data I'd like to Cache is (date from the file, time of the file, current time).
import java.io.*;
public class CacheData {
public static void main(String[] args) throws IOException {
String target_dir = "C:Files";
String output = "C:Filesoutput.txt";
File dir = new File(target_dir);
File[] files = dir.listFiles();
[Code] ....
How To Modify And Delete Data From Array List In Netbeans
May 22, 2014How to modify and delete data from a array list in net-beans?
View Replies View RelatedJSP :: Pass Collection Object From Tag Class
Apr 12, 2014I am not able to get the arraylist object on jsp. Below is my code.
public class DisplayArticle extends SimpleTagSupport
{
String path;
List<Article> articleList=new ArrayList<Article>();
public String getPath() {
return path;
[code]....
JSP :: How To Delete Data From Database Through Check Box Using Html Table On Page
Jan 22, 2014Problem code:
JSP 1:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@page import="java.sql.*;" %>
<%!Connection con;%>
<%!Statement stmt = null;%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[URL]...">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code]...
Home For Collection Of Objects Of Custom Class
Mar 31, 2015Where should I keep a collection of instances of my custom class? In the class itself in a static variable?
class Item {
int quantity;
static ArrayList<Item> list = new ArrayList<Item>();
Item(int q) {
quantity = q;
list.add(this);
}
// Some methods and whatnot.
}
Is it fine like this or should I implement the collection elsewhere? What say you?
Servlets :: URL Routing Without Using A Framework
Feb 18, 2015I am seen that ASP.NET apps have a handy feature called URL Routing. How will one implement this in Java without the use of heavy frameworks like Spring MVC ? How do you even begin writing a URL Router if there isn't anything available?
View Replies View RelatedServlets :: Which Framework To Choose
Aug 11, 2014I have good knowledge of servlet,jsp. I've also worked on mvc pattern and now looking to learn a web framework but i'm not sure which to choose between spring mvc OR struts.Should i first do struts and then go for spring or can i choose spring directly?
View Replies View RelatedServlets :: J2EE Without Particular Framework
Jul 24, 2014Is it possible to develop huge enterprise applications without any particular framework?
Just with JSP, Servlets and Javascript/Ajax stuffs?
Difference Between Multithreading With / Without Executor Framework
Mar 16, 2015Difference between multithreading with and without executor framework.
View Replies View RelatedConnecting Library And Swing Framework
Nov 8, 2014May I know what it means when you say "What is the OOP mechanism is used to link the library and the swing framework?"
What are the examples of OOP mechanisms? Is there a website explaining this in detail?
On Play Framework Connecting To Eclipse
Nov 6, 2014Question 1: Upon importing the Play Framework content in Eclipse there's a default codes as localhost:9000 is immediately routed to play framework website controllers, checked and running fine test, checked and running fine conf, checked and running fine the problem is the views under app on all youtube tutorials and other websites, the contents of views is editable but when my brother tried to, he cant edit it
Question 2: Is there an easy tutorial on POST, PUT, GET, and DELETE for eclipse-playframework
Question 3:my brother is using POSTMAN - RESTCLIENT to test his HTTP METHODS (post, put, get, and delete)and is there a tutorial where they also test the HTTP METHODS using POSTMAN?
Java Exception Handler Framework
Dec 30, 2014I have a Query, what is the exception handling framework used my project, but we actually did not use any framework ,we used just normal try catch and throws, so what is the exception handling framework, when I browsed through net I found something like JEHA, so is there any other framework available.
View Replies View RelatedJSP :: Would Template Based Framework Generates A Lot Of Request Traffic?
Nov 29, 2014If I have a web page with a lot of data to show, say a lot of tables and graphics, would using non JSP based frameworks result in a lot more individual AJAX requests? For example if the page have 5 tables, with JSP the whole page will be returned to the browser with data for all 5 tables already. But if this is a pure HTML / Javascript based view, then we need to have each of the 5 tables to make individual AJAX requests in order to render the page. Is this indeed the down side for not using JSP?
The reason I'm asking is because I'm considering moving away from JSP to a template based framework such as Thymeleaf or Freemarker.
Getting Objects Data In Class
Mar 7, 2015I have a class which connects with database and fills object with data. Method looks like this:
//in database class
void getData(anObject a, int id){
//connects with database
a.field1=get...
a.field2=get...
....
//disconnects
}
Now I want to use this method in anObject class, but I can't call it because I don't have created object jet. Is there any way to call this method?
Storing Data Of Particular Class In Files
Jul 29, 2014I need to store the data of a bunch of objects of a particular class in files in a predefined directory. Later, I want to get all the files from the directory and turn them into the objects again. Ideally, I'd like to have one file per object and have the files be human-readable and editable without too much difficulty. The class used by the objects will likely be subject to change in the future, as well. To keep things simple, all the data members are either primitives, Strings, or arrays of them. What is the best library/API to use to deal with this situation? Or should I write my own classes for these operations?
I read into serialization, but I read that it doesn't deal well with classes that are frequently modified. I also found articles on Preferences, but none of the ones I saw seem to explain how to best handle reading and writing to and from multiple objects, especially when I don't know a prior all the objects that were written to disk.
How To Access Objects Data From Another Class
Oct 3, 2014I've been unable to figure out how to access an objects data from another class. I ended up missing a lesson in java and haven't been able to catch up on this topic on my own through my textbook.
Error: has private access
Code:
public class TestCoffeeDrinker {
public static void main(String[] args) {
Coffee latte = new Coffee("Starbucks Tall Latte", 2.85);
Coffee mocha = new Coffee("Starbucks Grande Mocha", 3.95);
Coffee mcdonalds = new Coffee("McDonalds McCafe", 0.99);
System.out.println(mcdonalds.toString());
[Code]...
How To Use Data From Login Panel In Another Class
Aug 4, 2014I am getting data from user and checking it with database (MS SQL ) if it fits it is switching to new window. In new window I need to use again my database so I need to add connecting data again. I would like to get them from login window. How to do that? I know theory but when I am writing code nothing works. Here is working code for login panel :
/*import java.awt.BorderLayout;
import javax.swing.*;
public class Login extends JFrame {
[Code].....
Using Accessor Methods To Access Data From Another Class
May 6, 2014I have been asked to write a program with 3 classes(an interface, a store and a product class) and I have been going ok until I need to display data on the interface that is held in the product class. At the moment the code will compile fine but when I run the program and try to use the writeOutput() method I get a stack overflow error.
I realise now that it is because of a non-terminating recursive call, however I can not think of a solution on how to fix the problem. And just to clarify, what I am aiming to do is have the MatesTerminal class display the data for name that is stored in the Product class(I have no way of determining which product to display at this time, so I would like to be able to display the data for all three products if possible). Anyway this is what I have so far:
The method from the MatesTerminal Class:
private void writeOutput() {
int productChoice;
Scanner console = new Scanner(System.in);
[Code].....
Swing/AWT/SWT :: How To Use Data From Login Panel In Another Class
Aug 4, 2014I am getting datas from user and checking it with database (MS SQL ) if it fits it is sweatching to new window. In new window I need to use again my database so I need to add connecting datas again. I would like to get them from login window. How to do that? I know theory but when I am writting code nothing works. Here is working code for login panel :
/*import java.awt.BorderLayout;
import javax.swing.*;
public class Login extends JFrame {
public String url;
public static void main(String[] args) {
Log frameTabel = new Log();
[Code] .....
Use Tag Object Or Applet For Entering Class Name Data
Sep 30, 2014I have problem with this applet. the browser gives page.I don't know wether its not loading or if its extremely slow.Also I am confused on the html part.Should I use tag object or applet and for entering class name data,classid or name.
import java.lang.reflect.InvocationTargetException;
public class NewJApplet extends javax.swing.JApplet {
@Override
public void init() {
this.add(fesText);
this.add(jButton1);
this.add(jLabel1);
this.add(jLabel2);
this.add(jPanel1);
[code]....
Using Data From One Class In Another In Single Java File?
Apr 20, 2015I am trying to create a second class in a single java file (first time trying this) and want to use data from the first class in the second class but I am not able to do it. What am I missing :
package simplecommissioncalculation;
import java.util.Scanner; // import java.util.Scanner
public class SimpleCommissionCalculation {
public static void main(String[] args) {
[Code] .....