Saving Huge Data Into Oracle Column

Feb 2, 2015

How can I save an expression like (a & b) | C | D | (e & f) in oracle. And how how can i retrieve that in java.

a , b , c , d are some values.

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I/O / Streams :: Report Generation Tool For Huge Data In Different File Formats

Apr 8, 2014

I need to generate reports for huge data (around 2 to 5 lakh records) in different file formats (PDF , XLS , RTF , XML) in my web application.

Data will be fetched from database.

I have been searching for a best open source report generation tool and ended up on choosing on Dynamic Reports.

Aspose , is licensed and unluckily we could not afford to at this moment.

Whether i can use Dynamic Reports , or is there any other tool available.

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Saving Data To A File

Oct 1, 2014

I am learning FileIO and I am having an ArrayIndexOutOfBoundsException for the following code and I am unsure why...

import java.io.*;
public class ArrayWriter {
public static void main(String[] args) {
PrintWriter fout = null;
int[] data = new int[10];
for(int i = 0; i<data.length; i++) {
data[i] = (int)(Math.random() * 101);

[Code] ....

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Saving Data Using Java

Sep 18, 2014

So I'm still learning how to save data using Java. I know that saving data is extremely important when it comes to creating video games.

What I have here is this simple program.

Java Code:

import java.util.*;
import java.io.*;
import java.lang.*;
public class Character
{
private Formatter x;
private int roomNum;
private boolean[] visited = new boolean[10];

[Code]...

I'm trying to make sure that after I exit the program, joe starts in room 4, not room 1, and that he has visited rooms 1, 2, 3, 4, and 10. I have the save data created, but how do I save an array of boolean values?

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Saving Data To TXT File

Oct 27, 2014

I was able to create the txt file. How to get it to output my code. I know it's an object and it is a way to save data.
 
package multiplicationFile;
import java.util.Scanner;
import java.io.*;
public class Multiplication {
public static void main(String args[]) throws IOException {
PrintWriter outF = new PrintWriter("multiplications.txt");

[Code] ....

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Application Web Java To Insert Data Into Database Oracle From XML Files

Oct 27, 2014

I want to create an application wich can handle xml files ( display xml files's data on a html page) + insert those data into an oracle database.

I'm new to that, it a project for my internship. wich API is the most appropriate for that ( Jdom or Xstream or other), wich framework i can use ( there is only 3 IHM : connexion, upload file, display data, confirmation insertion data)?

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Java Servlet :: Unable To Send Data From JSP To Oracle Database

Jan 31, 2013

I'm creating a web applicaion. for that i want to create a registration page. and this registration details have to be stored in the database.

I'm getting the below error while trying to send the data ...

The requested resource (/cmd/InsertRegtodb) is not available.

Here cmd is project name and InsertRegtodb is servlet name.

Actually the servlet is present is the mentioned address. but it is not connecting to it

There is one more servlet in the same folder and which is accessible from another jsp. But this servlet is not accessible even though i have used same code as it is used for the servlet which worked for me previously...

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Saving Data To A File That Has Been Entered

Jan 21, 2014

I am trying to save the data a person enters to a file. See code below. It is compiling however the file created only shows largest =89, i want the file to show all the data a person enters.

import java.util.*;
import java.io.*;
public class LargerOfThree3{
public static void main(String args[]){
Scanner in = new Scanner(System.in);

[Code] ...

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Code Not Saving Data To Database

Nov 2, 2014

I have a simple project to save data to the database. I have successfully mapped the java class with the database table. The code displays no error, it runs very well but it does not save to database, instead it catches an exception and prints out "saving failed". The database is a mysql database.

This is the managed bean code. Save.java(name=bean)
 
//imports
 
@ManagedBean(name="bean")
@RequestScoped
public class Save { 
private String username,password,msg;
Session session = null;
Transaction transaction = null;
//GETTERS AND SETTERS
public Save() {

[Code] ....

This is a screenshot of my Hibernate configuration file : hb.jpg

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Swing/AWT/SWT :: Saving And Loading Data Of Jtable

Apr 6, 2015

I am trying to make a program where a user can enter guests name for a hotel, the JTable includes rows for the name of the tenant, the room number, month etc.

I've made the table, however I am having some trouble in saving the data that I put into the table. I used jtextfield and a jbutton to but data into the jtable. I am trying to save the data, and load it just buy clicking a button.

table.setModel(new DefaultTableModel(
new Object[][] {
},
new String[] {
"Room", "Name", "Month", "Payment"//table rows
}
));

This is my basic table. And what I'm trying to do to save the data is:

DefaultTableModel model = new DefaultTableModel();
private JFileChooser myJFileChooser = new JFileChooser(new File("."));
private void saveTable() {
if (myJFileChooser.showSaveDialog(null) ==
JFileChooser.APPROVE_OPTION ) {
saveTable(myJFileChooser.getSelectedFile());

[Code] ....

When I run my program, I'm able to click on a button, and the dialog box will appear, I'm also able to save the data to a file. However when I click on the retieve data button I made the dialog box opens, the file is there, however when I click it, nothing happens.

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Storing New Users Into Arraylist - Saving Data In Txt

Dec 4, 2014

I have created this project and want to be able to add new members to my members arraylist, store the input in a .txt file and load the new members after closing and opening the program.

[URL] .....

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Saving Edited Data From JTable Into Database?

Jul 16, 2014

The Table Model

package presentation;
import java.util.List;
import javax.swing.table.AbstractTableModel;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import business.*;
public class BgTableModel extends AbstractTableModel

[code]....

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Saving Edited Data From JTable Into Database

Jul 16, 2014

I've tried everything but in vain..I want to save the data from the table into the database, I can easily connect to the database. All I want is how to get the values from the table. I've tried this method to get the values but its not working because of the contructor error in the BgTableModel class.

Tried Method
public void writeBgEdu() {
int last=gtm.getRowCount();
System.out.println(last);
for( int i=0;i<last;i++) {
if(((String) gtm.getValueAt(i,0))!=null)

[Code] .....

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Storing New Users Into Arraylist - Saving Data In TXT File

Dec 4, 2014

I have created this project and want to be able to add new members to my members arraylist, store the input in a .txt file and load the new members after closing and opening the program.

[URL] ....

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GUI Confirm Button - Saving Data Input Into Database

May 4, 2014

We are currently trying to use the "confirm" button on our GUI as a fully functioning feature that saves the data input into a database. Here is the code for the GUI we have created...

We are trying to save some details of users for a database.

I've attached our work in zipped folder as i couldn't upload a thread with some many "URLs" .....

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Parsing CSV File - Column And Row Data?

Dec 19, 2014

I am trying to merge two files together using the Apache Commons CSV library. I figured it was easier to use this than to write my own implementation.

The first problem is that the output contains the underlying class logic and as a results my output contains a bunch of un-needed data. How do I get rid of this? I just want the column and row data, nothing else.

Example

I want this:

customerNo, firstName, lastName, birthDate, mailingAddress, married, numberOfKids, favouriteQuote, email, loyaltyPoints
1, John, Dunbar, 13/06/1945, 1600 Amphitheatre Parkway Mountain View, CA 94043

But I get this:

CSVRecord [comment=null, mapping=null, recordNumber=1, values=[customerNo, firstName, lastName, birthDate, mailingAddress, married, numberOfKids, favouriteQuote, email, loyaltyPoints]]
CSVRecord [comment=null, mapping=null, recordNumber=2, values=[1, John, Dunbar, 13/06/1945, 1600 Amphitheatre Parkway
Mountain View, CA 94043

The second problem is that I just want the row Headers from the first file, but the row headers from my second file are still being included in my output. I used withSkipHeaderRecord(true), but it didn't have the desired results.

Code is below.

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Reader;
import java.util.ArrayList;

[Code] .....

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Filtering MySQL Data To JTable In Particular Column

Jun 11, 2014

I have a jtable. the fields are like Product_code,Product_name,Qty,Rate in my java program.. now i want to do is when i press a first letter in my jtable under Product_name like "P" it will display the reminding Product_name which will have the starting letter of "P" like pen, pencil, peper like this i want to populate in my jtable.

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Huge Numbers And Doubly Linked List

Jul 15, 2014

I am trying to create doubly linked list that can hold huge numbers (i.e. 123456789) and add them together. I have seen some examples on how to do this for linked list, but none really for doubly linked list.

Here is my test driver:

public class HugeNumberDriver
{
/**
* Main method with some test code
*/
public static void main(String[] args)
{
// Create a HugeNumber that is 123456789
HugeNumber h1 = new HugeNumber();
for (int i=9; i>=1; i--)

[Code] ....

Output:

h1 is 987654321
h2 is 88888888885555555555
Exception in thread "main" java.lang.NullPointerException
at HugeNumber.<init>(HugeNumber.java:52)
at HugeNumberDriver.main(HugeNumberDriver.java:29)

As you can see the numbers are displayed incorrectly and the rest of the program does not run. I have a feeling that it has to do with my deep copy constructor or my addDigit() method

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How To Insert Value Into SQL Server Table Column Of Data Type Datetime With JDBC

May 8, 2014

How can insert value into sql server column of data type 'datetime' with jdbc the methods in java.sql are 'setdate()' and 'setTime()'

How can I do this. I'm using java.time.LocalDateTime.

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JSF :: Unable To Set Prime-faces Data Table Column FilterMatchMode In Managed Bean

Nov 13, 2014

I have a requirement where in my primefaces datatable ,the filterMatchMode attribute(like any part of field,whole field) needs to be selected by the user by select menu .

To achieve this i have declared a variable in my viewscoped managed bean as filterCriteria and set the filterMatchMode attribute as filterMatchMode="#{beanName.filterCriteria}".The bean variable is getting set in the managed bean on submit but the filtering is not happening,i am getting empty message.

Also when i remove the keyed in value from filter box the data table is not restored which otherwise must be restored in normal situations. I have used and modified the example code given in primefaces showcase here.The code snippet is as below

<h:form id="tblFrm">
<h:selectOneMenu id="filterOptions"
value="#{dtFilterView.filterOption}" required="true"
requiredMessage="You must select an option!">
<f:selectItem id="hd1" itemLabel="Select" itemValue="#{null}" />

[code]....

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Sum Elements Column By Column

Oct 21, 2014

Write a method that returns the sum of all the elements in a specified column ina matrix using the following header:

Public static double sumColumn(double[][] m, int columnIndex)

Write a test program that reads a 3 by 4 matrix and displays the sum of each column.

import java.util.*;
public class SumColumns {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
final int ROW = 3;
final int COLUMN = 4;

[Code] .....

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Make Date Column Show Only Date And TimeIn And TimeOut Column Only Show Time

Mar 11, 2014

How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.

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Oracle Driver In Java App?

Jul 26, 2014

Where do I have to put the ojdbc6.jar file so that Java finally recognizes it?I'm trying to connect to a Oracle XE databse from a Java application, but

Class.forName("oracle.jdbc.OracleDriver");

Will throw a ClassNotFoundException no matter where I put the driver. Stuff like this should be extremely simple but I am about to give up for good now.

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Name And Address Matching From Oracle Database

Apr 26, 2015

I need a java program for getting name and address matching from oracle database. I need get all the customer name and address belonging to same person even if there is slight name and address changes are there.

James Smith
123 Broadway Av
Brownville, ME 04415

James S
123 Brodway Avenue
Brownville Junction, ME 04451

I am unable to get a best code for this and trying since long time.

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How To Access Oracle DB Without Using ODBC Driver Jar File

Oct 15, 2014

I need to access Oracle database without using ODBC driver using DAO only, how to do that...

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JDBC :: Java Oracle Rac Connection URL Using Scan

Dec 30, 2014

I am trying to connect to an oracle rac using jdbc thin . when i use the scan as the host, like this

String url = "jdbc:oracle:thin:@//<scan>:port/servicename;

I get error 1153, connection refused

but when i use the ip of the rac instead of the scan

String url = "jdbc:oracle:thin:@//<ip>:port/servicename;

The connection is successful
 
Is the issue at the application level? or is the problem with the server ....

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