How To Write Java Lab Report
Jan 8, 2014I would like to know how to write Java lab report. If you have links or sample.
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Program Prompt For Input File / Take Its Info And Write To Report - Nullpointer Exception
Apr 17, 2014I've got a nasty nullpointer that I have tried to resolve to no avail as of yet. The program should prompt for a listings.txt file and take its info and write to a report file. Here's the stacktrace:
run:
Input file: listings
Exception in thread "main" java.lang.NullPointerException
at java.io.Writer.<init>(Writer.java:88)
at java.io.PrintWriter.<init>(PrintWriter.java:113)
at java.io.PrintWriter.<init>(PrintWriter.java:100)
at kettask2b.PropertyListingsReport.main(PropertyListingsReport.java:34)
Java Result: 1
Some adjustments that I have attempted are:
BufferedWriter pwfo = null;
for (int i = 0; i < args.length; i++) {
String string = args[i];
pwfo = null;
[Code] ....
Here's the code:
package kettask2b;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
[Code] ....
Java Servlet :: How To Display Text Field Value As Jasper Report Parameter
Oct 24, 2012I created a jsf page inside my ADF project. Inside I have a button and a text field. If i press button my servlet is activated. It returns a jasper report in pdf format. Now I would like to display my text field value as a jasper report parameter. So this is a part I don't know how to do. How do I get a value of my text field inside servlet? After this I know how to pass it to report.
View Replies View RelatedPrint Custom Invoice Of Page Size Using Jasper Report Or IText For Java
Jul 4, 2014I want to print data on invoice receipt size of 20.5 x 14 cm(hard copy). In which I try to put text at some absolute location. I tried iText first. In that I try to set page size by following code. here what is unite used in bracket of rectangle?
Document document = new Document(new Rectangle(552,377));
PdfWriter.getInstance(document, new FileOutputStream("report.pdf"));
document.open();
...
...
...
document.close();
Second I tried Jasper report. In that I set page size to 20.5 x 14 cm. But how can I take value from my java application's textfield and put it in to some absolute location in iReport.As I know jasper report take value from database but how can I take value from java application's textfiled?
I am more familiar with iText. How can I print custom invoice using iText or Jasper Report.I am developing java application using netbeans.
How To Automatically Increment ID And Then Display Only One ID In Report
Jun 7, 2014The program shall assign a new employee ID to the employee and display it on the screen.
The employee ID shall be generated by adding 1 to the largest employee ID already in the employee.txt data file.
You can see I've tried variations of identification++ but have not been successful. I've also tried to get the last or the highest identification in the arrayList but have not done that right.
public static void addEmployee() {
String firstName = Validator.getString(
sc, "Enter First Name: ");
String lastName = Validator.getString(
sc, "Enter Last Name: ");
int identification = 0;
[Code] ....
I also can display all of the employees their identifications and their punches but I cannot narrow it down to searching one employee and displaying information for just the one.
-If the selected value is ‘I’, prompt the user to enter the employee’s ID number.
-If ‘I’ is selected the display shall show the employee’s name and ID, list out each day worked in chronological order, the number of hours worked that day and a total number of hours worked in the two week period.
The report shall prompt the user to re-enter an employee ID of it does not exist in the employee file.
private static void displayReports() {
System.out.println("Report");
Scanner sc = new Scanner(System.in);
String action = " ";
while (!action.equalsIgnoreCase("d"))
[Code] ....
How To Create A Master Report Using Jasper API
May 8, 2014I am able to create a Master report using Jasper API. However stuck in designing a sub report using Jasper API and add it into Master report design.
Master Report JRXML
<band height="250" splitType="Stretch">
<subreport>
<reportElement isPrintRepeatedValues="false" x="0" y="0" width="550" height="233" isRemoveLineWhenBlank="true" backcolor="#000000">
</reportElement>
<dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{time})]]>
</dataSourceExpression>
[Code]...
These Stand alone XML's getting compiled and will generate report.
However i want to create these using Jasper Report API. I have Just started. But stuck without any example available.
JRDesignSubreport jSubreport = new JRDesignSubreport(jasperDesign);
jSubreport.setUsingCache(false);
jSubreport.setRemoveLineWhenBlank(true);
JRDesignExpression subReportDataSourceExpr = new JRDesignExpression();
subReportDataSourceExpr.addResourceChunk("");
//How to set List Data Source?
[Code]...
Combining Multiple Uploaded Documents Into One Report
May 28, 2014I have developed an application using Java JSP and PostgreSQL database which inputs data from users including multiple file uploads in different formats (MS Word, Excel, PDF etc.). The uploaded files are also stored in the database.
My client wants the software to print a report in PDF format which includes all user data entered (in a defined format) along with all the uploaded documents as appendices.
How the system can include all uploaded files into one PDF report?
Printing Database Report In Hard Copy
Jun 18, 2014How to print database report in hard copy. I have try to do this with the code below but it only print empty plain paper. Find the code below:
printbtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
Vector columnNames = new Vector();
Vector data = new Vector();
String host = "jdbc:odbc:staffsalary";
[Code] .....
The code is part of a program that do other task.
Combining Multiple Uploaded Documents Into One PDF Report
May 28, 2014I have developed an application using Java JSP and PostgreSQL database which inputs data from users including multiple file uploads in different formats (MS Word, Excel, PDF etc.). The uploaded files are also stored in the database.
My client wants the software to print a report in PDF format which includes all user data entered (in a defined format) along with all the uploaded documents as appendices.
How the system can include all uploaded files into one PDF report?
Report Employee Time Clock Cannot Find Corresponding Dates In And Out
Mar 8, 2014I have this assignment to build an employee time clock. By using a menu you can enter an employee, enter punch in and out, and report.When I created the punch screen I wrote the in and out records to a file. Because there can be several employees punching in or out the file wrote each occurrence on different lines. Now I am attempting to write the report which you enter an employee Id and loop through the file to find the in and out date and then calculate the time (hours worked). I loaded the file into an Arraylist but now I cannot figure out how to loop through find the In and Out date - calculate the hours worked and then move on to the next day. here is the format of the file - employee id, place holder I or O, date, time, day. and sample
111221111i3/2/145:10 PMSunday
111221111o3/2/145:10 PMSunday
111331111i3/2/145:25 PMSunday
111331111o3/3/1412:47 PMMonday
111221111i3/3/1412:48 PMMonday
111221111o3/3/142:23 PMMonday
111441111i3/4/141:30 PMTuesday
[code]....
here is my code from the main screen.
public static void displayPunches()
throws FileNotFoundException, IOException, ParseException {
boolean isValid = false;
String choice = "y";
String emp = Validator.getLine(sc, "Enter I -Individual or A -All ");
if (emp.equalsIgnoreCase("A"))
[code]....
Create And Report Ticket In Parking Meter Class
Sep 12, 2014I am having trouble creating the for loop in the Parking Simulator. I dont even know where to start. I have searched google and I havent found any Parking simulators that used array lists. Here are the requirements:
The ParkingSimulator Class: This class should simulate checking the parking tickets. You should loop through the cars, choose a random officer, and have that officer check to see if there is a parking violation. If there is a violation, add it to the ParkingTicket ArrayList. After all have been checked, print out a summary of the tickets (using the toString() from the ParkingTicket class).
I think I have all the classes right except for the ParkingTicket Class which I know is screwed up in the for loop because I cannot get the random officer and create and report ticket if mins were over maxlimit and it is printing the whole string of officers when it should be picking one officer at random to assign to the ticket. Also it is not printing out the whole output.
output should look like:
VW with license # N34234 parked for 60 minutes at PM1 and a maximum time limit of 90 minutes - no violation.
Reported by officer Joe badge: PO123
Mazda with license # 234-567 parked for 70 minutes at PM2 and a maximum time limit of 60 minutes
was parked illegally for 10 minutes for a fine of 25.0. Reported by officer Sam badge: PO812
etc;
Summary of tickets:
License:234-567 at meter #:PM2: Fine: $25.00
License:W879HY4 at meter #:PM4: Fine: $25.00
License:BG65RF7 at meter #:PM5: Fine: $25.00
[Code]....
PDF Uploading / Downloading And Report Generation Source Code In JSP
Sep 5, 2014I am developing an inhouse project in my organization. I unable to implement the pdf uploading, downloading, report generation logic as i am totally new to this implementation.
View Replies View RelatedHospital Management System - Generating Report On Daily Basis
Sep 30, 2014Hospital management system in java. I have designed Hospital, Doctor, Patient, Appointment classes. I am able to add doctor list and patient list and show the doctor list and patient list. How to take new appointment from a patient and assign it to a particular doctor and how to generate a report for inpatient and outpatient on a daily basis.
View Replies View RelatedRead Or Write In USB Using Java
Sep 30, 2014How can i use java for usb device? I want to read or write in a usb device in java. I've looked for in the web and i didn't find anything!
View Replies View RelatedI/O / Streams :: Report Generation Tool For Huge Data In Different File Formats
Apr 8, 2014I 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.
Best Way To Read / Write Files In Java?
Mar 31, 2014I have seen different methods of creating and reading files (specifically text files) in Java. The PrintWriter method or the Formatter with a Scanner to read the file, using a BufferedWriter with a BufferedReader, etc. They will all read/write text files, but from what I understand they do so in different ways. When would it be more beneficial to use a buffered writer than, say, PrintWriter, which is much simpler code-wise? Is there a "best" way to handle i/o in general in Java?
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Apr 9, 2014how to write java data to pdf file
View Replies View RelatedWrite A Java Program That Uses A While Loop
Apr 9, 2014Write a java program that uses a While loop and persistent output to count down from 33 to 0 by threes, and put each value on a separate line, also do this in for loop.
View Replies View RelatedHow To Create And Write Files With Java
Jun 19, 2014How come that nobody has a normal name? ... like:
E40S,
EcAABtdtcC,
eveascavsa7242,
GrGGDahkcA,
HaHKNhibzB,
HbJFZqxsgR,
or almost nobody.
Second question, this is the exercise I have to make:
write a program that reads a sentence and write it on a file separating each word on a diffrent line of the file
Java Code:
package vacanze_estive_8;
import java.io.File;
import java.io.EOFException;
import java.io.PrintWriter;
import javax.swing.JOptionPane;
[Code] ....
Reading Text File With Specific Input Format - Output Formatted Report
Apr 10, 2014Here's a link to it : [URL] ....
The basic gist is it's "A program that reads in a text file that uses a specific input format and uses it to produce a formatted report for output."
Specifically :"For this lab you will write a Java program that produces a simple formatted report. The program will prompt the user to enter a file name. This file must contain information in a specific format (detailed below). Each "block" of the file contains information for one player in a competition -- the name of the player followed by a number of different scores that that player achieved. The program should find each player's average score, median score and best and worst scores and display them in a line on the final summary report. The program should also determine which player has the highest average score and which player has the lowest average score."
I get the following errors when I try and compile it:
Enter an input file name: Project11.txt
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException... -1
at java.util.ArrayList.elementData(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at Project11.getMedian(Project11.java:68)
at Project11.main(Project11.java:27)
I get that the error(s) reside in lines 68 and 27, among problem other areas, but I'm not exactly sure how I can fix them.
Here's my code:
import java.io.*;
import java.util.*;
public class Project11 {
public static void main(String[] args) throws IOException{
Scanner in = new Scanner(System.in);
System.out.print("Enter an input file name: ");
String input = in.nextLine();
[Code] ....
How To Write A Code In Java To Scan Documents
Nov 5, 2014I want to write code in java to scan documents.
View Replies View RelatedHow To Write Mini Sudoku In 4x4 Puzzle Using Java
Oct 31, 2014How to write a mini sudoku in 4x4 puzzle using java The entries of each grid are 1,2,3 or 4 only.
No number will be the on a row.
No number will be the same in a column.
There are 4 regions in the puzzle and no number will be the same in a region.
I want to ask how to finish the below code, because I don't know how to extend using the below code
import java.util.*;
public class MiniSudoku {
final static int SIZE=4;
[Code]....
How To Write A Dot File That Prints Graph In Java
Dec 6, 2014Let's say if I want to create a dot file that print this graph in Java, how do i go about it?
I'm starting with this:
PrintWriter writer = new PrintWriter("graph.dot");
Write A Java Program To Input 7 Integers?
Feb 21, 2015Design, write a java program to input 7 integers and, for each integer, calculate and display its square and cube.
View Replies View RelatedWrite A Java Program That Reads 5 Integers
Oct 9, 2014Project is due before midnight eastern time (3 more hours). I have been working on this all day, we have not learned arrays or anything and just started 'for' loops. I don't really know how to implement that system yet. However, he wants us to check all the possible handwritten math ways of doing this. I have tried but I cannot return my numbers beside the card.my program only prints the type and I still have more cases to add as well..
QUESTION: Write a Java program that reads 5 integers, each of which is in the range of 1 and 13 representing a simplified poker card with no suit. Your program should then print the ranking of the hand with card number(s) beside the ranking. The rankings to determine are Four of a Kind(4 of the 5 cards of the same rank), Full House(3 of the 5 cards of the same rank, and 2 cards of another rank), Straight(5 cards of sequential rank), Three of a Kind(only 3 cards of the same rank), Two Pair(2 cards of the same rank, 2 cards of another rank, and no card of either rank), One Pair(only 2 of 5 cards are of the same rank), and High Card(no two cards of the same rank). Some sample runs are:
input: 2, 3, 2, 2, 2; output: Four of a Kind(2)
input: 2, 3, 2, 3, 2; output: Full House(2, 3)
input: 2, 3, 4, 5, 1; output: Straight(5)
input: 1, 13, 11, 10, 12; output: Straight(1)
[code]....
Create And Write To A Excel File From A Java Program?
Jul 10, 2007I want to create and write to a excel file from a java program. I found a tutorial online and wrote a java file as under:
Java Code: import java.io.File;
import java.util.Date;
import jxl.*;
import jxl.write.*;
public class jExcel{
WriteableWorkbok workbook = Workbok.createWorkbook(new File("output.xls"));
public static void main(String args[]){
WriteableSheet sheet = workbook.createSheet("First Sheett",0);
Label label = new Label(0,2,"A label record");
sheet.addCell(label);
[code].....
But when I compile this file, I get errors telling that package jxl does not exists and so on. Do I need to download it ?