I'm a new in java program. I need reading COM port on GPRS Modem. I plug the GPRS Modem in my PC and it has connected. I use Eclipse and create a project and new a file a.java, i collect this following code from the internet and paste it into the a.java file.
Java Code:
package serial;
import java.io.*;
import java.util.*;
import javax.comm.*; //for accessing serialport
public class OwnPort {
static CommPortIdentifier portId;
[Code] ....
You can see the result here
I don't know the result why return " Set default port to COM4. port COM4 not found."
I am creating an application with having a callerID module. This module is to read calling phone number from modem. I have googled and reference many SerialPort related stuff but could not find a concrete solution. I am able to detect phone ring using serialEvent with javax.comm jar.
I am wondering if AT commands can be used to read/get calling phone number. I also referred following AT commands:
AT+CLIP AT+VCID AT+CNUM
1. Is it possible to read calling phone number using AT commands or any other alternative
2. Which AT command can be used and how to send from java application..
displaying COM port in Combo box , see my code below , it does not show any error but it does not show COM port in combo box , instead it shows the class name of Communicator with some garbage data .
I have created a java gui application and I need to communicate through the serial port. I would like to open the serial port in the beginning of the application and then close it when the applications closes. The problem that I am having is that I created a method to open the serial port in the main function but I can not close the serial port on exit off the application. Is there away of having the serial port be setup so that all methods can access the serial port.
My company is a transport company. We receive goods form partner and transport it to customers. There is a process that we must accept a number of kilograms into bill after we weigh goods by the electronic balance(the electronic balance have serial port plug in PC) . To decrease this process, I'm looking for a project "read serial port wrote in java applet". Who have code,
I am trying to connect to Sql Server database using Oracle UCP with sqljdbc4-3.0 JDBC driver for Sql Server,with different ports and instances.
– the issue is with the port being ignored in the server string.
For example, using port 1440 connects to the default instance (which is on port 1433) rather than MSSQLINSTANCE1 which is on 1440.
Below are Server hosts used.
sql005.sqlasoftware.com (connects correctly to the default instance) sql005.sqlasoftware.com:1440 (connects incorrectly to the default instance on port 1433) sql005.sqlasoftware.comMSSQLINSTANCE1 (connects correctly to the named instance)
I need to port asynchronous bean (provided by websphere) support in App servers like weblogic and jboss. Is this feature already part of J2EE specification? Or should I use some other external package to get this feature?If so what are those async bean like features for weblogic and jboss?
A wages calculator application is required that can determine the total cost of crew departing from the port on that day. To do this, the application reads from an itinerary text file containing each ship being loaded in the port that day, in the following format:
<ship id> <journey id> <l> // where <l> is the length in hours of the journey <s> // where <s> is the number of crew for the ship for this journey <rate> // for each s, <rate> is hourly rate of pay
Your application must calculate the total cost of the crew for each ship/journey and then compare it with a "recommended maximum journey cost" (RM) amount typed in by the user when the application is first run. If the total amount is less than or equal to RM then the details must be written to the screen and to an output text file called wagedaily.txt. If the amount is larger than RM then the results must be written to the screen only. Messages to the screen must indicate whether the crew cost is less than, equal to or larger than RM.
Your application should find the ship with the highest crew cost that is below RM and print this out as the final piece of output to the screen.
It has given me a bunch of ships and numbers to play around with in the code, here they are:
I am currently working on a program that will read from a .txt file to create an arraylist. I will be working with the objects in the list to perform computations and display the data. The .txt file is in the following format: lastName firstName hoursWorked hourlyRate
With no delimiters. I've messed with this thing way too much in the last 12 hours (only day off for the week ) so variable names etc have changed often. At present the error I am receiving is "error: constructor GrossPayService in class GrossPayService cannot be applied to given types".
import java.util.*; import java.io.*; import java.text.*; class AryListObjects { public static void addEmployee(String firstName, String lastName, double hoursWorked, double hourlyRate) { ArrayList<GrossPayService> employees = new ArrayList<GrossPayService>();
i am reading pdf through java and write that data in .csv file.problem is like that when i read 500 pages from pdf at that time they can write only 496 lines what can i do for that i can read all 500 pages from the pdf .my code is like..............
public class pdf1 { public static void main(String[] args) throws SQLException, ClassNotFoundException { try { PdfReader reader = new PdfReader("me1.pdf");
//int n = reader.getNumberOfPages(); File outFile = new File("b.csv"); int n=500; int count=0; BufferedWriter writer = new BufferedWriter(new FileWriter(outFile));
I have a CSV file with 16K entries of a data table. Does Java work well with CSV file? So I found this code. And it seems its quite easy to read in the data I need. Say for example if I wanted a loop to randomly pick the first field of a specific line in the CSV data table. How would i go about coding that??????
The CSV looks like the above. and I basically would like to read in the Hand to get it to show in a text box and then randomly have the program ask me to correctly identify the True/False return for one of the SB/BB/UG/MP/CO/BN columns.
How could I read an XML document from the web? I've seen people use SAX or DOM methods, but I've unable to make them work due to lack of experience so I would need a pretty brief overview not just 2 bits of code without any imports etc.
Also how would I be able to COMPARE the information? Like if it's " Sunny " I set a label text sunny etc.?!
This is my program. All is working fine except stopping reading from console. Problem is that even after you write done if you are fast enough you are able to write more. As you can see I can't close scanner because of two inputs. Even so I tried to close it but problem was still here.
public static void main(String...args) { System.out.println("Write first input:"); System.out.print(streamToString(System.in, "")); System.out.println("Write secondinput:"); System.out.print(streamToString(System.in, ""));
I know that I need to use substrings, but I'm not sure how to implement them. All of the names are red in from the file "employees.txt".
Using the file Employees.txt
1) Scan the file and create user ids for each person according to the following scheme
a) Take the first and last character of the first name, convert them to upper case
b) Take the first and last character of the last name, convert them to upper case
c) Concatenate the results from a and b i) Example: John Brown would yield => JNBN
d) Add the length of the first name to the length of the last name, disregarding spaces
e) Concatenate the result from step c to the result of step d i) Example: John Brown would yield => JNBN9
f) Concatenate a four digit number to the end of this. i) The numbers should begin with 0000 and increment by 1 ii) Example: If John Brown is the fifth name in the list the resulting UserID would be => JNBN90004
2) Display the user ids in four columns with a width of 14
how to get the first few hex symbols of a file in java, for example if i input a pdf into my coding i want my program to output, e.g "25 46 44 38" ....
I have been able to print out the hex of a whole file but not managed to set a maximum read limit so that my code only takes a certain amount of values ....
my code is below and i want to read only integers.BUT the text file is starting with text and it stops executing without reading the numbers.Also i want to add the 3 parameters of each line.
try{ File fl = new File("C:/Users/Mario/Desktop/testing.txt"); //BufferedReader rd = new BufferedReader(new FileReader(fl)); Scanner sc = new Scanner(fl).useDelimiter("s+"); LinkedList<Integer> temps = new LinkedList<>(); sc.useDelimiter(System.getProperty("line.separator")); while(sc.hasNext()){
i have to read a text doc that has 149392014080186 (station# year/month/day temp) many more following but i have to read the temp and determine if it is under 80 degress my code so far is the second scanner reads the text file i need the 1st scanner reads the user info
/****************************************************************************** * * Filename : ClimateSummary.java. * Description: This program computes summaries of climate data and reads if it is rainy/not rainy or cold/hot. * ******************************************************************************/ //imports everything needed to run the program import java.util.Scanner; import java.io.*;
public static void listFiles(String path) { File[] list = null; File root = new File( path ); list = root.listFiles(); if (list == null) return; for (File f : list) { if (f.isDirectory()) {
[code]....
How would I get the overall progress of reading the directory I give to it, for example, if I give it the root directory of my computer, it would read through ALL my files and folders, and that works fine.But how would I get progress for a progress bar?
I have copied a wav file as explained in [URL] ..... When trying to play my new file, it runs but no sound is hear. My reading and writing class is as explained in another post in the site:
This is the function that reads the file:
// read a wav file into this class public boolean read(DataInputStream inFile) { myData = null; byte[] tmpInt = new byte[4]; byte[] tmpShort = new byte[2];
[Code] ....
I can't hear the copied wav file, but still the wav file is correctly copied...
