I/O / Streams :: Read Calling Number From Modem?
Jun 6, 2014
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..
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Aug 25, 2014
I have a problem with € symbol ... an application write a String content on the file system with following code:
out = new FileOutputStream(strPath + "import.xml");
out.write(trp.getTrpXMLModel().getBytes("ISO-8859-1"));
It's correctly wrote on the file system:
TT;Pierre-H€enri;;Orange Grove;zefezfezfez, Directeur Juridique;TT;;azdaz;01 53 33 56 87;ezfezfez;01 53 33 51 59;.....&ée&ée;;;;;;132;CORDIAL;aaa
But when the application try to read the previous file with following code:
BufferedReader in = new BufferedReader(new InputStreamReader(inStream,"ISO-8859-1"));
String line = in.readLine();
The application isn't able to properly read the symbol ... and return following line, without "€":
TT;Pierre-Henri;;Orange Grove;zefezfezfez, Directeur Juridique;TT;;azdaz;01 53 33 56 87;ezfezfez;01 53 33 51 59;.....&ée&ée;;;;;;132;CORDIAL;aaa
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May 13, 2012
I am looking for a pure java api that can read metadata from an mp4 file, I have looked online but all apis I found are wrappers to native code. How to read mp4 with java .....
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Nov 8, 2014
I have a binary file that has identifiers for the start of each record
You can see here that the record starts with 00 00 and the next record starts with 00 00 etc...
How do I read between these two points throughout the file?
RandomAccessFile database = new RandomAccessFile(databasePath, "r");
int start = 0;
int end = 0;
database.setLength(start);
database.seek(end);
The first start would be the start of the file, the next start would be the end of the first start and so on..
I'm just not sure how to put that into a loop.
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Oct 14, 2014
I am developing a program that reads a digital certificate in a USB token, but can not cause the program to access the token.
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Oct 11, 2014
I'm having a bit of trouble with using the Scanner and the Printwriter. I start with a file like this (1 = amount of Houses in the file)
1
FOR SALE:
Emmalaan 23
3051JC Rotterdam
7 rooms
buyprice 300000
energylevel C
The user gets (let's say for simplicity) 3 options:
1. Add a House to the file,
2. Get all Houses which fullfil requirements (price, FOR SALE / SOLD etc.) and
3. Close the application.
This is how I start:
Scanner sc = new Scanner (System.in);
while (!endLoop) {
System.out.println("Make a choice);
System.out.println("1) Add House");
System.out.println("2) Show Houses");
System.out.println("3) Exit");
int choice = sc.nextInt();
Then I have a switch for all of the three cases. I keep the scanner open, so Java can get the user input (house = for sale or sold, price = ... etc). If the user chose option 1, and all information needed is inputted and scanned, the House will be written to the file (which looks like what I typed above).
For this, I use try (PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("Makelaar.txt", false)))). This works perfectly (at least so it seems.)
If the user chose option 1, and all requirements are inputted and scanned, the Houses will be read (scanner) from the file and outputted. For this I use the same Scanner sc. This also works perfectly (so it seems atleast).
My problem is as follows: If a House has been added, I can only read the House(s) which were already in the file. Let's say I have added 2 houses, and there were from the start 3 houses. If option 2 is chosen, the first 3 houses will be scanned perfectly. An exception will be caught for the remaining 2 (just added) Houses. How can I solve this? I tried to close the Scanner, and reopening it, but apparently Java doesn't agree with this
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Jun 25, 2014
I'm getting an IllegalArgumentException returned when I try to get a file using guava library.
I previously had the function working when the file was in a different location, before I switched to running JBehave, my steps run but it fails to find the resource, even after I've moved it.
The code being executed is (this worked previously before using JBehave):
String xMLTemplateFileName = "OBOE-confirmation"
public static void setXMLTemplateFile(String xMLTemplateFileName) throws IOException {
URL url = Resources.getResource(xMLTemplateFileName+".xml");
The file I'm looking for is in the root folder for src/main/resources and also src/test/resources, previously I had it within a completely different location before I switched over to JBehave. I've tried it within a subdirectory in the same locations too.
I've recently updated the pom.xml to try to include the location required.
Extract from pom is below:
<!-- JBehave Build Details -->
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.6</version>
[Code] ....
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May 24, 2014
I need to read the contents of file A, and B and store it in file C by joining the contents of A and B and also counting the number of letters/characters present in it.
I've come up with this so far.
import java.io.FileInputstream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class JavaApplication43{
public static putwrite(string fname) throws FileNotFoundException, IOException
[code]...
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Sep 3, 2014
Java code to send sms through gsm modem using AT commands..
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Jul 16, 2014
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."
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Apr 23, 2015
How would I program a counter that will return the total number of search, failed searches and correct searches. The second thing is how can a return the price of the search methods with out calling for it specifically. Here is my current code.
package stu.paston.program7;
import java.util.Scanner;
public class MainClass
{
public static void main(String[] args)
{
InventoryClass productData= new InventoryClass();
[Code] ....
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May 5, 2014
My requirement is to find the line number using multiline string. Here I need to extract the string between FROM and where clause(from the below string) and need to find the line number in the file
SELECT HL.LOCATION_ID,HPS.PARTY_SITE_ID,HCAS.CUST_ACCT_SITE_ID
INTO LN_SITE_LOCATION_ID,LN_LOC_PARTY_SITE_ID,LN_CUST_ACCT_SITE_ID
FROM HZ_LOCATIONS HL,
HZ_PARTY_SITES HPS,
[Code]....
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Apr 8, 2014
Basically i have a question ask me to write a program that read integer from keyboard until a negative number is entered, and then print out the max and min out of the number i have entered.
This is what i have done already which works, but i need to ignore the negative number when print out max and min...which i dont know how to do so. when i compile this program now it will always give me the negative number i enter at the end as minimum. which i need to ignore
Also if negative number is entered at once the program should print a error message say max and min are undefined.
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int large = Integer.MIN_VALUE;
int small = Integer.MAX_VALUE;
while(true) {
System.out.print("Enter a integer: ");
int n = in.nextInt();
[Code] ....
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Oct 10, 2014
Ex. If I type 5943, the program will say
mill = 5
hun = 9
ten = 4
uni = 3
get the picture I had to translate the decimal value names from a different language.
This is what I have tried...,
Java Code:
import java.util.Scanner;//Permite el uso de leer el teclado del usuario
public class DeterminarValorDecimal//Nombra el documento
{
public static void main(String [] args)//Podemos ver la clase
{
[Code].....
But what this does is I have to enter the single digits one by one. I want to be able to type the whole number. Is there a method that reads the length of the whole number and lets me classify each digit so I can do what I want to do?
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Dec 19, 2014
I have to write a program that will read a picture and then print out the number of blocks inside it.
I have to read the picture as a binary matrix of the size r - c (number of rows times number of columns). The blocks are groups of one or more adjacent elements with the value 1.
- Blocks are built exclusively of elements with value 1
- Each element with value 1 is a part of some block
- Adjacent elements with value 1 belong to the same molecule.
We only take into account the horizontal and vertical adjacency but not diagonal.
INPUT:
In the first line of the input we have the integers r and c, separated with one space.
Then we have the r lines, where each contains s 0's and 1's.
The numbers inside the individual lines are NOT separated by spaces.
The OUTPUT only print the number of blocks in the picture.
Example:
INPUT:
7 5
01000
00010
00000
10000
01000
00001
00100
OUTPUT:
6
THIS IS WHAT I CAME UP SO FAR:
import java.util.Scanner;
class Blocks{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
char ch[][];
int rowNum=sc.nextInt();
int columnNum=sc.nextInt();
[Code] ....
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Sep 7, 2014
I need to write a simple program that reads an amount of minutes and displays the approximate number of years and days for the minutes. For simplicity, assume a year has 365 days and the resulting amount of days is a whole number.
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Sep 22, 2014
I know that it's possible to retrieve a line from a txt file but say for example my file looked like this:
staff id = 1
firstname
surname
age
staff id =2
firstname Kate
surname Hollar
age 33
staff id =3
firstname Daniel
surname Hong
age 21
It is possible to retrieve just the staff id's?
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Apr 28, 2009
Here is the code I am trying to execute its giving me the error with TextReader..
import java.io.*;
import java.util.*;
public class WordCount {
static TextReader in; // An input stream for reading the input file.
static PrintWriter out; // Output stream for writing the output file.
[Code] .....
The error is:
C:
eha>javac WordCount.java
WordCount.java:20: cannot find symbol
symbol : class TextReader
location: class WordCount
static TextReader in; // An input stream for reading the input file.
[Code] .....
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Jul 31, 2014
I've been wondering about this for a while. Is there any way to parallel I/O operations or is this a bad idea? If you could create two lists of good and bad ways to parallelize I/O.
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Dec 16, 2006
i want to know when i have to use Flush in java , i saw alot of code that used it IO streaming , but i cannt understand how can i use it , or when i have to use it
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Aug 12, 2014
I have a code that clear old text then add new text to text file afterthat download the file but the problem my code dose not add new text
FileInputStream fileToDownload ;
private static final int BYTES_DOWNLOAD = 1024;
response.setContentType("text/plain");
String name = request.getParameter("n");
String text = new String(request.getParameter("text").getBytes("iso-8859-1"), "UTF-8");
[Code] ....
How to clear old text then add new text to text file
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Oct 5, 2014
Requirements - Use only standard Java API and no apache file utils for this.
Most of the answers I found on the internet either dont meet this requirement or load all file names into an array which can consume too much memory when no. of files = 20,000+. how I can do this. Is there also a way to keep track of new files that were added during the execution of the loop in this code ?
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May 20, 2014
I would like to create a component to detect the file being modify before process.is it the right way to detect the file modification based on file size value?
Below are the flow:
1. Get the file size of a file
2. Used file size value encrypt it with MD5 algorithm, and say it generated us encrypted value "0123sdf"
3. to avoid user modify the file content, before file process, we take the file and do the encryption with md5 again, if it return value "0123sdf", then we are sure it doesn't have modification.
my question:
a. is it the right approach to detect file modification?
b. what the library advise to use or using java.security.DigestInputStream will do?
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Sep 18, 2009
I am trying to execute the a command using process builder. But that command is having some Japanese Character. So it is executing the command but result is not as expected.
command i tried : 1) echo 拝見 マイクロエレクトロニクス 2) mkdir "d: est拝見 マイクロエレクトロニクス"
OS: XP SP2
result: some chunk char are getting displayed.
See here a sample code which i tried ...
String commandNotWorksFine ="echo 拝見 マイクロエレクトロニクス";
String charSetname = "Shift_JIS";
String[] envArr = new String[] { "cmd", "/c", commandNotWorksFine};
ProcessBuilder builder = new ProcessBuilder(envArr);
Process p = builder.start();
[Code] ....
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Aug 27, 2014
I have a very big string that I am returning from servlet to javascript. I am using PrintWriter.
PrintWriter out = response.getWriter();
out.print(bigString);
But as the string is very big my code is not working. My browser just hangs.
Also is it possible to stream the output? i.e instead of sending entire string, can I send small part of string at a time. So that my browser will not hang. I don't want to handle streaming manually I am just looking for an IO class which will do the streaming automatically.
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Jul 30, 2006
I want to create hidden files, some sample code for doing this.
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