1. How to read negative byte values in Java less than -128 stackoverflow.comI'm reading data from another system using the serial port. I'm reading packets of 133 bytes. The second byte is the packet number and the third byte is the ... |
2. how to read bytes bigger than 127 in java? stackoverflow.comalright, so my code to read bytes into a int is like so: |
3. Trouble reading special characters (Java) stackoverflow.comI'm making a chat client that uses special encryption. It has a problem reading letters like «, ƒ, ? from the input buffer. Im reading them into a byte array and ... |
4. Read audio byte data in real time stackoverflow.comThe goal is to get a simple 2d audio visualizer that is somewhat responsive to the music. I've got the basics set up, where I have graphics that will respond to some ... |
5. point of Byte and Short in Java (I've read the other questions) stackoverflow.comMy question is: If I got it right from the Java disassembly, when I use |
6. Java: Loading png images without indexing (as BufferedImage.TYPE_4BYTE_ABGR), using javax.imageio.ImageIO.read() stackoverflow.comI am trying to load a PNG image using the javax.imageio.ImageIO.read() method. However, I want the resulting type to be "BufferedImage.TYPE_4BYTE_ABGR", but it ends up as an indexed image ("BufferedImage.TYPE_BYTE_INDEXED"). ... |
7. Bytes Read from PDF are skipped stackoverflow.com |
8. Read Byte[] as unsigned short Java stackoverflow.comI need to read a byte array of 16 bits as unsigned short number, and Java doesn't support unsigned short type. |
9. How to read unsigned 4-byte numbers? coderanch.comHello, In java.io.DataInput, there are methods readUnsignedByte (1-byte read), readUnsignedShort (2-byte read) but there is no readUnsignedInt(4-byte read). If I use readInt() it's a signed value. Any thoughts as to the easiest way I can read an unsigned 4-byte value? OF COURSE I'll store it as a long, but I'm lost. I could do it myself, but that's definitely not what ... |
10. How to read "long" in to byte table coderanch.comYou basically want to convert long to byte[]? Then just do that You know, long is 64bits and each byte can hold 8bits. You need to shift 8bits from the long 8 times and get each of them in the byte array. Alternatively you can also use ByteArrayOutputStream wrapped by a DataOutputStream to write long to it and to get a ... |
11. read bytes from Response object. coderanch.com |
12. Unable to read Unicode values using byte streams. coderanch.comHi everybody, I am have a file with Unicode characters. I wrote the following program import java.io.*; class Telugu { public static void main(String kk[]) { try { FileInputStream fis=new FileInputStream("telugu.txt"); System.out.println(fis.read()); }catch(Exception e){e.printStackTrace();} } } when I try to execute it and print the Unicode value (integer) it is printing 255 to the console every time. Previously i asked on ... |
13. How to read the raw data from TYPE_BYTE_BINARY BufferedImage java-forums.org |
14. Read a bitmap byte by byte java-forums.orgpixelData = bwc.read(getImageDataSize()); int pixelStride = 3; int scanlineStride = 3 * getBMWidth(); int[] bandOffsets = new int[]{2,1,0}; DataBufferByte dataBuffer = new DataBufferByte(pixelData, getImageDataSize()); ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); ColorModel colorModel = new ComponentColorModel(cs, new int[] { 8, 8, 8}, false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE); WritableRaster raster = Raster.createInterleavedRaster(dataBuffer, getBMWidth(), getBMHeight(), scanlineStride, pixelStride, bandOffsets, new Point(0,0)); imageBits = new BufferedImage(colorModel, raster, false, null); ... |
15. How to read a data via serial port from bytes arryas to Hex format java-forums.orgHi gyes, I am doing my first java project to read and write data via serial port. I can see only differnet charectors when I am printing data my divice I want only Hex format. Please any one have any advice reply to me import java.io.InputStream; import java.io.OutputStream; import gnu.io.CommPortIdentifier; import gnu.io.SerialPort; import gnu.io.SerialPortEvent; import gnu.io.SerialPortEventListener; import java.util.Enumeration; public class SerialTest ... |
16. Reading bytes in particular position forums.oracle.comIs it possible to define & retrieve number of bytes allocated? For e.g: Say, I have four values, each of different datatypes. Say, int, String, boolean, double. I am concatenating them to form an object. As int occupies 32bits, can I say, get the first 4 bytes. Nowhere have I found syntax to restrict the size like int(2) or to retrieve ... |
17. Reading jpeg as bytes forums.oracle.com |
18. how to handle byte[] size of a ByteArrayInputStream read()? forums.oracle.comThis is one time when available() will return something useful: in this case the number of bytes in the ByteArrayInputStream. Also the read() method returns something useful, and you are ignoring it.Don't. All that testing for zero is futile. There's nothing that says that a zero byte can't occur in the input. |
19. How can I read bytes from std input using nextByte() forums.oracle.comMy program tries to read input from stdin or from a text file and stores the input in byte arrays. I figured the most appropriate way would be to read each line one character at a time and store as bytes. If i use the Scanner.nextInt() method it works fine for storing integers but the Scanner.nextByte() does not work for storing ... |
20. Unable to read entire block;202 bytes read; expected 512 bytes forums.oracle.comI am trying to read an excel file using POI 2.0 (used 1.5 also) , but I get the following error: java.lang.Exception: java.io.IOException: Unable to read entire block; 202 bytes read; expected 512 bytes at csmip.EvpnExcelParser.displayFromExcel(Unknown Source) at csmip.EvpnExcelParser.importExcel(Unknown Source) at _jsps._mds._evpn_excel_import_jsp._jspService(_evpn_excel_import_jsp.java:130) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107) at javax.servlet.http.HttpServlet.service(HttpServlet.java:908) at com.iplanet.ias.web.jsp.JspServlet$JspServletWrapper.service(JspServlet.java:687) at com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:459) at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:375) at javax.servlet.http.HttpServlet.service(HttpServlet.java:908) at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:771) at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118) at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:293) at ... |
21. Problem with reading in bytes. forums.oracle.com |
22. byte reading forums.oracle.com/** * checks the given filename exists and is readable * @param String filename = the name of the file to "open". * @param OPTIONAl String type = a short name for the file used to identify * the file in any exception messages. * For example: "input", "input data", "DTD", "XML", or whatever. * @return a File object for the ... |
23. Reading data without knowing the number of bytes forums.oracle.comHi, I posted this here because this does not only applies on networking. How can I read somethig using the DataInputStream without knowing the number of bytes to receive. For example when reading a file I used to first get the number of bytes of the file using File.length (); and for networking for example when reading some data from a ... |
24. doubt in reading bytes - Scanner forums.oracle.comIam developed multithreaded Client Server program,in that my client send the data to the server in byte format.for eg:~!Raam7krishna~! iam send this data to the server.In the server side am using Scanner to retrieve the data based on the delimiter~!. The problem is iam retrieving the data Raamkrishna only 7 wont be there.Iam using next() method of scanner.... I need to ... |
25. Reading Bytes Encoded by a C Program forums.oracle.comHi, I have a C-Index database. If anybody is familiar with C-Index, it's a database created using C structures. Only a C program that knows the structure of the database can access it. C-Index encodes its database files to a particular binary file format (e.g. MyDatabase.dat). I wanted my Java program to read MyDatabase.dat. Is it possible to do so? If ... |
26. reading bytes and printing bytes as bytes. forums.oracle.comradix is a base value... ie, base 10 is the decimal stuff that you normally get. range 0 to 9 base 8 is octal, range 0 to 7 base 16 is hex, range 0 to 9 and A to F if you have an int value, you could just look at the toHexString() or toOctalString() methods to do a direct conversion, ... |
27. Read and write byte[] forums.oracle.comwhen making: outBytes.write(vv, 0, len); the len is the correct value so it seems silly to send that separatly... You misunderstand what that argument is for. It is just to tell it how many bytes from the array to write. It does not also tell it to actually write the number itself too. If you need to know the number of ... |