java-io

I'm getting this string from a web service. " JVBERi0xLjQKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1Jlc291cmNlcyAyIDAgUgovR3JvdXAgPDwvVHlwZSAvR3JvdXAgL1MgL1RyYW5zcGFyZW5jeSAvQ1MgL0RldmljZVJHQj4" It is supposed to be a pdf file, i tried this library pdfbox from apache, but it writes the content as a text inside the pdf. I've tried with ByteArrayInputStream but the pdf created is not valid, corrupted, this is some of the code i've wrote. public void escribePdf(String texto, String rutaSalida) throws IOException{ byte[] biteToRead = texto.getBytes(); InputStream is = new

I am getting this error when I try to open a file: java.io.FileNotFoundException: D:\Portable%20Programs\Android%20Development\workspace3\XXX-desktop\bin\World_X.fr (The system cannot find the path specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(Unknown Source) at java.util.Scanner.<init>(Unknown Source) The file is existing in the directory but I am still getting this error. However when I copy the same file in the Eclipse workspace Project src folder, no such Exception is returned (though this method also creates the World_X.fr file in the bin

I am trying to do the following I am getting a call to another person using my java application (Already done & works fine). Then I am playing a recording, for example "Please press 1 one to continue in english" (Already done & works fine). Now I want to detect that person press one, As per my researches in google search I got that this can do using DTMF.If the person press 1 I want to do the actions according to my condition. My question is how to detect that number using DTMF in java (J2SE). I am using ZTE USB dongle to make the call. Dialing, Hangup, And other controls did by using AT

How are mark() and reset() methods working exactly(in code below), step by step ? I tried to write my own example but is starts to throw wrong mark exception or similar to that, and I cannot understand what is the point of placing mark and reset methods in this code because I don't see difference with this or without. import java.io.*; class BufferedInputStreamDemo { public static void main(String args[]) { String s = "© is a copyright symbol, " + "however &copy isn't.\n"; byte buf[] = s.getBytes(); ByteArrayInputStream in = new ByteArrayInputStream(buf); int c; boolean marked = false; //try

This may be a silly one, but I want to know the background operation difference. InputStream is = new FileInputStream(filepath); FileInputStream is = new FileInputStream(filepath); What is the difference between the above two lines of code and in what scenarios are they used. FileInputStream extends InputStream : it is a specialized version of an InputStream designed for reading files. There are several implementations of an InputStream according to the use of it. It is usually good practice to use the highest type needed in your code. Therefore if your code needs to read data from an