To read a text file with a specific encoding you can use a FileInputStream in conjunction with a InputStreamReader. The right Java encoding for Windows ANSI is Cp1252. reader = new BufferedReader(new InputStreamReader(new FileInputStream(csvFile), “Cp1252”)); To write a text file with a specific character encoding you can use a FileOutputStream together with a OutputStreamWriter. writer … Read more
In $JRE/lib/security/java.security: jdk.tls.disabledAlgorithms=SSLv3, TLSv1, RC4, DES, MD5withRSA, DH keySize < 1024, \ EC keySize < 224, 3DES_EDE_CBC, anon, NULL This line is enabled, after I commented out this line, everything is working fine. Apparently after/in jre1.8.0_181 this line is enabled. My Java version is “1.8.0_201.
Try with the following: File file = new File(“C://fichero.csv”); BufferedReader bufRdr = new BufferedReader( new InputStreamReader(new FileInputStream(file),”ISO-8859-1″)); String line = null; line = bufRdr.readLine();
You are reading the line twice.. while ((read = in.readLine()) != null) { // here read = in.readLine(); // and here
First, You should understand “streaming” in Java because all “Readers” in Java are built upon this concept. File Streaming File streaming is carried out by the FileInputStream object in Java. // it reads a byte at a time and stores into the ‘byt’ variable int byt; while((byt = fileInputStream.read()) != -1) { fileOutputStream.write(byt); } This … Read more
mark/reset is what you want, however you can’t really use it on the BufferedReader, because it can only reset back a certain number of bytes (the buffer size). if your file is bigger than that, it won’t work. there’s no “simple” way to do this (unfortunately), but it’s not too hard to handle, you just … Read more
also very comprehensive… try{ InputStream fis=new FileInputStream(targetsFile); BufferedReader br=new BufferedReader(new InputStreamReader(fis)); for (String line = br.readLine(); line != null; line = br.readLine()) { System.out.println(line); } br.close(); } catch(Exception e){ System.err.println(“Error: Target File Cannot Be Read”); }
Try this to read a file: BufferedReader reader = null; try { File file = new File(“sample-file.dat”); reader = new BufferedReader(new FileReader(file)); String line; while ((line = reader.readLine()) != null) { System.out.println(line); } } catch (IOException e) { e.printStackTrace(); } finally { try { reader.close(); } catch (IOException e) { e.printStackTrace(); } }
The problem in your code is that it’s creating lots of heavy String objects, copying their contents and performing operations on them. Instead, you should use StringBuilder to avoid creating new String objects on each append and to avoid copying the char arrays. The implementation for your case would be something like this: BufferedReader r … Read more
You don’t need a console. You can execute a process using a working directory: exec(String command, String[] envp, File dir) Executes the specified string command in a separate process with the specified environment and working directory. command is the location of the .exe envp can be null dir, is the directory of your .exe With … Read more