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
PrintWriter gives more methods (println), but the most important (and worrying) difference to be aware of is that it swallows exceptions. You can call checkError later on to see whether any errors have occurred, but typically you’d use PrintWriter for things like writing to the console – or in “quick ‘n dirty” apps where you … Read more
The mark and reset methods of streams provide a way to jump backwards in the stream and re-read data. When you call mark() on a BufferedReader it will begin keeping data you read from that point forwards in its internal buffer. When you call reset() it will jump back to the marked position of the … 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.
This works using java.util.Scanner and will take multiple “enter” keystrokes: Scanner scanner = new Scanner(System.in); String readString = scanner.nextLine(); while(readString!=null) { System.out.println(readString); if (readString.isEmpty()) { System.out.println(“Read Enter Key.”); } if (scanner.hasNextLine()) { readString = scanner.nextLine(); } else { readString = null; } } To break it down: Scanner scanner = new Scanner(System.in); String readString = … Read more
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
Looks like you need: http://commons.apache.org/io/apidocs/org/apache/commons/io/input/CloseShieldInputStream.html Wrap that around System.in before making your reader, and then all will be well, since you won’t do that when you are using a FileInputStream.
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