Java: Pass values to the jar using OutputStreamWriter

Java: Pass values to the jar using OutputStreamWriter

By : aantunovic
Date : November 14 2020, 04:48 PM
I wish did fix the issue. I guess I found the solution to my question. For future reference, the following is the final program that I've used to solve my problem:
code :
ProcessBuilder pb = new ProcessBuilder("java", "-jar", "myfile.jar", "arg1");

Process p = pb.start();

InputStream in = p.getInputStream();
InputStreamReader ins = new InputStreamReader(in);
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(p.getOutputStream());
BufferedReader br = new BufferedReader(ins);

String line = null;

while ((line = br.readLine()) != null) {

    if (line.contains("Start the load process (y/n)?")) {

    if (line.contains("Start the patch process (y/n)?")) {


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Java Android OutputStreamWriter IOException

Java Android OutputStreamWriter IOException

By : rathish
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Looking at the source code, that exception is thrown when doOutput is not set to true:
(From: http://www.java2s.com/Open-Source/Android/android-core/platform-libcore/org/apache/harmony/luni/internal/net/www/protocol/http/HttpURLConnectionImpl.java.htm)
code :
public OutputStream getOutputStream() throws IOException {
    if (!doOutput) {
        throw new ProtocolException("Does not support output");
OutputStreamWriter java can't store into string

OutputStreamWriter java can't store into string

By : Maiki
Date : March 29 2020, 07:55 AM
may help you . , For example use this (it avoids encoding the string):
code :
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(doc), new StreamResult(writer));
String str = writer.getBuffer().toString();
java OutputStreamWriter and CP437

java OutputStreamWriter and CP437

By : OnlyGuyHere
Date : March 29 2020, 07:55 AM
I hope this helps . CP437 encoding requires 8 bits to store, I executed your code and found the value stored in a byte as -112, É corresponding to 144 is outside the range of a standard byte (-127 to 128). convert it to an unsigned or positive value to obtain the correct result, use the following code to convert to an unsigned value:
code :
public static int unsignedToBytes(byte b) {
    return b & 0xFF;
Java BufferedWriter(OutputStreamWriter) not detecting output closed (eg. manylines | java ... | head -3)

Java BufferedWriter(OutputStreamWriter) not detecting output closed (eg. manylines | java ... | head -3)

By : Ekta Patel
Date : March 29 2020, 07:55 AM
it helps some times System.out is a PrintStream, and PrintStream swallows exceptions. You need to call System.out.checkError() regularly.
printwriter vs outputstream vs outputstreamwriter in java

printwriter vs outputstream vs outputstreamwriter in java

By : user2445197
Date : March 29 2020, 07:55 AM
I wish this helpful for you OutputStream
OutputStream is a stream where you can work on for outputting data to any destination. It has basic functionality and allows only writing bytes to the stream.
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