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hi everyone!
I would like to know how you can put a matrix that came from c + + code in the Java console in an matrix in java. In fact, I send parameter to my c + + code from the java code, and the receipt of income is at the java console in the form of a text. so, I want to extract the matrix from the text .I need later in the code, I honestly do not know how.
below, this is my java code
OutputStream out = null;
     OutputStream err = null;
     PipedInputStream pipedInput = new PipedInputStream();
     PipedOutputStream pipedOutput = new PipedOutputStream(pipedInput);
     Program prog = new Program("C:\\Users\\abdelhalim\\Desktop\\ExempleMMKP33.exe", System.out, System.err, pipedInput);
        // TODO: Write pipedOutput from your favorite thread to send input to the program and finally close the stream.
        // I will use a PrintWriter because we are working here with text and not binary data.
        PrintWriter pw = new PrintWriter(pipedOutput);
        // println outputs platform specific newline but pw.print("5\n" ) would also convert "\n" to platform specific newline.
       res1= new int[n][m];
        for(int k=0; k<R.size();k++)
        for(int k=0; k<C.size();k++)
        for(int k=0; k<B.size();k++)
        for(int k=0; k<Dr.size();k++)
        for(int k=0; k<Dc.size();k++)
        for(int k=0; k<Db.size();k++)
        /*for(int k=0; k<n;k++)
      for(int j=0; j<m;j++)

and this is what I get in the java console:

0   0   0   0   1   0
   0   0   0   0   0   1
   0   1   0   0   0   0
   0   0   0   1   0   0
   0   0   0   0   1   0
   0   0   1   0   0   0
propagators: 24
branchers:   1
runtime:      1.735 (1735.000 ms)
solutions:    48
propagations: 1715
nodes:        153
failures:     29
restarts:     0
peak depth:   7
peak memory:  13 KB

I want to put this matrix in a java code matrix (matrix type res1 = new int [n] [m]) after the reception and I do not know how to do it ??,,
you have an idea about that?? thank you very much for your help
Richard MacCutchan 1-Nov-13 14:22pm
Read the text data and convert each field to integer and store in the matrix.
Manel1989 1-Nov-13 16:42pm
thank you very much

1 solution

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Solution 1

Read the console output as string and scan it. A space means end of integer, a new line a new row. You scans the string twice: first run to detect the dimensions and second run to read the values.

Very important: Implement robust error handling!!!

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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