JMathIO: easy to use read/write classes for double arraysJMathIO allows to create, read, write, append your datas in:

ASCII files : org.math.io.files.ASCIIFile Binary files (big or little endian) : org.math.io.files.BinaryFile

Example Java codeimport static org.math.io.files.ASCIIFile.*;
import static org.math.io.parser.ArrayString.*;

...

double[][] b = { { 1.0, 2.0, 3.0, 4.0 }, { 11.0, 12.0, 13.0, 14.0 } };
  // write file in ASCII
  writeDoubleArray(new File("b.txt"), b);
  // read this file
  double[][] b_read = readDoubleArray(new File("b.txt"));Use itJust put jmathio.jar in your java classpath