Here you can find the source of MatrixToFile(double[][] matrix, String path)
public static void MatrixToFile(double[][] matrix, String path) throws Exception
//package com.java2s; //License from project: Open Source License import java.io.*; public class Main { public static void MatrixToFile(double[][] matrix, String path) throws Exception { FileWriter f = new FileWriter(new File(path)); for (int j = 0; j < matrix.length; j++) { if (j > 0) { f.write("\n"); }/* w ww. j a v a 2s. c o m*/ for (int i = 0; i < matrix[0].length; i++) { if (i > 0) { f.write(","); } f.write(String.valueOf(matrix[j][i])); } } int rows = matrix.length; int cols = matrix[0].length; System.out.println("util.MatrixToFile: " + rows + "x" + cols + " -> " + path); f.flush(); f.close(); } }