RunGopher Programming Challenge

environment.yml

name: beakerx
channels:
  - conda-forge
dependencies:
  - ipywidgets
  - beakerx

RunGopher.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "Path: C:\\Users\\HP\\Documents\\BeakerX\\\n",
      "File: RunGopherProgrammingChallenge.txt\n",
      "hat\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "aht, ath, hat, hta, "
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "abc\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "abc, acb, bac, bca, "
     ]
    },
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "Zu6\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "6Zu, 6uZ, Z6u, Zu6, "
     ]
    },
    {
     "data": {
      "text/plain": [
       "Done!"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "package com.rungopher.challenge;\n",
    "\n",
    "import java.nio.file.Files;\n",
    "import java.nio.file.Path;\n",
    "import java.nio.file.Paths;\n",
    "import java.nio.charset.Charset;\n",
    "\n",
    "import java.io.IOException;\n",
    "\n",
    "import java.util.List;\n",
    "import java.util.Arrays;\n",
    "\n",
    "String[] args = new String[] {\"C:\\\\Users\\\\HP\\\\Documents\\\\BeakerX\\\\RunGopherProgrammingChallenge.txt\"};\n",
    "String arg0 = null;\n",
    "\n",
    "if (args.length == 1) {\n",
    "    arg0 = args[0];\n",
    "} else {\n",
    "    throw new RuntimeException(\"Malformed argument: \" + arg0 + \", expecting file name with path.\");\n",
    "}\n",
    "\n",
    "int slash = arg0.lastIndexOf(\"\\\\\");\n",
    "int argLen = arg0.length();\n",
    "\n",
    "String file = null;\n",
    "String path = \"\";\n",
    "\n",
    "if (slash < 0) {\n",
    "    file = arg0;\n",
    "} else {\n",
    "    if (slash + 1 < argLen) {\n",
    "        path = arg0.substring(0, slash + 1);\n",
    "        file = arg0.substring(slash + 1);\n",
    "    } else {\n",
    "        throw new RuntimeException(\"Malformed argument: \" + arg0 + \", expecting file name with path.\");\n",
    "    }\n",
    "}\n",
    "\n",
    "System.err.println(\"Path: \" + path);\n",
    "System.err.println(\"File: \" + file);\n",
    "\n",
    "List<String> lines = Files.readAllLines(Paths.get(path, file), Charset.forName(\"UTF-8\"));\n",
    "        \n",
    "for (String line : lines) {\n",
    "    System.err.println(line);\n",
    "    \n",
    "    char[] chars = line.toCharArray();\n",
    "    \n",
    "    Arrays.sort(chars);\n",
    "    \n",
    "    char[] cpyc = chars.clone();\n",
    "        \n",
    "    System.out.print(new String(chars));\n",
    "    System.out.print(\", \");\n",
    "    \n",
    "    int n = chars.length - 1;\n",
    "    int m = n - 1;\n",
    "    for (int i = m; i >= 0; i--) {\n",
    "        System.arraycopy(cpyc, 0, chars, 0, cpyc.length);\n",
    "        \n",
    "        for (int j = i; j <= m; j++) {\n",
    "            char tmp = chars[j + 1];\n",
    "            chars[j + 1] = chars[j];\n",
    "            chars[j] = tmp;\n",
    "\n",
    "            System.out.print(new String(chars));\n",
    "            System.out.print(\", \");\n",
    "        }\n",
    "        \n",
    "        char tmp = chars[j + 1];\n",
    "        chars[j + 1] = chars[j];\n",
    "        chars[j] = tmp;\n",
    "        \n",
    "        for (int j = i + 1; j <= m; j++) {\n",
    "            char tmp = chars[j + 1];\n",
    "            chars[j + 1] = chars[j];\n",
    "            chars[j] = tmp;\n",
    "\n",
    "            System.out.print(new String(chars));\n",
    "            System.out.print(\", \");\n",
    "        }\n",
    "    }\n",
    "}\n",
    "\n",
    "\n",
    "return \"Done!\";"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Java",
   "language": "java",
   "name": "java"
  },
  "language_info": {
   "codemirror_mode": "text/x-java",
   "file_extension": ".java",
   "mimetype": "",
   "name": "Java",
   "nbconverter_exporter": "",
   "version": "1.8.0_152-release"
  },
  "toc": {
   "base_numbering": 1,
   "nav_menu": {},
   "number_sections": false,
   "sideBar": false,
   "skip_h1_title": false,
   "title_cell": "Table of Contents",
   "title_sidebar": "Contents",
   "toc_cell": false,
   "toc_position": {},
   "toc_section_display": false,
   "toc_window_display": false
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}

RunGopherProgrammingChallenge.txt

hat
abc
Zu6
come
eight