HiTutorial · moqimoqidea · Feb 3, 2020 · Nov 23, 2019 · Nov 23, 2019 · Dec 6, 2019
diff --git a/.github/workflows/update_directory_md.yml b/.github/workflows/update_directory_md.yml
@@ -0,0 +1,67 @@
+# This GitHub Action updates the DIRECTORY.md file (if needed) when doing a git push
+name: update_directory_md
+on: [push]
+jobs:
+  update_directory_md:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions/setup-python@master
+      - name: update_directory_md
+        shell: python
+        run: |
+            import os
+            from typing import Iterator
+
+            URL_BASE = "https://github.com/TheAlgorithms/Java/blob/master"
+            g_output = []
+
+
+            def good_filepaths(top_dir: str = ".") -> Iterator[str]:
+                for dirpath, dirnames, filenames in os.walk(top_dir):
+                    dirnames[:] = [d for d in dirnames if d[0] not in "._"]
+                    for filename in filenames:
+                        if os.path.splitext(filename)[1].lower() == ".java":
+                            yield os.path.join(dirpath, filename).lstrip("./")
+
+
+            def md_prefix(i):
+                return f"{i * '  '}*" if i else "\n##"
+
+
+            def print_path(old_path: str, new_path: str) -> str:
+                global g_output
+                old_parts = old_path.split(os.sep)
+                for i, new_part in enumerate(new_path.split(os.sep)):
+                    if i + 1 > len(old_parts) or old_parts[i] != new_part:
+                        if new_part:
+                            g_output.append(f"{md_prefix(i)} {new_part.replace('_', ' ')}")
+                return new_path
+
+
+            def build_directory_md(top_dir: str = ".") -> str:
+                global g_output
+                old_path = ""
+                for filepath in sorted(good_filepaths(), key=str.lower):
+                    filepath, filename = os.path.split(filepath)
+                    if filepath != old_path:
+                        old_path = print_path(old_path, filepath)
+                    indent = (filepath.count(os.sep) + 1) if filepath else 0
+                    url = "/".join((URL_BASE, filepath, filename)).replace(" ", "%20")
+                    filename = os.path.splitext(filename.replace("_", " "))[0]
+                    g_output.append(f"{md_prefix(indent)} [{filename}]({url})")
+                return "\n".join(g_output)
+
+
+            with open("DIRECTORY.md", "w") as out_file:
+                out_file.write(build_directory_md(".") + "\n")
+
+      - name: Update DIRECTORY.md
+        run: |
+          cat DIRECTORY.md
+          git config --global user.name github-actions
+          git config --global user.email '${GITHUB_ACTOR}@users.noreply.github.com'
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/$GITHUB_REPOSITORY
+          git add DIRECTORY.md
+          git commit -am "updating DIRECTORY.md" ||  true
+          git push --force origin HEAD:$GITHUB_REF || true
diff --git a/Conversions/AnyBaseToAnyBase.java b/Conversions/AnyBaseToAnyBase.java
@@ -52,6 +52,7 @@ public static void main(String[] args) {
             }
         }
         System.out.println(base2base(n, b1, b2));
+        in.close();
     }
 
     /**

diff --git a/Conversions/AnytoAny.java b/Conversions/AnytoAny.java
@@ -24,6 +24,7 @@ public static void main(String[] args) {
             dec /= db;
         }
         System.out.println(dn);
+        scn.close();
     }
 
 }
diff --git a/Conversions/DecimalToBinary.java b/Conversions/DecimalToBinary.java
@@ -5,7 +5,7 @@
 /**
  * This class converts a Decimal number to a Binary number
  *
- * @author Unknown
+ *
  */
 class DecimalToBinary {
 
@@ -53,6 +53,7 @@ public static void bitwiseConversion() {
             n >>= 1;
         }
         System.out.println("\tBinary number: " + b);
+        input.close();
     }
 
 }
diff --git a/Conversions/DecimalToHexaDecimal.java b/Conversions/DecimalToHexaDecimal.java
@@ -1,5 +1,6 @@
 package Conversions;
 
+//hex = [0 - 9] -> [A - F]
 class DecimalToHexaDecimal {
 	private static final int sizeOfIntInHalfBytes = 8;
 	private static final int numberOfBitsInAHalfByte = 4;

diff --git a/Conversions/DecimalToOctal.java b/Conversions/DecimalToOctal.java
@@ -5,14 +5,16 @@
 /**
  * This class converts Decimal numbers to Octal Numbers
  *
- * @author Unknown
+ *
  */
 public class DecimalToOctal {
     /**
      * Main Method
      *
      * @param args Command line Arguments
      */
+
+    //enter in a decimal value to get Octal output
     public static void main(String[] args) {
         Scanner sc = new Scanner(System.in);
         int n, k, d, s = 0, c = 0;

diff --git a/Conversions/HexToOct.java b/Conversions/HexToOct.java
@@ -64,7 +64,6 @@ public static void main(String args[]) {
         // convert decimal to octal
         octalnum = decimal2octal(decnum);
         System.out.println("Number in octal: " + octalnum);
-
-
+        scan.close();
     }
 }
diff --git a/Conversions/HexaDecimalToBinary.java b/Conversions/HexaDecimalToBinary.java
@@ -1,5 +1,7 @@
 package Conversions;
 
+//Hex [0-9],[A-F] -> Binary [0,1]
+
 public class HexaDecimalToBinary {
 
     private final int LONG_BITS = 8;
@@ -9,7 +11,7 @@ public void convert(String numHex) {
         int conHex = Integer.parseInt(numHex, 16);
         // Hex a Binary:
         String binary = Integer.toBinaryString(conHex);
-        // Presentation:
+        // Output:
         System.out.println(numHex + " = " + completeDigits(binary));
     }
 

diff --git a/Conversions/HexaDecimalToDecimal.java b/Conversions/HexaDecimalToDecimal.java
@@ -34,7 +34,7 @@ public static void main(String args[]) {
         and it returns the decimal form in the variable dec_output.
         */
         System.out.println("Number in Decimal: " + dec_output);
-
+        scan.close();
 
     }
 }
diff --git a/Conversions/IntegerToRoman.java b/Conversions/IntegerToRoman.java
@@ -1,9 +1,29 @@
 package Conversions;
 
+/**
+ * Converting Integers into Roman Numerals
+ *
+ *('I', 1);
+ *('IV',4);
+ *('V', 5);
+ *('IV',9);
+ *('X', 10);
+ *('XL',40;
+ *('L', 50);
+ *('XC',90);
+ *('C', 100);
+ *('D', 500);
+ *('M', 1000);
+ *
+ */
+
+
 public class IntegerToRoman {
     private static int[] allArabianRomanNumbers = new int[]{1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
     private static String[] allRomanNumbers = new String[]{"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};
 
+    //Value must be > 0
+
     public static String integerToRoman(int num) {
         if (num <= 0) {
             return "";

diff --git a/Conversions/OctalToHexadecimal.java b/Conversions/OctalToHexadecimal.java
@@ -59,6 +59,7 @@ public static void main(String args[]) {
         // Pass the decimla number to function and get converted Hex form of the number
         String hex = DecimalToHex(decimal);
         System.out.println("The Hexadecimal equivalant is: " + hex);
+        input.close();
     }
 }
 
diff --git a/Conversions/RomanToInteger.java b/Conversions/RomanToInteger.java
@@ -13,6 +13,7 @@ public class RomanToInteger {
         put('D', 500);
         put('M', 1000);
     }};
+    //Roman Number = Roman Numerals
 
     /**
      * This function convert Roman number into Integer
-Original file line number
+Diff line change
@@ Expand Up / @@ -52,6 +52,7 @@ public static void main(String[] args) { @@
                 }
             }
             System.out.println(base2base(n, b1, b2));
+            in.close();
         }
         /**
@@ Expand Down @@