Comment revisions

Conversions/DecimalToBinary.java

@@ -5,7 +5,7 @@
 /**
  * This class converts a Decimal number to a Binary number
  *
- * @author Unknown
+ *
  */
 class DecimalToBinary {
 

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;

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;

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));
     }
 

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 "";

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

Maths/AbsoluteMax.java

@@ -15,7 +15,7 @@ public static void main(String[] args) {
     }
 
     /**
-     * get the value, it's absolute value is max
+     * get the value, return the absolute max value
      *
      * @param numbers contains elements
      * @return the absolute max value

Maths/AbsoluteMin.java

@@ -15,7 +15,7 @@ public static void main(String[] args) {
     }
 
     /**
-     * get the value, it's absolute value is min
+     * get the value, returns the absolute min value min
      *
      * @param numbers contains elements
      * @return the absolute min value

Maths/Factorial.java

@@ -1,25 +1,28 @@
 package Maths;
 
+//change around 'n' for different factorial results
 public class Factorial {
     public static void main(String[] args) {
         int n = 5;
         System.out.println(n + "! = " + factorial(n));
     }
 
+    //Factorial = n! = n1 * (n-1) * (n-2)*...1
+
     /**
-     * Calculate factorial
+     * Calculate factorial N
      *
      * @param n the number
      * @return the factorial of {@code n}
      */
     public static long factorial(int n) {
         if (n < 0) {
-            throw new ArithmeticException("n < 0");
+            throw new ArithmeticException("n < 0");     //Dont work with less than 0
         }
         long fac = 1;
         for (int i = 1; i <= n; ++i) {
             fac *= i;
         }
-        return fac;
+        return fac; //Return factorial
     }
 }

Maths/Pow.java

@@ -1,11 +1,12 @@
 package maths;
 
+//POWER (exponentials) Examples (a^b)
 public class Pow {
     public static void main(String[] args) {
-        assert pow(2, 0) == Math.pow(2, 0);
-        assert pow(0, 2) == Math.pow(0, 2);
-        assert pow(2, 10) == Math.pow(2, 10);
-        assert pow(10, 2) == Math.pow(10, 2);
+        assert pow(2, 0) == Math.pow(2, 0); // == 1
+        assert pow(0, 2) == Math.pow(0, 2); // == 0
+        assert pow(2, 10) == Math.pow(2, 10); // == 1024
+        assert pow(10, 2) == Math.pow(10, 2); // == 100
     }
 
     /**