12:30 03/01/19

src/AssessmentPartFour.java

@@ -4,16 +4,11 @@ import java.io.*;
 
 public class AssessmentPartFour 
 {	
-	
-	
-		
-	
-	
 	List<String> morseCode = new ArrayList<String>();
 	
 	
 	
-	
+	//COMMENT THIS A LOT BETTER
 	
 	public int loadMorseFromFile(String filename)
 	{
@@ -43,57 +38,51 @@ public class AssessmentPartFour
 	
 	
 	
-	
+	//MOVE THE .GET INTO IT'S OWN VARIABLE.
 	
 	public String translateMorse()
 	{	
-		for(int i = 0; i < morseCode.size(); i++)
-		{
-			System.out.println(morseCode.get(i) + " " + (morseCode.get(i)).length());
-		}
-
-		String strTranslated = "strTranslated ";
+		String strTranslated = "";
 		
 		String[][] strMorseArray = 
-			{{" ", "E", "T"}, // have 1 char
-			 {"/", ".", "-"},
-			 {"A", "I", "N", "M"}, // have 2 char
-			 {".-", "..", "-.", "--"},
-			 {"D", "G", "K", "O", "R", "S", "U", "W"}, // have 3 char
-			 {"-..", "--.", "-.-", "---", ".-.", "...", "..-", ".--"},
-			 {"B", "C", "F", "H", "J", "L", "P", "Q", "V", "X", "Y", "Z"}, // have 4 char
-			 {"-...", "-.-.", "..-.", "....", ".---", ".-..", ".--.", "--.-", "..._", "-..-", "-.--", "--.."},
-			 {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0"}, // have 5 char
-			 {".----", "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.", "-----"}};
-		
-		
+				//morse-letter lookup table, ordered by morse code length
+		/* 0 */	{{" ", "E", "T"}, // have 1 char
+		/* 1 */	 {"/", ".", "-"},
+		/* 2 */	 {"A", "I", "N", "M"}, // have 2 char
+		/* 3 */	 {".-", "..", "-.", "--"},
+		/* 4 */	 {"D", "G", "K", "O", "R", "S", "U", "W"}, // have 3 char
+		/* 5 */	 {"-..", "--.", "-.-", "---", ".-.", "...", "..-", ".--"},
+		/* 6 */	 {"B", "C", "F", "H", "J", "L", "P", "Q", "V", "X", "Y", "Z"}, // have 4 char
+		/* 7 */	 {"-...", "-.-.", "..-.", "....", ".---", ".-..", ".--.", "--.-", "...-", "-..-", "-.--", "--.."},
+		/* 8 */	 {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0"}, // have 5 char
+		/* 9 */	 {".----", "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.", "-----"}};
 		
 		for(int i = 0; i < morseCode.size(); i++)
+		//loops through each morse word within list (which has been taken from file)
 		{
+			String strMorseLetter;
+			
 			int x = (((morseCode.get(i)).length()) * 2) - 1;
+			//length of the morse input, times 2, minus 1 is the x co-ordinate of morse code within the array.
 			
 			for(int y = 0; y < strMorseArray[x].length; y++)
+			//loop through to identify y co-ordinate
 			{	
-				System.out.println("something");
-				
-				System.out.println(strMorseArray[x-1][y]);
-				
 				if(strMorseArray[x][y].contains(morseCode.get(i)))
+				//contains runs fractionally faster than equals.
+				//only checks against morse code which is the same length, so ".." containing "." is not an issue.
 				{					
-					strTranslated.concat(strMorseArray[x-1][y]);
-					strMorseArray[x-1][y].concat(strTranslated);
+					strTranslated = strTranslated.concat(strMorseArray[x-1][y]);
+					//x minus one = corresponding translation of morse code within the array
+					//adding recently matched letter to translated string
 					break;
 				}
 			}	
-			
 		}
-			 //NEED TO SORT OUT LOOPS. WHY HAVE I DIVIDED THE MORSE ARRAY LIKE THIS AGAIN? WHY AREN'T MY STRINGS CONCATNATING?
-			 
-		System.out.println(strTranslated);	
-		return "";
+		strTranslated = strTranslated.toLowerCase();
+		//converting to lowercase to comply with unit test
+		System.out.println("strTranslated = " + strTranslated);	 
+		return strTranslated;
 	}
 
-	
-	
-
 }