Unfinished, possibly misunderstood

.besouro/20160915145220573/besouroEpisodes.txt

@@ -0,0 +1,177 @@
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+1473943356499 test-last 1 234 false
+1473943356500 test-last 1 234 false
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+1473946406660 regression 2 21 true
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+1473948105929 regression 1 0 true
+1473948121609 refactoring 2A 1 true

.besouro/20160915145220573/randomHeuristicEpisodes.txt

@@ -0,0 +1,47 @@
+1473941502112 test-last 1 1161 false
+1473941545272 regression 1 1 false
+1473941585725 regression 1 1 false
+1473941607877 regression 1 1 false
+1473941669907 regression 1 1 true
+1473941688720 regression 1 1 true
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+1473942077220 test-addition 1 123 false
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+1473942883604 test-last 1 22 false
+1473942927717 regression 2 16 true
+1473943089196 refactoring 2A 87 true
+1473943356499 test-last 1 234 false
+1473944194755 refactoring 2B 142 true
+1473944347693 refactoring 2A 136 true
+1473944435255 test-addition 1 67 false
+1473944496118 regression 1 1 true
+1473944752083 regression 1 2 true
+1473944781645 regression 1 1 true
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+1473945145167 regression 1 1 true
+1473945597636 refactoring 2A 2 true
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+1473945891124 regression 1 1 false
+1473945928136 test-addition 1 26 false
+1473946236574 refactoring 2A 1 false
+1473946267249 regression 1 0 true
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+1473946406660 regression 2 21 true
+1473946593012 refactoring 2A 1 false
+1473947558657 test-first 3 945 true
+1473947582115 production 1 2 true
+1473947594416 regression 1 1 false
+1473947657130 regression 1 1 true
+1473947690153 test-addition 1 16 false
+1473947864427 refactoring 2A 54 true
+1473947873736 regression 1 2 true
+1473948105929 regression 1 0 false
+1473948121609 refactoring 2A 1 true

.besouro/20160915145220573/zorroEpisodes.txt

@@ -0,0 +1,47 @@
+1473941502112 test-last 1 1161 false
+1473941545272 regression 1 43 false
+1473941585725 regression 1 40 false
+1473941607877 regression 1 22 false
+1473941669907 regression 1 62 false
+1473941688720 regression 1 18 false
+1473941757639 test-addition 2 68 false
+1473941938966 refactoring 2A 181 false
+1473942077220 test-addition 1 138 false
+1473942572177 production 3 494 false
+1473942668143 refactoring 2A 95 false
+1473942778774 refactoring 2A 110 false
+1473942883604 test-last 1 104 false
+1473942927717 regression 2 44 false
+1473943089196 refactoring 2A 161 false
+1473943356499 test-last 1 267 false
+1473944194755 refactoring 2B 838 true
+1473944347693 refactoring 2A 152 true
+1473944435255 test-addition 1 87 true
+1473944496118 regression 1 60 true
+1473944752083 regression 1 255 true
+1473944781645 regression 1 29 true
+1473944829573 regression 2 47 true
+1473945055978 refactoring 2A 226 true
+1473945081578 regression 1 25 true
+1473945136426 regression 1 54 true
+1473945145167 regression 1 8 true
+1473945597636 refactoring 2A 452 true
+1473945625185 regression 1 27 true
+1473945653999 regression 1 28 true
+1473945872535 refactoring 2A 218 true
+1473945891124 regression 1 18 true
+1473945928136 test-addition 1 37 true
+1473946236574 refactoring 2A 308 true
+1473946267249 regression 1 30 true
+1473946373135 refactoring 2A 105 true
+1473946406660 regression 2 33 true
+1473946593012 refactoring 2A 186 true
+1473947558657 test-first 3 965 true
+1473947582115 production 1 23 true
+1473947594416 regression 1 12 true
+1473947657130 regression 1 62 true
+1473947690153 test-addition 1 33 true
+1473947864427 refactoring 2A 174 true
+1473947873736 regression 1 9 true
+1473948105929 regression 1 232 true
+1473948121609 refactoring 2A 15 true

bin/.gitignore

@@ -0,0 +1,3 @@
+/StringCalculator.class
+/StringCalculatorException.class
+/StringCalculatorTest.class

src/StringCalculator.java

@@ -1,9 +1,58 @@
+//possibly misunderstood the task, unsure if it was supposed to add only one digit numbers, like I did or are numbers like 231 ok
+//not finished anyway
+
+
+
+
+import java.util.ArrayList;
+import java.util.List;
 
 public class StringCalculator {
-	public int add(String numbersStr) {
-		// Returns the sum of the numbers given in numbersStr
-
-		// not yet implemented
-		return 0;
+	private List<Integer> numbers = new ArrayList<>();
+	public int add(String numbersStr) throws StringCalculatorException{
+		if(checkIfStringContainsOnlyNumbersAndAcceptableCharacters(numbersStr) && checkIfCharacterIsANumber(numbersStr.charAt(0))) {
+			int counter = 0;
+			for(char c: numbersStr.toCharArray()) {
+				if(counter%2 == 0) {
+					if (checkIfCharacterIsANumber(c)) {
+						numbers.add(Character.getNumericValue(c));
+					}
+					else {
+						throw new StringCalculatorException("String contains too many 'break' characters in a row");
+					}
+				}
+				counter++;
+			}
+			int result = 0;
+			for(int r: numbers) {
+				result += r;
+			}
+			return result;
+		}
+		else {
+			throw new StringCalculatorException("String contains more than just numbers");
+		}
+		//
+	}
+
+	private boolean checkIfStringContainsOnlyNumbersAndAcceptableCharacters(String s) {
+		for(char c: s.toCharArray()) {
+			if(!Character.isDigit(c)) {
+				if(c == ',' || c == '\r' || c == '\n') {
+
+				}
+				else {
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	private boolean checkIfCharacterIsANumber(char c) {
+		if(Character.isDigit(c)) {
+			return true;
+		}
+		return false;
 	}
 }

src/StringCalculatorException.java

@@ -1,4 +1,8 @@
 
-public class StringCalculatorException extends Exception {
 
+public class StringCalculatorException extends Exception {
+	private static final long serialVersionUID = 1L;
+	public StringCalculatorException(String msg){
+	      super(msg);
+	}
 }