Assignment Finished

src/RomanNumerals.java

@@ -2,7 +2,174 @@
 public class RomanNumerals {
 	public int convertToInteger(String romanNum) {
 		// To be Implemented
-		return 0;
 
+		int resultOfRomanToInt = 0;
+
+		boolean foundIII = romanNum.contains("III");
+
+		if(foundIII) {
+
+			resultOfRomanToInt += 3;
+
+		}else {
+
+			boolean foundII = romanNum.contains("II");
+
+			if(foundII) {
+
+				resultOfRomanToInt += 2;
+
+			}else {
+				boolean foundIV = romanNum.contains("IV");
+
+				if(foundIV) {
+
+					resultOfRomanToInt += 4;
+
+				}else {
+					boolean foundIX = romanNum.contains("IX");
+
+					if(foundIX) {
+
+						resultOfRomanToInt += 9;
+
+					}else {
+						boolean foundI = romanNum.contains("I");
+
+						if(foundI) {
+
+							resultOfRomanToInt += 1;
+
+						}
+					}
+				}
+			}
+		}
+
+		boolean foundIX = romanNum.contains("IX");
+		boolean foundXC = romanNum.contains("XC");
+
+
+		if(!foundIX && !foundXC) {
+
+			boolean foundXL = romanNum.contains("XL");
+			if(foundXL) {
+
+				resultOfRomanToInt += 40;
+			}else {
+
+				boolean foundXXX = romanNum.contains("XXX");
+				if(foundXXX) {
+
+					resultOfRomanToInt += 30;
+				}else {
+
+					boolean foundXX = romanNum.contains("XX");
+					if(foundXX) {
+
+						resultOfRomanToInt += 20;
+					}else {
+						boolean foundX = romanNum.contains("X");
+						if(foundX) {
+
+							resultOfRomanToInt += 10;
+						}
+					}
+				}
+			}	
+		}
+
+
+		boolean foundXL = romanNum.contains("XL");
+
+
+		if(!foundXL) {
+			boolean foundL = romanNum.contains("L");
+			if(foundL) {
+
+				resultOfRomanToInt += 50;
+			}
+
+		}
+
+		boolean foundCD = romanNum.contains("CD");
+		boolean foundDC1 = romanNum.contains("DC");
+		boolean foundCM = romanNum.contains("CM");
+		if(!foundCD && !foundDC1 && !foundCM) {
+			boolean foundXC1 = romanNum.contains("XC");
+			if(foundXC1) {
+
+				resultOfRomanToInt += 90;
+			}else {
+
+				boolean foundCCC = romanNum.contains("CCC");
+				if(foundCCC) {
+
+					resultOfRomanToInt += 300;
+				}else {
+
+					boolean foundCC = romanNum.contains("CC");
+					if(foundCC) {
+
+						resultOfRomanToInt += 200;
+					}else {
+						boolean foundC = romanNum.contains("C");
+						if(foundC) {
+
+							resultOfRomanToInt += 100;
+						}
+
+					}
+				}
+			}
+		}		
+
+		boolean foundXC1 = romanNum.contains("CD");
+		if(foundXC1) {
+
+			resultOfRomanToInt += 400;
+		}else {
+
+			boolean foundDCCC = romanNum.contains("DCCC");
+			if(foundDCCC) {
+
+				resultOfRomanToInt += 800;
+			}else {
+
+				boolean foundDCC = romanNum.contains("DCC");
+				if(foundDCC) {
+
+					resultOfRomanToInt += 700;
+				}else {
+					boolean foundDC = romanNum.contains("DC");
+					if(foundDC) {
+
+						resultOfRomanToInt += 600;
+					}else {
+						boolean foundD = romanNum.contains("D");
+						if(foundD) {
+
+							resultOfRomanToInt += 500;
+						}
+					}
+				}
+			}
+		}
+
+		boolean foundCM1 = romanNum.contains("CM");
+		if(foundCM1) {
+
+			resultOfRomanToInt += 900;
+		}else {
+			for(int i = 0; i < romanNum.length(); i++) {
+
+				if(romanNum.charAt(i) == 'M') {
+					resultOfRomanToInt += 1000;  
+				}
+			}
+
+		}
+
+		return resultOfRomanToInt;
 	}
 }

tests/TestRomanNumerals.java

@@ -4,9 +4,65 @@
 
 public class TestRomanNumerals {
 
+	private RomanNumerals romanNumerals;
 	@Test
 	public void test() {
-		fail("Not yet implemented");
+
+		romanNumerals = new RomanNumerals();
+
+		//Before implementation of converToInteger of RomanNumerals
+		int actual = romanNumerals.convertToInteger("X");
+		int expected = 10;
+		assertEquals(expected, actual);
+
+		int actual1 = romanNumerals.convertToInteger("XX");
+		int expected1 = 20;
+		assertEquals(expected1, actual1);
+
+		assertEquals(3 , romanNumerals.convertToInteger("III"));
+
+		assertEquals(2 , romanNumerals.convertToInteger("II"));
+
+		assertEquals(1 , romanNumerals.convertToInteger("I"));
+
+		assertEquals(4 , romanNumerals.convertToInteger("IV"));
+
+		assertEquals(9 , romanNumerals.convertToInteger("IX"));
+
+		assertEquals(10 , romanNumerals.convertToInteger("X"));
+
+		assertEquals(20 , romanNumerals.convertToInteger("XX"));
+
+		assertEquals(30 , romanNumerals.convertToInteger("XXX"));
+
+		assertEquals(40 , romanNumerals.convertToInteger("XL"));
+
+		assertEquals(50 , romanNumerals.convertToInteger("L"));
+
+		assertEquals(60 , romanNumerals.convertToInteger("LX"));
+		assertEquals(70 , romanNumerals.convertToInteger("LXX"));
+		assertEquals(80 , romanNumerals.convertToInteger("LXXX"));
+
+		assertEquals(90 , romanNumerals.convertToInteger("XC"));
+		assertEquals(100 , romanNumerals.convertToInteger("C"));
+		assertEquals(200 , romanNumerals.convertToInteger("CC"));
+		assertEquals(300 , romanNumerals.convertToInteger("CCC"));
+
+		assertEquals(400 , romanNumerals.convertToInteger("CD"));
+		assertEquals(500 , romanNumerals.convertToInteger("D"));
+		assertEquals(600 , romanNumerals.convertToInteger("DC"));
+		assertEquals(700 , romanNumerals.convertToInteger("DCC"));
+		assertEquals(800 , romanNumerals.convertToInteger("DCCC"));
+		assertEquals(900 , romanNumerals.convertToInteger("CM"));
+
+		assertEquals(900 , romanNumerals.convertToInteger("CM"));
+
+		assertEquals(1000 , romanNumerals.convertToInteger("M"));
+
+		assertEquals(2014 , romanNumerals.convertToInteger(" MMXIV"));
+
+		assertEquals(1984  , romanNumerals.convertToInteger("MCMLXXXIV"));
+
 	}
 
 }