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Project Finished #12

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8d48c63
Project Finished
Sep 30, 2016
0711759
Update RomanNumerals.java
dbb12 Sep 30, 2016
42e4cae
Update TestRomanNumerals.java
dbb12 Sep 30, 2016
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40 changes: 35 additions & 5 deletions src/RomanNumerals.java
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Original file line number Diff line number Diff line change
@@ -1,8 +1,38 @@

import java.util.HashMap;
public class RomanNumerals {
public int convertToInteger(String romanNum) {
// To be Implemented
return 0;

public int convertToInteger(String romanNum) throws Exception {
String[] str = new String[6];
str[0] = "VV"; str[0] = "LL"; str[0] = "DD"; str[0] = "IIII"; str[0] = "XXXX"; str[0] = "CCCC";
int i=0;
for( i=0 ; i<6 ; i++)
{
if( romanNum.contains(str[i]))
throw new ContainSuccessive_1_Number();
}
HashMap<String,Integer> hashmap = new HashMap<String,Integer>();
hashmap.put("I", 1); hashmap.put("V", 5); hashmap.put("X", 10); hashmap.put("L", 50);
hashmap.put("C", 100); hashmap.put("D", 500); hashmap.put("M", 1000); hashmap.put("IV", 4);
hashmap.put("IX", 9); hashmap.put("XL", 40); hashmap.put("XC", 90); hashmap.put("CD", 400); hashmap.put("CM", 900);
int result = 0;
int index = 0;
while( index<romanNum.length() )
{
if( !hashmap.containsKey(romanNum.substring(index,index+1)) )
throw new ContainOtherCharacterException();
if( index==romanNum.length()-1 )
{ result += hashmap.get(romanNum.substring(index,romanNum.length())); break; }
if( hashmap.containsKey(romanNum.substring(index,index+2)) )
{ result += hashmap.get(romanNum.subSequence(index, index+2)); index +=2; }
else
{ result += hashmap.get(romanNum.substring(index,index+1)); index++; }
}
return result;
}
class ContainOtherCharacterException extends Exception{
public ContainOtherCharacterException(){}
}

class ContainSuccessive_1_Number extends Exception{
public ContainSuccessive_1_Number(){}
}
}
206 changes: 203 additions & 3 deletions tests/TestRomanNumerals.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,208 @@
public class TestRomanNumerals {

@Test
public void test() {
fail("Not yet implemented");
public void test_I_1() throws Exception {
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("I");
assertEquals(1,result);
}

@Test
public void test_II_2() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("II");
assertEquals(2,result);
}
@Test
public void test_III_3() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("III");
assertEquals(3,result);
}
@Test
public void test_IV_4() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("IV");
assertEquals(4,result);
}
@Test
public void test_V_5() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("V");
assertEquals(5,result);
}
@Test
public void test_VI_6() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("VI");
assertEquals(6,result);
}
@Test
public void test_VII_7() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("VII");
assertEquals(7,result);
}
@Test
public void test_VIII_8() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("VIII");
assertEquals(8,result);
}
@Test
public void test_IX_9() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("IX");
assertEquals(9,result);
}
@Test
public void test_X_10() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("X");
assertEquals(10,result);
}
@Test
public void test_XI_11() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("XI");
assertEquals(11,result);
}
@Test
public void test_XX_20() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("XX");
assertEquals(20,result);
}
@Test
public void test_XXX_30() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("XXX");
assertEquals(30,result);
}

@Test
public void test_XL_40() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("XL");
assertEquals(40,result);
}

@Test
public void test_L_50() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("L");
assertEquals(50,result);
}

@Test
public void test_LX_60() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("LX");
assertEquals(60,result);
}

@Test
public void test_LXX_70() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("LXX");
assertEquals(70,result);
}

@Test
public void test_LXXX_80() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("LXXX");
assertEquals(80,result);
}

@Test
public void test_XC_90() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("XC");
assertEquals(90,result);
}

@Test
public void test_C_100() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("C");
assertEquals(100,result);
}

@Test
public void test_CC_200() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("CC");
assertEquals(200,result);
}

@Test
public void test_CCC_300() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("CCC");
assertEquals(300,result);
}

@Test
public void test_CD_400() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("CD");
assertEquals(400,result);
}

@Test
public void test_D_500() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("D");
assertEquals(500,result);
}

@Test
public void test_DC_600() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("DC");
assertEquals(600,result);
}

@Test
public void test_DCC_700() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("DCC");
assertEquals(700,result);
}

@Test
public void test_DCCC_800() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("DCCC");
assertEquals(800,result);
}

@Test
public void test_CM_900() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("CM");
assertEquals(900,result);
}

@Test
public void test_M_1000() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("M");
assertEquals(1000,result);
}

@Test
public void test_MCMLXXXIV_1984() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("MCMLXXXIV");
assertEquals(1984,result);
}

@Test
public void test_MMXIV_2014() throws Exception{
RomanNumerals RNs = new RomanNumerals();
int result = RNs.convertToInteger("MMXIV");
assertEquals(2014,result);
}

}