roman numbers to numbers
//Java Implementation of Roman To Number
public class RomanToNumber {
public static int declareIntOfChar(char c)
{
int val=0;
switch(c)
{
case 'I':
val=1;
break;
case 'V':
val=5;
break;
case 'X':
val=10;
break;
case 'L' :
val=50;
break;
case 'C' :
val=100;
break;
case 'D' :
val=500;
break;
case 'M' :
val=1000;
break;
default :
val=-1;
break;
}
return val;
}
public static void main(String[] args) {
String s = "XCV";
int sum = 0,c1,c2;
for(int i=0;i<s.length();i++)
{
c1=declareIntOfChar(s.charAt(i));
if(i+1<s.length())
{
c2=declareIntOfChar(s.charAt(i+1));
if(c1<c2)
{
sum = sum + c2 - c1;
i++;
}
else
{
sum = sum + c1;
}
}
else
{
sum = sum + c1;
}
}
System.out.print(s + " = " + sum);
}
}