## Convert Roman to Integer in JavaIt is a problem frequently asked in interviews of top IT companies like ## Roman NumeralsRoman numerals are the symbolic representation of numbers. These are usually used in watch faces, music theory, etc. There are
Roman numerals are formed by joining the symbols and adding their respective values. These are usually written in largest to smallest fashion, and from left to right. However, the roman numeral for the integer 4 is not The same principle applies to the number 9, which is written as There are six instances where we required subtraction: **I**can be placed before**V**(5) and**X**to make 4 and 9.**X**can be placed before**L**(50) and**C**to make 40 and 90.**C**can be placed before**D**(500) and**M**to make 400 and 900.
## Example 1:Suppose, we have to convert the roman numeral M=1000, C=100, M=1000, X=10, C=100 M=1000 CM=1000-100 = 900 XC=100-10 = 90 Hence, M=1000, CM=900, XC=90 = Hence, Let's see another example. ## Example 2:Consider the roman numeral L=50, V=5, III=8 L+V+III = 50+5+3 = ## Algorithm- Iterate over each character of the given string of roman numerals.
- Compare the value of the current roman character with its right roman character.
- If the current value is greater than or equal to the value of the symbol to the right, add the current character's value to the total variable.
- If the current value is less than the value of the symbol to the right, subtract the current character's value from the total variable.
Let's implement the above steps in a Java program. ## Java Program to Convert Roman Numerals to Integer in Java
The corresponding Integer value is: 1155 ## ComplexityThe time and space complexity of the above approach is Let's see another solution for the same.
The corresponding Integer value is: 1915 ## ComplexityThe time complexity of the above approach is |

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