Base conversion in Java
Given a number in a given base, convert it into another target base.
Examples
Input : Number = "123"
Source Base = 8
Target Base = 10
Output : 83
3 * 1 + 2 * 8 + 1 * 64 = 83
Input : Number = "110"
Source Base = 2
Target Base = 10
Output : 6
The idea is to use toString() method present in Integer wrapper class. We also use partseInt() to parse given string representation of number in a given base.
// Java program to convert one base to other public class MainClass { public static String baseConversion(String number, int sBase, int dBase) { // Parse the number with source radix // and return in specified radix(base) return Integer.toString( Integer.parseInt(number, sBase), dBase); } public static void main(String[] args) { String number = "555"; // Number int sBase = 8; // Source Base Octal int dBase = 10; // Destination Base Decimal System.out.println("Octal to Decimal: " + baseConversion(number, sBase, dBase)); dBase = 16; // Destination Base Hexadecimal System.out.println("Octal to Hex: " + baseConversion(number, sBase, dBase)); } } |
Output:
Octal to Decimal: 365 Octal to Hex: 16d
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