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javauuidbiginteger

Convert String UUID to BigInteger in Java

I am trying to convert UUID which is coming as string to Big Integer but it's failing every time with Number Format exception as it need String Decimal as parameter. Is there any way we can achieve this.

String x = "6CFAFD0DA976088FE05400144FFB4B37";

I tried with radix also but output is different.

BigInteger big = new BigInteger(x, 0);

System.out.println(big);

Any help is appreciated, TIA.

Solution

  • You are supposed to be using radix 16 as your string has alphanumeric values from 0-9 and A-F, set value 16 in radix as you have hexadecimal string.

    String x = "6CFAFD0DA976088FE05400144FFB4B37";
BigInteger big = new BigInteger(x, 16);
System.out.println(big);

    OUTPUT

    144859830291446118078300087367740640055