How to convert a String consisting of Binary Number to Hexa Decimal no in Java? -

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my string 010101010111111111101010101010101010111101010101010101010101 , large in size (more 64 characters).

i cannot use integer or long class parse methods due size limitation.

expected output 557feaaaaf55555h.

use biginteger this:

string s = "010101010111111111101010101010101010111101010101010101010101"; biginteger value = new biginteger(s, 2); system.out.println(value.tostring(16));

this shows:

557feaaaaf55555

or exact output:

system.out.println(value.tostring(16).touppercase() + "h");

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