Java: How to convert a String of Binary values to a Float and vice-versa?

Question

How do I convert the float value of 12345.12346f to a String of binary values, i.e. \"0011010101010101\", and vice-versa?

Answer 1

For signed Floats, use Long or BigInteger to parse the string. Casting by int causes the digit at first of 32 bits be intepreted as sign digit. procedure :

int intBits = Float.floatToIntBits(yourFloat); 
String binary = Integer.toBinaryString(intBits);

reverse procedure :

int intBits = new BigInteger(myString, 2).intValue();
// int intBits = (int) Long.parseLong(myString, 2);
float myFloat = Float.intBitsToFloat(intBits);