Convert Double to Binary representation?

Question

I tried to convert a double to its binary representation, but using this Long.toBinaryString(Double.doubleToRawLongBits(d)) doesn\'t help, since I have large nu

Answer 1

Here is a small snippet which converts the fractional part of the double to binary format:

String convertToBinary(double number) {
    int i=1;
    String num="0.";
    double temp,noofbits=32;
    while (i<=noofbits && number>0) {
        number=number*2;
        temp=Math.floor(number);
        num+=(int)temp;
        number=number-temp;
        i++;
    }

where noofbits gives the bitsize you want the fractional part to be limited to. For the whole number part directly use the Integer.toBinaryString() along with the floor value of the double and append to the fractional binary string.