Floating Point Representation [Java]

public class FloatingPointRep {
     public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter you float (eg. 135.00, -50.65): ");
        float _f1 = sc.nextFloat();
        String _f1Bin = Integer.toBinaryString(((Float) _f1).hashCode());
        System.out.printf("The value of _f1 is %f\n", _f1);
        System.out.printf("The bin representation of _f1 is %s\n\n", padding(_f1Bin));
        //System.in.read();
    }
 
    private static String padding(String value) {
        if (value.length() < 32) {
            value = String.format("%32s", value).replace(' ', '0');
        }
        return value.substring(0, 1) + " " + value.substring(1, 9) + " " + value.substring(9, 32);
    }
}