Quick question - compare statement problem

Question

Hi all,
I am new. I tried to implement - the input should be >= 1.0 and <=4.3.
The following is my statement but no working when I input 4.3. When 4.3, show re-enter the statement.
Please help and advise how I can implement it.
Thanks
while(a < 1.0 || a > 4.3)
          System.out.println("\n a must be 1.0 <= a <= 4.3 " + "Please enter the correct a");
          System.out.print("Please enter the correct a: ");
          ans = console.readLine();
          a = Float.parseFloat(ans);

Answer 1

Try BigDecimal.
        BigDecimal a = new BigDecimal(0);
     BigDecimal min = new BigDecimal("1.0");
     BigDecimal max = new BigDecimal("4.3");
     a.setScale(10, BigDecimal.ROUND_HALF_EVEN);
     min.setScale(10, BigDecimal.ROUND_HALF_EVEN);
     max.setScale(10, BigDecimal.ROUND_HALF_EVEN);
        while(a.compareTo(min) < 0 || a.compareTo(max) > 0) {
            String ans = null;
         try {
          ans = console.readLine();
         } catch (IOException e) {
          e.printStackTrace();
         a = new BigDecimal(ans);
         a.setScale(10, BigDecimal.ROUND_HALF_EVEN);
        }Regards,