title: Java Double get all Digits after dot/comma
body: <p>it´s a simple task but i´m not able to solve it on my own..</p>
  
  <p>i got </p>
  
  <pre><code>    double digit1 = 12.1;
      double digit2 = 12.99;
  </code></pre>
  
  <p>and need a method which gives me this:</p>
  
  <pre><code>    anyMethod(digit1); //returns 10
      anyMethod(digit2); //returns 99
  </code></pre>
  
  <p>what i have is</p>
  
  <pre><code>public static void getAfterComma(double digit) {
  
      BigDecimal bd = new BigDecimal(( digit - Math.floor( digit )) * 100 );
      bd = bd.setScale(4,RoundingMode.HALF_DOWN);
      System.out.println(bd.toBigInteger()); // prints digit1=1 and digit2=99
  
  } 
  </code></pre>
  
  <p>anyway i prefer integer as the returntype..
  anybody got a quick solution/tip?</p>
  
  <p>kindly</p>