title: Java - regex to get value from first number
body: <p>I have the following requirement.<br>
  I have a String <code>"BL req 12345/67890"</code>, "<code>BL/1234/67890"</code>  </p>
  
  <p>I need to get <code>"12345/67890"</code>, <code>"1234/67890"</code><br>
  To extract value from first number    </p>
  
  <p>Can anyone please share the regex for this scenario using java?</p>