title: How do I ceil number (etc: 5 to 10)
body: <p>I have a problem with <code>Math.ceil</code> in Java, because it ceils and floors only decimal numbers. I need a function which can ceil or floor any number including an integer. For example if I have 5, I would want it to become 10 or if I have, for example 2, I would want it to become 0. </p>
  
  <p>I am pretty sure that some easy function exists for this, but I could not find it. I would be really grateful for some examples on how to do that.</p>