title: Check values with tolerance
body: <p>I am trying to check whether one value equals + or - 2 the other value.</p>
  
  <p>This is what i have come across.</p>
  
  <pre><code>    for (int lineNumber : errorLineList) {
          if (lineNumber == startLineNumber
                  || lineNumber == (startLineNumber + 1)
                  || lineNumber == (startLineNumber + 2)
                  || lineNumber == (startLineNumber - 1)
                  || lineNumber == (startLineNumber - 2)) {
              lineFound = true;
              break;
          }
      }
  </code></pre>
  
  <p>But here if i want the tolerance to be 5, then i have to add 10 checks.</p>
  
  <p>Is there any other elegant way to do this in java.</p>