title: ASCII character ranges using for loop
body: <p>How do I cover the range of all letters lowercase a-z &amp; uppercase A-Z using a for loop? Currently I have:</p>
  
  <pre><code>public static boolean isJavaIdentifierStart (char c) {
  
    if (c == 'a') { //how do I cover the range of all lowercase letters with a for loop?
      return true;
      } if (c=='Z') { //how do I cover all uppercase letters with a for loop?
        return true;
      } else if (c == '_') {
        return true;
      } else if (c == '$') {
        return true;
      } else
        return false;
    }        
  }
  </code></pre>