e.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;value,
                <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;charset)</pre>
<div class="block">Set a parameter. If this parameter already exists, it is
 replaced by this new value.  If the
 <code>mail.mime.encodeparameters</code> System property
 is true, and the parameter value is n