public PrintWriter append(CharSequence csq) {if (csq == null) {csq = "null";}append(csq, 0, csq.length());return this;}
public override java.io.Writer append(java.lang.CharSequence csq){if (csq == null){csq = java.lang.CharSequenceProxy.Wrap("null");}append(csq, 0, csq.Length);return this;}