public StringBuilder append(CharSequence csq) {if (csq == null) {appendNull();} else {append0(csq, 0, csq.length());}return this;}

public StringBuilder append ( CharSequence csq ) { if ( csq == null ) { appendNull ( ) ; } else { append0 ( csq , 0 , csq . length ( ) ) ; } return this ; }
public java.lang.StringBuilder append(java.lang.CharSequence csq){if (csq == null){appendNull();}else{append0(csq, 0, csq.Length);}return this;}
