public StringBuffer insert(int index, Object obj) {return insert(index, obj == null ? "null" : obj.toString());}

public StringBuffer insert ( int index , Object obj ) { return insert ( index , obj == null ? "null" : obj . toString ( ) ) ; }
public java.lang.StringBuffer insert(int index, object obj){return insert(index, obj == null ? "null" : obj.ToString());}
