public void addChildren( AstNode first,
                             AstNode second ) {
        if (first != null) {
            this.addLastChild(first);
        }
        if (second != null) {
            this.addLastChild(second);
        }
    }
public void addChildren ( AstNode first , AstNode second ) { if ( first != null ) { this . addLastChild ( first ) ; } if ( second != null ) { this . addLastChild ( second ) ; } }
Add the supplied nodes at the end of the list of children.

@param first the first child to add
@param second the second child to add