driver-legacy/src/main/com/mongodb/DBCollection.java
public DBCursor find(@Nullable final DBObject query, final DBCollectionFindOptions options) {
        return new DBCursor(this, query, options);
    }
public DBCursor find(@Nullable final DBObject query, final DBCollectionFindOptions options) {
        return new DBCursor(this, query, options);
    }
public DBCursor find ( @ Nullable final DBObject query , final DBCollectionFindOptions options ) { return new DBCursor ( this , query , options ) ; }
Select documents in collection and get a cursor to the selected documents.

@param query         the selection criteria using query operators. Omit the query parameter or pass an empty document to return all
documents in the collection.
@param options       the options for the find operation.
@return A cursor to the documents that match the query criteria
@mongodb.driver.manual tutorial/query-documents/ Querying
@since 3.4
Select documents in collection and get a cursor to the selected documents .