zerin108

package mongo;

import org.bson.Document;

public class DocumentTest {
    public static void main(String[] args) {
        Document document = new Document()
                .append("str", "MongoDB, hello!");
        String str = document.getString("str");
    }

zerin108

Mongo shell is interactive javascript interpretor. Mongo shell can return previous input.

BSON is binary encoded a computer data interchange format used mainly as data storge and network transfer format in mongodb. Is based on the term json. 

Inserting Docs
Documents in mongo live inside a collection. Inside shel language we see collections as properties of database. 

findOne
method find one document that contains query argument
findOne(a, b), where a - what you want to find, b - what you want to display. example:

zerin108

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

zerin108

+86937	isset
+43159	echo
+31697	empty
+29252	substr
+26146	count
+24248	is_array
+22572	strlen
+19365	sprintf
+18090	unset
+16584	str_replace

zerin108

Культура программирования как раз основана на знаниях (но не только), и это основная ценность в сообществе разработчиков.