driver-sync/src/examples/tour/QuickTourAdmin.java
public static void main(final String[] args) {
        MongoClient mongoClient;

        if (args.length == 0) {
            // connect to the local database server
            mongoClient = MongoClients.create();
        } else {
            mongoClient = MongoClients.create(args[0]);
        }

        // get handle to "mydb" database
        MongoDatabase database = mongoClient.getDatabase("mydb");

        database.drop();

        // get a handle to the "test" collection
        MongoCollection<Document> collection = database.getCollection("test");

        // drop all the data in it
        collection.drop();

        // getting a list of databases
        for (String name: mongoClient.listDatabaseNames()) {
            System.out.println(name);
        }

        // drop a database
        mongoClient.getDatabase("databaseToBeDropped").drop();

        // create a collection
        database.createCollection("cappedCollection", new CreateCollectionOptions().capped(true).sizeInBytes(0x100000));

        for (String name : database.listCollectionNames()) {
            System.out.println(name);
        }

        // drop a collection:
        collection.drop();

        // create an ascending index on the "i" field
        collection.createIndex(Indexes.ascending("i"));

        // list the indexes on the collection
        for (final Document index : collection.listIndexes()) {
            System.out.println(index.toJson());
        }

        // create a text index on the "content" field
        collection.createIndex(Indexes.text("content"));

        collection.insertOne(new Document("_id", 0).append("content", "textual content"));
        collection.insertOne(new Document("_id", 1).append("content", "additional content"));
        collection.insertOne(new Document("_id", 2).append("content", "irrelevant content"));

        // Find using the text index
        long matchCount = collection.countDocuments(text("textual content -irrelevant"));
        System.out.println("Text search matches: " + matchCount);

        // Find using the $language operator
        Bson textSearch = text("textual content -irrelevant", new TextSearchOptions().language("english"));
        matchCount = collection.countDocuments(textSearch);
        System.out.println("Text search matches (english): " + matchCount);

        // Find the highest scoring match
        Document projection = new Document("score", new Document("$meta", "textScore"));
        Document myDoc = collection.find(textSearch).projection(projection).first();
        System.out.println("Highest scoring document: " + myDoc.toJson());

        // Run a command
        Document buildInfo = database.runCommand(new Document("buildInfo", 1));
        System.out.println(buildInfo);

        // release resources
        database.drop();
        mongoClient.close();
    }
public static void main(final String[] args) {
        MongoClient mongoClient;

        if (args.length == 0) {
            // connect to the local database server
            mongoClient = MongoClients.create();
        } else {
            mongoClient = MongoClients.create(args[0]);
        }

        // get handle to "mydb" database
        MongoDatabase database = mongoClient.getDatabase("mydb");

        database.drop();

        // get a handle to the "test" collection
        MongoCollection<Document> collection = database.getCollection("test");

        // drop all the data in it
        collection.drop();

        // getting a list of databases
        for (String name: mongoClient.listDatabaseNames()) {
            System.out.println(name);
        }

        // drop a database
        mongoClient.getDatabase("databaseToBeDropped").drop();

        // create a collection
        database.createCollection("cappedCollection", new CreateCollectionOptions().capped(true).sizeInBytes(0x100000));

        for (String name : database.listCollectionNames()) {
            System.out.println(name);
        }

        // drop a collection:
        collection.drop();

        // create an ascending index on the "i" field
        collection.createIndex(Indexes.ascending("i"));

        // list the indexes on the collection
        for (final Document index : collection.listIndexes()) {
            System.out.println(index.toJson());
        }

        // create a text index on the "content" field
        collection.createIndex(Indexes.text("content"));

        collection.insertOne(new Document("_id", 0).append("content", "textual content"));
        collection.insertOne(new Document("_id", 1).append("content", "additional content"));
        collection.insertOne(new Document("_id", 2).append("content", "irrelevant content"));

        // Find using the text index
        long matchCount = collection.countDocuments(text("textual content -irrelevant"));
        System.out.println("Text search matches: " + matchCount);

        // Find using the $language operator
        Bson textSearch = text("textual content -irrelevant", new TextSearchOptions().language("english"));
        matchCount = collection.countDocuments(textSearch);
        System.out.println("Text search matches (english): " + matchCount);

        // Find the highest scoring match
        Document projection = new Document("score", new Document("$meta", "textScore"));
        Document myDoc = collection.find(textSearch).projection(projection).first();
        System.out.println("Highest scoring document: " + myDoc.toJson());

        // Run a command
        Document buildInfo = database.runCommand(new Document("buildInfo", 1));
        System.out.println(buildInfo);

        // release resources
        database.drop();
        mongoClient.close();
    }
Run this main method to see the output of this quick example.

@param args takes an optional single argument for the connection string