public static void main(final String[] args) throws InterruptedException {
        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");


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

        // drop all the data in it
        final CountDownLatch dropLatch = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch.countDown();
            }
        });
        dropLatch.await();

        // make a document and insert it
        Document doc = new Document("name", "MongoDB")
                .append("type", "database")
                .append("count", 1)
                .append("info", new Document("x", 203).append("y", 102));

        collection.insertOne(doc, new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                System.out.println("Inserted!");
            }
        });

        // get it (since it's the only one in there since we dropped the rest earlier on)
        collection.find().first(new SingleResultCallback<Document>() {
            @Override
            public void onResult(final Document document, final Throwable t) {
                System.out.println(document.toJson());
            }
        });

        // now, lets add lots of little documents to the collection so we can explore queries and cursors
        List<Document> documents = new ArrayList<Document>();
        for (int i = 0; i < 100; i++) {
            documents.add(new Document("i", i));
        }

        final CountDownLatch countLatch = new CountDownLatch(1);
        collection.insertMany(documents, new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                collection.countDocuments(new SingleResultCallback<Long>() {
                    @Override
                    public void onResult(final Long count, final Throwable t) {
                        System.out.println("total # of documents after inserting 100 small ones (should be 101) " + count);
                        countLatch.countDown();
                    }
                });
            }
        });
        countLatch.await();

        // find first
        SingleResultCallback<Document> printDocument = new SingleResultCallback<Document>() {
            @Override
            public void onResult(final Document document, final Throwable t) {
                System.out.println(document.toJson());
            }
        };
        collection.find().first(printDocument);

        // lets get all the documents in the collection and print them out
        Block<Document> printDocumentBlock = new Block<Document>() {
            @Override
            public void apply(final Document document) {
                System.out.println(document.toJson());
            }
        };
        SingleResultCallback<Void> callbackWhenFinished = new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                System.out.println("Operation Finished!");
            }
        };

        collection.find().forEach(printDocumentBlock, callbackWhenFinished);

        // Query Filters
        // now use a query to get 1 document out
        collection.find(eq("i", 71)).first(printDocument);

        // now use a range query to get a larger subset
        collection.find(gt("i", 50)).forEach(printDocumentBlock, callbackWhenFinished);

        // range query with multiple constraints
        collection.find(and(gt("i", 50), lte("i", 100))).forEach(printDocumentBlock, callbackWhenFinished);

        // Sorting
        collection.find(exists("i")).sort(descending("i")).first(printDocument);

        // Projection
        collection.find().projection(excludeId()).first(printDocument);

        // Aggregation
        collection.aggregate(asList(
            match(gt("i", 0)),
            project(Document.parse("{ITimes10: {$multiply: ['$i', 10]}}")))
        ).forEach(printDocumentBlock, callbackWhenFinished);

        collection.aggregate(singletonList(group(null, sum("total", "$i")))).first(printDocument);

        // Update One
        collection.updateOne(eq("i", 10), set("i", 110),
                new SingleResultCallback<UpdateResult>() {
                    @Override
                    public void onResult(final UpdateResult result, final Throwable t) {
                        System.out.println(result.getModifiedCount());
                    }
                });

        // Update Many
        collection.updateMany(lt("i", 100), inc("i", 100),
                new SingleResultCallback<UpdateResult>() {
                    @Override
                    public void onResult(final UpdateResult result, final Throwable t) {
                        System.out.println(result.getModifiedCount());
                    }
                });

        // Delete One
        collection.deleteOne(eq("i", 110), new SingleResultCallback<DeleteResult>() {
            @Override
            public void onResult(final DeleteResult result, final Throwable t) {
                System.out.println(result.getDeletedCount());
            }
        });

        // Delete Many
        collection.deleteMany(gte("i", 100), new SingleResultCallback<DeleteResult>() {
            @Override
            public void onResult(final DeleteResult result, final Throwable t) {
                System.out.println(result.getDeletedCount());
            }
        });

        final CountDownLatch dropLatch2 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch2.countDown();
            }
        });
        dropLatch2.await();

        // ordered bulk writes
        List<WriteModel<Document>> writes = new ArrayList<WriteModel<Document>>();
        writes.add(new InsertOneModel<Document>(new Document("_id", 4)));
        writes.add(new InsertOneModel<Document>(new Document("_id", 5)));
        writes.add(new InsertOneModel<Document>(new Document("_id", 6)));
        writes.add(new UpdateOneModel<Document>(new Document("_id", 1), new Document("$set", new Document("x", 2))));
        writes.add(new DeleteOneModel<Document>(new Document("_id", 2)));
        writes.add(new ReplaceOneModel<Document>(new Document("_id", 3), new Document("_id", 3).append("x", 4)));

        SingleResultCallback<BulkWriteResult> printBatchResult = new SingleResultCallback<BulkWriteResult>() {
            @Override
            public void onResult(final BulkWriteResult result, final Throwable t) {
                System.out.println(result);
            }
        };
        collection.bulkWrite(writes, printBatchResult);


        final CountDownLatch dropLatch3 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch3.countDown();
            }
        });
        dropLatch3.await();

        collection.bulkWrite(writes, new BulkWriteOptions().ordered(false), printBatchResult);
        collection.find().forEach(printDocumentBlock, callbackWhenFinished);

        // Clean up
        final CountDownLatch dropLatch4 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch4.countDown();
            }
        });
        dropLatch4.await();

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

        if (args.length == 0) {
            
            mongoClient = MongoClients.create();
        } else {
            mongoClient = MongoClients.create(args[0]);
        }

        
        MongoDatabase database = mongoClient.getDatabase("mydb");


        
        final MongoCollection<Document> collection = database.getCollection("test");

        
        final CountDownLatch dropLatch = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch.countDown();
            }
        });
        dropLatch.await();

        
        Document doc = new Document("name", "MongoDB")
                .append("type", "database")
                .append("count", 1)
                .append("info", new Document("x", 203).append("y", 102));

        collection.insertOne(doc, new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                System.out.println("Inserted!");
            }
        });

        
        collection.find().first(new SingleResultCallback<Document>() {
            @Override
            public void onResult(final Document document, final Throwable t) {
                System.out.println(document.toJson());
            }
        });

        
        List<Document> documents = new ArrayList<Document>();
        for (int i = 0; i < 100; i++) {
            documents.add(new Document("i", i));
        }

        final CountDownLatch countLatch = new CountDownLatch(1);
        collection.insertMany(documents, new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                collection.countDocuments(new SingleResultCallback<Long>() {
                    @Override
                    public void onResult(final Long count, final Throwable t) {
                        System.out.println("total # of documents after inserting 100 small ones (should be 101) " + count);
                        countLatch.countDown();
                    }
                });
            }
        });
        countLatch.await();

        
        SingleResultCallback<Document> printDocument = new SingleResultCallback<Document>() {
            @Override
            public void onResult(final Document document, final Throwable t) {
                System.out.println(document.toJson());
            }
        };
        collection.find().first(printDocument);

        
        Block<Document> printDocumentBlock = new Block<Document>() {
            @Override
            public void apply(final Document document) {
                System.out.println(document.toJson());
            }
        };
        SingleResultCallback<Void> callbackWhenFinished = new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                System.out.println("Operation Finished!");
            }
        };

        collection.find().forEach(printDocumentBlock, callbackWhenFinished);

        
        
        collection.find(eq("i", 71)).first(printDocument);

        
        collection.find(gt("i", 50)).forEach(printDocumentBlock, callbackWhenFinished);

        
        collection.find(and(gt("i", 50), lte("i", 100))).forEach(printDocumentBlock, callbackWhenFinished);

        
        collection.find(exists("i")).sort(descending("i")).first(printDocument);

        
        collection.find().projection(excludeId()).first(printDocument);

        
        collection.aggregate(asList(
            match(gt("i", 0)),
            project(Document.parse("{ITimes10: {$multiply: ['$i', 10]}}")))
        ).forEach(printDocumentBlock, callbackWhenFinished);

        collection.aggregate(singletonList(group(null, sum("total", "$i")))).first(printDocument);

        
        collection.updateOne(eq("i", 10), set("i", 110),
                new SingleResultCallback<UpdateResult>() {
                    @Override
                    public void onResult(final UpdateResult result, final Throwable t) {
                        System.out.println(result.getModifiedCount());
                    }
                });

        
        collection.updateMany(lt("i", 100), inc("i", 100),
                new SingleResultCallback<UpdateResult>() {
                    @Override
                    public void onResult(final UpdateResult result, final Throwable t) {
                        System.out.println(result.getModifiedCount());
                    }
                });

        
        collection.deleteOne(eq("i", 110), new SingleResultCallback<DeleteResult>() {
            @Override
            public void onResult(final DeleteResult result, final Throwable t) {
                System.out.println(result.getDeletedCount());
            }
        });

        
        collection.deleteMany(gte("i", 100), new SingleResultCallback<DeleteResult>() {
            @Override
            public void onResult(final DeleteResult result, final Throwable t) {
                System.out.println(result.getDeletedCount());
            }
        });

        final CountDownLatch dropLatch2 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch2.countDown();
            }
        });
        dropLatch2.await();

        
        List<WriteModel<Document>> writes = new ArrayList<WriteModel<Document>>();
        writes.add(new InsertOneModel<Document>(new Document("_id", 4)));
        writes.add(new InsertOneModel<Document>(new Document("_id", 5)));
        writes.add(new InsertOneModel<Document>(new Document("_id", 6)));
        writes.add(new UpdateOneModel<Document>(new Document("_id", 1), new Document("$set", new Document("x", 2))));
        writes.add(new DeleteOneModel<Document>(new Document("_id", 2)));
        writes.add(new ReplaceOneModel<Document>(new Document("_id", 3), new Document("_id", 3).append("x", 4)));

        SingleResultCallback<BulkWriteResult> printBatchResult = new SingleResultCallback<BulkWriteResult>() {
            @Override
            public void onResult(final BulkWriteResult result, final Throwable t) {
                System.out.println(result);
            }
        };
        collection.bulkWrite(writes, printBatchResult);


        final CountDownLatch dropLatch3 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch3.countDown();
            }
        });
        dropLatch3.await();

        collection.bulkWrite(writes, new BulkWriteOptions().ordered(false), printBatchResult);
        collection.find().forEach(printDocumentBlock, callbackWhenFinished);

        
        final CountDownLatch dropLatch4 = new CountDownLatch(1);
        collection.drop(new SingleResultCallback<Void>() {
            @Override
            public void onResult(final Void result, final Throwable t) {
                dropLatch4.countDown();
            }
        });
        dropLatch4.await();

        
        mongoClient.close();
    }
public static void main ( final String [ ] args ) throws InterruptedException { 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" ) ; // get a handle to the "test" collection final MongoCollection < Document > collection = database . getCollection ( "test" ) ; // drop all the data in it final CountDownLatch dropLatch = new CountDownLatch ( 1 ) ; collection . drop ( new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { dropLatch . countDown ( ) ; } } ) ; dropLatch . await ( ) ; // make a document and insert it Document doc = new Document ( "name" , "MongoDB" ) . append ( "type" , "database" ) . append ( "count" , 1 ) . append ( "info" , new Document ( "x" , 203 ) . append ( "y" , 102 ) ) ; collection . insertOne ( doc , new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { System . out . println ( "Inserted!" ) ; } } ) ; // get it (since it's the only one in there since we dropped the rest earlier on) collection . find ( ) . first ( new SingleResultCallback < Document > ( ) { @ Override public void onResult ( final Document document , final Throwable t ) { System . out . println ( document . toJson ( ) ) ; } } ) ; // now, lets add lots of little documents to the collection so we can explore queries and cursors List < Document > documents = new ArrayList < Document > ( ) ; for ( int i = 0 ; i < 100 ; i ++ ) { documents . add ( new Document ( "i" , i ) ) ; } final CountDownLatch countLatch = new CountDownLatch ( 1 ) ; collection . insertMany ( documents , new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { collection . countDocuments ( new SingleResultCallback < Long > ( ) { @ Override public void onResult ( final Long count , final Throwable t ) { System . out . println ( "total # of documents after inserting 100 small ones (should be 101) " + count ) ; countLatch . countDown ( ) ; } } ) ; } } ) ; countLatch . await ( ) ; // find first SingleResultCallback < Document > printDocument = new SingleResultCallback < Document > ( ) { @ Override public void onResult ( final Document document , final Throwable t ) { System . out . println ( document . toJson ( ) ) ; } } ; collection . find ( ) . first ( printDocument ) ; // lets get all the documents in the collection and print them out Block < Document > printDocumentBlock = new Block < Document > ( ) { @ Override public void apply ( final Document document ) { System . out . println ( document . toJson ( ) ) ; } } ; SingleResultCallback < Void > callbackWhenFinished = new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { System . out . println ( "Operation Finished!" ) ; } } ; collection . find ( ) . forEach ( printDocumentBlock , callbackWhenFinished ) ; // Query Filters // now use a query to get 1 document out collection . find ( eq ( "i" , 71 ) ) . first ( printDocument ) ; // now use a range query to get a larger subset collection . find ( gt ( "i" , 50 ) ) . forEach ( printDocumentBlock , callbackWhenFinished ) ; // range query with multiple constraints collection . find ( and ( gt ( "i" , 50 ) , lte ( "i" , 100 ) ) ) . forEach ( printDocumentBlock , callbackWhenFinished ) ; // Sorting collection . find ( exists ( "i" ) ) . sort ( descending ( "i" ) ) . first ( printDocument ) ; // Projection collection . find ( ) . projection ( excludeId ( ) ) . first ( printDocument ) ; // Aggregation collection . aggregate ( asList ( match ( gt ( "i" , 0 ) ) , project ( Document . parse ( "{ITimes10: {$multiply: ['$i', 10]}}" ) ) ) ) . forEach ( printDocumentBlock , callbackWhenFinished ) ; collection . aggregate ( singletonList ( group ( null , sum ( "total" , "$i" ) ) ) ) . first ( printDocument ) ; // Update One collection . updateOne ( eq ( "i" , 10 ) , set ( "i" , 110 ) , new SingleResultCallback < UpdateResult > ( ) { @ Override public void onResult ( final UpdateResult result , final Throwable t ) { System . out . println ( result . getModifiedCount ( ) ) ; } } ) ; // Update Many collection . updateMany ( lt ( "i" , 100 ) , inc ( "i" , 100 ) , new SingleResultCallback < UpdateResult > ( ) { @ Override public void onResult ( final UpdateResult result , final Throwable t ) { System . out . println ( result . getModifiedCount ( ) ) ; } } ) ; // Delete One collection . deleteOne ( eq ( "i" , 110 ) , new SingleResultCallback < DeleteResult > ( ) { @ Override public void onResult ( final DeleteResult result , final Throwable t ) { System . out . println ( result . getDeletedCount ( ) ) ; } } ) ; // Delete Many collection . deleteMany ( gte ( "i" , 100 ) , new SingleResultCallback < DeleteResult > ( ) { @ Override public void onResult ( final DeleteResult result , final Throwable t ) { System . out . println ( result . getDeletedCount ( ) ) ; } } ) ; final CountDownLatch dropLatch2 = new CountDownLatch ( 1 ) ; collection . drop ( new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { dropLatch2 . countDown ( ) ; } } ) ; dropLatch2 . await ( ) ; // ordered bulk writes List < WriteModel < Document > > writes = new ArrayList < WriteModel < Document > > ( ) ; writes . add ( new InsertOneModel < Document > ( new Document ( "_id" , 4 ) ) ) ; writes . add ( new InsertOneModel < Document > ( new Document ( "_id" , 5 ) ) ) ; writes . add ( new InsertOneModel < Document > ( new Document ( "_id" , 6 ) ) ) ; writes . add ( new UpdateOneModel < Document > ( new Document ( "_id" , 1 ) , new Document ( "$set" , new Document ( "x" , 2 ) ) ) ) ; writes . add ( new DeleteOneModel < Document > ( new Document ( "_id" , 2 ) ) ) ; writes . add ( new ReplaceOneModel < Document > ( new Document ( "_id" , 3 ) , new Document ( "_id" , 3 ) . append ( "x" , 4 ) ) ) ; SingleResultCallback < BulkWriteResult > printBatchResult = new SingleResultCallback < BulkWriteResult > ( ) { @ Override public void onResult ( final BulkWriteResult result , final Throwable t ) { System . out . println ( result ) ; } } ; collection . bulkWrite ( writes , printBatchResult ) ; final CountDownLatch dropLatch3 = new CountDownLatch ( 1 ) ; collection . drop ( new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { dropLatch3 . countDown ( ) ; } } ) ; dropLatch3 . await ( ) ; collection . bulkWrite ( writes , new BulkWriteOptions ( ) . ordered ( false ) , printBatchResult ) ; collection . find ( ) . forEach ( printDocumentBlock , callbackWhenFinished ) ; // Clean up final CountDownLatch dropLatch4 = new CountDownLatch ( 1 ) ; collection . drop ( new SingleResultCallback < Void > ( ) { @ Override public void onResult ( final Void result , final Throwable t ) { dropLatch4 . countDown ( ) ; } } ) ; dropLatch4 . await ( ) ; // release resources 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
@throws InterruptedException if a latch is interrupted
Run this main method to see the output of this quick example .