How to delete all documents in mongodb collection in java

Question

I want to delete all documents in a collection in java. Here is my code:

MongoClient client = new MongoClient(\"10.0.2.113\" , 27017);
        MongoDatabase         


        

Answer 1

If you want to remove all documents in collection then used below code :

 db.getCollection("mainCollection").remove(new BasicDBObject());

Or If you want to drop whole collection then used this :

db.getCollection("mainCollection").drop();