Load neo4j database with java -

i have neo4j database ready , want make java app retrieving data it. how can load made database in program , query it? in code i'm giving below want initialize db object database.

thanks in advance

executionengine engine = new executionengine(db); string query = ""; executionresult result = engine.execute( query);

see tutorial in neo4j manual:

http://docs.neo4j.org/chunked/stable/tutorials-cypher-java.html

graphdatabaseservice db = new graphdatabasefactory().newembeddeddatabase( db_path ); executionengine engine = new executionengine( db ); executionresult result = engine.execute( "start n=node(*) n.name! = 'my node' return n, n.name" ); 

make sure keep db , execution engine in shared variable. , shutdown() db when program ends.