How to call the PLAN (created using prepare statement) in the JAVA

Java SDK
3

Using Java SDK, you can specify adhoc parameter to be false to exploit prepared statement without having to manage the prepared statement/etc.
SDK handles this and multi-node environment, etc seamlessly.

From: Java SDK and Prepared Statement

N1qlParams.build().consistency(ScanConsistency.REQUEST_PLUS).adhoc(false));