how to Escape single quotes with PreparedStatment

Hi All,
I'm trying to write a preparedstatement query as below.

String query= "SELECT count(*) over () as ROWCOUNT,
CONSUMER_ID,WENEXA_ID,CONSUMER_NAME,CONTACT_NO,residing_village from
db_consumer WHERE (lower(CONSUMER_NAME) LIKE (lower('%"+name+"%'))OR
(lower('" + name + "')='')) AND (lower(RESIDING_VILLAGE) LIKE
(lower('%"+village+"%')) OR (lower('" + village + "')='')) AND
(lower(WENEXA_ID) LIKE (lower('%"+wenexaid+"%'))OR(lower( '" + wenexaid +
"')='')) LIMIT '"+pageLimit+"'OFFSET '"+pageOffset+"'";

stmt = con.prepareStatement(query);
rs= stmt.executeQuery();

However , the query fails with postgresql when a double quote is passed into
it.I was under the impression that Prepared statement would take care of the
same . But can anyone explain why I'm getting the error?
Thank you.

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