Batch processing

public void test_execute_batch() {
    Connection conn = null;
    try {
        for (int q = 0; q < 2; q++) {
            for (int w = 0; w < 2; w++) {
                for (int e = 0; e < 2; e++) {

                    /**
                     *  useServerPrepStmts = true / false
                     *  rewriteBatchedStatements = true / false
                     *  allowMultiQueries = true / false
                     */
                    boolean uSPS = q == 0 ? false : true;
                    String rBS = w == 0 ? "false" : "true";
                    String aMQ = e == 0 ? "false" : "true";

                    String other_condition = "&rewriteBatchedStatements=" + rBS
                            + "&allowMultiQueries=" + aMQ;
                    conn = ConnectionUtils.getDefObOracleConnection(uSPS, true, other_condition);
                    Statement statement = conn.createStatement();

                    try {
                        statement.execute("DROP TABLE test_batch_t");
                    } catch (SQLException exp) {
                        //e.printStackTrace();
                    }

                    String sql = "create table test_batch_t(id int primary key, c1 varchar2(10))";
                    statement.execute(sql);

                    PreparedStatement ps = conn
                            .prepareStatement("insert into test_batch_t(id, c1) values (?, ?)");

                    for (int j = 0; j < 10; j++) {
                        ps.setInt(1, j);
                        ps.setString(2, j + "_test");
                        ps.addBatch();
                    }
                    ps.executeBatch();

                    ps = conn.prepareStatement("update test_batch_t set id = ? where c1 = ?");

                    for (int j = 0; j < 10; j++) {
                        ps.setInt(1, j);
                        ps.setString(2, j + "_test");
                        ps.addBatch();
                    }
                    ps.executeBatch();
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}