got error:PreparedStatement… while running java program

Question

i got error while running the java program my code is:

for(int k=0;k<ikm;k++)
 {
 if(word[jm].contains(item1))
  {
  final String query1="SELECT COUNT(*) FROM c_ngram WHERE Words = item1";
  final PreparedStatement ps = conn.prepareStatement(query1);
  ps.setString(1, item1);
  final ResultSet resultSet = ps.executeQuery();
  if(resultSet.next()) {
  final int count = resultSet.getInt(1);

....

error shows in "final PreparedStatement ps" line

please help me

Answer 1

您的查询是错误的，您可能是说：

"SELECT COUNT(*) FROM c_ngram WHERE Words = ?"

Answer 2

Use ? in query string to set parameter

final String query1="SELECT COUNT(*) FROM c_ngram WHERE Words = ?";

To get details about the error you can use try catch.