Unreported exception java.sql.SQLException; must be caught or declared to be thrown?

Question

I got this error while trying to compile the below code. I would like to know what is I have done wrong.

unreported exception java.sql.SQLException; must be caugh         


        

Answer 1

This line of code throws an uncaught exception:

Driver driver = new org.gjt.mm.mysql.Driver();

try this:

try {
   Driver driver = new org.gjt.mm.mysql.Driver();
}
catch (java.sql.SQLException e) {
  // you may want to do something useful here
 // maybe even throw new RuntimException();
}

Answer 2

You either need to catch the exception in your method:

public void setupInfo()
{
    try
    {
        // call methods that might throw SQLException
    }
    catch (SQLException e)
    {
        // do something appropriate with the exception, *at least*:
        e.printStackTrace();
    }
}

Or declare the method to throw SQLException:

private void setupInfo() throws SQLException
{
    // call methods that might throw SQLException
}

Answer 3

Always try to get help from your IDE. IDEs can often fix the error automatically. Press alt+enter in IntelliJ IDEA or ctrl+1 in Eclipse and choose to fix the error.

Answer 4

Catch the exception or throw it. Better use an IDE (Eclipse or Netbeans), which will tell you the error the moment you press enter.