Java Core Classes and Threads

This is an object, which is notified when an event occurs.

This interface in event listener interface defines one method to recognize when a text value changes.

This method of Font class returns the name of the font family to which the invoking font belongs.

getItemSelectable() method can be used to obtain a reference to the ItemSelectable object that generate an event.

Java Programming language provide Adapter classes that implement the corresponding listener interface containing more than one method.

The connection object is initialized using the getConnection() method.

getClickCount() method of MouseEvent obtains the number of mouse clicks for the event

This primitive is used to terminate a connection with the server.

This is the correct answer because there is no method named getColumnSize(int column) in ResultSetMetaData interface. The correct method name is getColumnDisplaySize(int column), which indicates the designated column's normal maximum width in characters.

This is the correct option because there is no method named allTablesSelected() in DatabaseMetaData. The correct method is allTablesAreSelectable() and it retrieves whether the current user can call all the procedures returned by the method getProcedures or not.

This is the correct answer because getMaxCharLiteralLength() is defined in the DatabaseMetaData interface and it retrieves the maximum number of characters the database allows for a character literal.

This is the correct option because there is no method named deleteColumn() defined in ResultSet interface.

This is the correct option because getTime() method is defined in the Timestamp class in Java and it returns the number of milliseconds since January 1, 1970, 00:00:00 GMT represented by this Timestamp object.

This is the correct answer because there are 9 methods defined in the Date class. These are: 1) getHours() 2) getMinutes() 3) getSeconds() 4) setHours(int i) 5) setMinutes(int i) 6) setSeconds(int i) 7) setTime(long date) 8) toString():  9) valueOf(String s)

This is the correct option because isReadOnly() method is defined in DatabaseMetaData. It retrieves whether this database is in read-only mode or not.