Java Core Classes and Threads

This method returns the preferred Locale for the content that the client will accept.

These are correct statements about StringBuffer Class.

These are the correct statements about garbage collection in java.

The volatile modifier always reconcile its own private copy of the variable with the master copy in memory.

It it returns 5, then Ignore button is selected.

This displays Abort/Retry/Ignore buttons.

This is correct answer. All of the given methods are defined in the OutputStream class.

All of the methods are defined in the Reader class. So this is the correct choice.

There is no subclass of Reader class named InputReader. The correct name is InputStreamReader used for reading a character stream. So this is the correct answer according to the question.

This is the correct answer. There is no Subclass named charWriter. The correct name is CharArrayWriter which is used for writing to a char array. So this is the correct answer according to the question.

All of the given methods are defined in the File class. So this is the correct answer.

All of the methods are defined in the Input Stream class. So this is the correct choice.

This is correct answer because all of the given methods are valid in java event handling.

This option is correct because there is no method defined fillCircle() in Graphics class. 

This is the answer because JList doesn’t generate an ActionEvent. When we click an item in JList ListSelectionEvent is generated.