Java Core Classes and Threads

This method uses the same stack walker used by the garbage collector, security system, etc.

RegularExpressionValidator control in ASP.NET is used to check the user input based on a pattern that we define using RegularExpression. If the value does not match with the RegularExpression, then an error message is displayed.

The data is not visible in the URL. The Get method displays the data in the QueryString. This makes Post a safer choice than the Get method.

The Abandon method destroys all the objects stored in a Session object and releases their resources. If you do not call the Abandon method explicitly, the server destroys these objects when the session times out.

The java provides Adapter classes that implement the corresponding listener interfaces containing more than one method.

Classes that are not named are called anonymous classes and when you declare these classes in a method, don't need a name for these classes.

It defines the integer constants that can be used to identify them and is a subclass of InputEvent class.

This class defines integer constants that can be used to identify them and this class is a sub class of ComponentEvent class.

This class represents a FocusEvent which is generated when a component gains or loses input focus and this class is a subclass of ComponentEvent class.

Instance of this class describe text events which are generated by text fields and text areas when characters are entered by a user or program.

The ItemEvent Class represents an ItemEvent which is generated when a check box or a list item is clicked or when a checkable menu item is selected or deselected.

The abstract class InputEvent is a subclass of ComponentEvent and is the superclass for component input events.

Here, a keyEvent is generated when keyboard input occur in the KeyEvent class.

It provides the ability to navigate through an OidCollection object.

It is a list of the pending method calls at the point at which the exception was detected.