It is useful to have a private constructor in a java object ?

public void myMethod(String... strings){ // method body } Which call of myMethod() is not correct?

How many instances of String Object are created in the following line of code? String a = "b" + "c"

Servlet developers should avoid using JDBC-ODBC bridge driver because:

Which of the following statements are true regarding the structure of a Web Archive file?

Clustering is used in many types of servers for high availability. Select the correct statement definition used in Clustering.

A.  App Server Cluster
An app server cluster is a group of machines that can run an application server that can be reliably utilized with a minimum of down-time.
B.  Database Server Cluster
An database server cluster is a group of machines that can run a database server that can be reliably utilized with a minimum of down-time.

The class ____ is the base of the classes designed to handle exceptions.

The ________ method is used to display a message dialog.

The ________ method immediately terminates the program.

The ____ method converts any object to a string.

Methods that set values are called ____ methods.