Java Questions-2

# Are constructors inherited? Can a subclass call the parent's class constructor? When?
# What synchronization constructs does Java provide? How do they work?
# Why "bytecode"? Can you reverse-engineer the code from bytecode?
# Does Java have "goto"?
# What does the "final" keyword mean in front of a variable? A method? A class?
# Access specifiers: "public", "protected", "private", nothing?
# What is JDBC? Describe the steps needed to execute a SQL query using JDBC.
# What is RMI?
# What are native methods? How do you use them?
# What does the keyword "synchronize" mean in java. When do you use it? What are the disadvantages of synchronization?
# How many different types of JDBC drivers are present? Discuss them.
# What is the difference between a Vector and an Array. Discuss the advantages and disadvantages of both?
# Describe java's security model.
# Java says "write once, run anywhere". What are some ways this isn't quite true?
# What is the difference between an Applet and an Application?
# How can you force all derived classes to implement a method present in the base class?
# What are abstract classes, abstract methods?
# What's the difference between == and equals method?
# Describe, in general, how java's garbage collector works?
# What is the difference between StringBuffer and String class?
# How can you achieve Multiple Inheritance in Java?
# What are interfaces?
# What are the main differences between Java and C++?
# Why are Java ARchive (JAR) files important?
# What is it reflection (introspection) ? Why is reflection possible in the Java language?
# How to make application thread-safe ?
# What is it object serialization?
# What do you know about networking support in Java?
# What you know about Corba implementation in Java?
# What is Java Beans?
# Compare SWING components to standard AWT.
# What is layout manager ? How does it work?
# What is the purpose of the toolkit in the Abstract Window Toolkit (AWT)? How does AWT work?
# What are the differences between Java & C++ in terms of its features?
# Is the ternary operator written x : y ? z or x ? y : z ?
# What is the List interface?
# What is the difference between an if statement and a switch statement?
# What are the problems faced by Java programmers who don't use layoutmanagers?
# What are the two basic ways in which classes that can be run as threads may be defined?
# What are synchronized methods and synchronized statements?
# Which Component subclass is used for drawing and painting?
# What methods are used to get and set the text label displayed by a Buttonobject?
# What method must be implemented by all threads?
# When is an object subject to garbage collection?
# Can an unreachable object become reachable again?
# How does a try statement determine which catch clause should be used tohandle an exception?
# What are the Object and Class classes used for?
# What modifiers may be used with a top-level class?
# What is a Java package and how is it used?
# What is the purpose of a statement block?
# What is the difference between the prefix and postfix forms of the ++ operator?
# Can try statements be nested?
# To what value is a variable of the boolean type automatically initialized?
# What is the difference between a public and a non-public class?