What it the root class for all Java classes ?,Java, C ,C++, ASP, ASP.net C# ,Struts ,Questions & Answer, Struts2, Ajax, Hibernate, Swing ,JSP , Servlet, J2EE ,Core Java ,Stping, VC++, HTML, DHTML, JAVASCRIPT, VB ,CSS, interview ,questions, and answers, for,experienced, and fresher
What it the root class for all Java classes ?

The Object class is the root class of all the Java classes.

More interview questions and answers

What is the use of JTable ?

What is mean by JFC ?

What is JAR file ?

What is mean by manifest files ?

What is two properties in Beans ?

What is the use of beaninfo ?

What are the interfaces you used in Beans ?

What are the classes you used in Beans ?

What is the difference between C++ & Java ?

What is the difference between Process and Threads ?

How will you initialize an Applet ?

What is the order of method invocation in an Applet ?

When is update method called ?

What is JNI ?

What is the base class for all swing components ?

Is there any tag in HTML to upload and download files ?

What is the Layout for ToolBar ?

How will you add panel to a Frame ?

What is the corresponding Layout for Card in Swing ?

What is light weight component ?

What is difference in between Java Class and Bean ?

Diff between Application and Applet ?

What is the use of Interface ?

Why Java is not fully objective oriented ?

What it the root class for all Java classes ?

What is the exact difference in between Unicast and Multicast object ? Where we will use ?

Why there are some null interface in java ? What does it mean ?

What is latest versions in JAVA related areas ?

What is mean by class loader ? How many types are there? When will we use them ?

public static void main - Explain?

What is difference between String & StringBuffer?

What is Wrapper class. Is String a Wrapper Class?

What is Default modifier in Interface?

Can abstract be declared as Final?

Can we declare variables inside a method as Final Variables?

How can a dead thread be started?

Can Applet have constructors?

What is Checked & Unchecked exception?

Explain. Two types of multi-tasking.

Explain I/O Filter.

Can applet in different page communicate with each other?

How many nodes do a complete full binary tree with 10 leaves have?

What is server code and client code in C#?

Why we using in header file using system and more header file is in C# what is difference between and all header file ?

Give Real life examples of polymorphisms, encapsulation and inheritance?

What is partial class?what is its advantage.

What is the name of c#.net compiler?

What is an object?

What is a class?

what abstraction,encapsulation,inheritance? Define with example.

What is mean "Death of Diamod"?

what is the main difference between delegate and an event in c#?

How to use Hash Table,ArrayList in c# ?Explain with example.

What is the difference between shadow and override ?

What is the top .NET class that everything is derived from?

When we can inherit a protected class-level variable?

Does C# support multiple inheritance?

How do you inherit from a class in C#?

What is an abstract class?

What does the keyword virtual mean in the method definition?

How's method overriding different from overloading?

Describe the accessibility modifier protected internal.

Are private class-level variables inherited?

When you inherit a protected class-level variable? Who is it available to?

What's the implicit name of the parameter that gets passed into the class' set method?

Is it mandatory to implement all the methods which are there in abstract class if we inherit that abstract class?

What is the difference between const and static read-only?

How to fill datalist usinf XML file and how to bind it,code behind language is c# ?

What is advantase of serialization?

How we handle sql exceptions?

What is the class that handles SqlServer exceptions?

What is indexer?

where indexer is used ?

Can we inherit the java class in C# class?If Yes then how?

Every statement in C# must end with?

The C# code files have an extension ?

How you can compile a C# program using command promt?

ASP.NET web pages can be programmed in C#?

All the .NET languages have the following in common?

IL code compiles to ?

Which is the first level of compilation in the .NET languages?

What is IL?

What is CTS?

What is the namespace used for Reflection?

To access attributes, the waht is used?

List all collections in C#.

How you can write Unsafe code in C# and in which block?

Which method is used to force the garbage collector?

Each process in a 32 bit Windows environment has the what amount of virtual memory will available?

What is correct syntax for defining a delegate?

What is syntax of inherit a class?

How do you deploy an assembly?

How namespace is used for globalization?

How does a running application communicate or share data with other application running in different application domains?

What are difference between shadow and override?

We have an event handler called MyEvent and we want to link the click event of control, MyButton, to use MyEvent, what is the code that will like them together?

Which debugging window allows you to see the methods called in the order they were called?

The auto,local ,watch

What is wrapper class? Is it available in c#?

What is protected internal class in C# ?

R4R provides free online tutolrails ,examples for Freshers and experts .We cover core java, tutorials, spring, Hibernate, python, struts, struts 2,c language, spring boot,PHP,MYSQL,C#,ASP.NET,WPF,WCF,Photoshop , JSP, programming, example, Interview questions and answer