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Oracle Core Java Interview Questions
Questions Answers Views Company eMail

Difference between this(), super()?

 12 34368

What is singleton class?

 16 68139

Difference between JDK, JRE, JVM

 16 92938

what is meant by string pooling?

 12 38007

explain System.out.println

 107 187633

What is compile time polymorphism?

 20 35689

what is bytecode? watz the difference between machine code and bytecode?

 9 28722

What is the basically use of finally while we know it is always executed but why?

 5 8352

Read data from console and print in one file. That would be in C:\temp ? Thanks, Bose

 3 7372

I have one POJO class(Java bean class), it has two variables for that it has setters and getters. Now i have created two objects for that class and i have set the data for those variables through this two objects. Now question is i want check whether those two objects have same data or not, for this write a program? Thanks, Bose.

 2 16068

i need example for java abstraction. where we use abstraction and why we need abstraction.

 2 13244

What are the Abstract Classes provided by Java?

 5 9166

Why are inner classes required?

 3 7504

How can we get one Interface methods whit out using implementation of interface

 1 3526

Which is the best way of exception handling?

 2 6313

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Oracle Core Java Interview Questions


Un-Answered Questions

Directories can be implemented either as "special files" that can only be accessed in limited ways, or as ordinary data files. What are the advantages and disadvantages of each approach?

4212

What is system simulation?

762

What is super nova?

915

How do I find my installed apps?

695

How do you ensure that your departments goals are in line with the overall company goals?

1803

When I tried to go into a security sites I am denied access and a message appeared saying 'applet not initialize'. How can I rectify this problem.

1751

When I add or modify an item in my dataprovider, why does not it show up in my datagrid? : adobe flex action script

3

Define end float in a motor?

5671

Reads in the size of a square from the screen; 2. Prints a hollow square of that size out of “-“, “|” and blanks on screen; 3. Prints the same hollow square onto a text file. Your program should work for squares of all side sizes between 1 and 20. --- │ │ │ │ │ │ ---

1856

Can you tell something about the data ware-house hierarchy?

679

What are variables in python?

594

How can one find bugs in job sequence?

1027

we want to setup one-way data replication for my online transaction processing application. However there are compressed tables in the environment. Please suggest how I can achieve it?

5

Can we commit in trigger?

709

What are the uses of php language?

719