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Oracle Core Java Interview Questions
Questions Answers Views Company eMail

Difference between this(), super()?

 12 34236

What is singleton class?

 16 67920

Difference between JDK, JRE, JVM

 16 92783

what is meant by string pooling?

 12 37862

explain System.out.println

 107 186819

What is compile time polymorphism?

 20 35511

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

 9 28593

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

 5 8306

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

 3 7323

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 16038

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

 2 13219

What are the Abstract Classes provided by Java?

 5 9095

Why are inner classes required?

 3 7461

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

 1 3493

Which is the best way of exception handling?

 2 6289

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Oracle Core Java Interview Questions


Un-Answered Questions

What is int data type?

698

Using excel is there a way to close all open excel files at once instead of closing them one at a time?

403

How many active assignment rules can you have in a lead/ case?

290

How do I write formulas in word?

426

What do you mean by subquery?

746




hi.. i've one crystal report. i want the report header as "employee database". i dont want to right click->insert and goto text object and insert. i've one aspx page and aspx.cs page also. now i want the "employee database" header to be printed from .cs file. i dont want to pass by parameter also.. i.e is there any option in .cs file something like ReportDocument myreport = new ReportDocument(); myreport.Load(MapPath("~/" + "emp.rpt")); myReport.Reportheader="Employee database"; i hope u have understood this. only thing is from .cs file i want to print the header as employee database. i dont want by passing parameter also... please help....

2629

Is main an identifier?

738

Can linux be hacked?

588

What is Wi-Fi Protocol for an Internet of Things (IoT)?

5

How much does magento 2 cost?

1

What language is supported by android for application development?

644

In Oracle Applications will Translation will create any journal entry then what is the journal entry what are the accounts affected

1858

how can we implement locks in plsql?

2013

WHAT IS EXCISE DUTY RATE IN HARYANA for RMC

2584

How do I customize the toolbar in excel 2016?

389