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What methods can be overridden in Java?
What methods can be overridden in Java? In C++ terminology, all public methods in Java are virtual. Therefore, all Java methods can be overwritten in subclasses except those that are declared final, static, and private. 2012-03-27, 3298👍, 0💬

How do you open and close a cursor variable. Why it is required?
How do you open and close a cursor variable. Why it is required? Using OPEN cursor_name and CLOSE cursor_name commands. The cursor must be opened before using it in order to fetch the result set of the query it is associated with. The cursor needs to be closed so as to release resources earlier than... 2011-10-31, 3297👍, 0💬

What is a Null object? C++
What is a Null object? C++ It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an... 2012-01-10, 3286👍, 0💬

What is an incomplete type? C++
What is an incomplete type? C++ Incomplete types refers to pointers in which there is non availability of the implementation of the referenced location or it points to some location whose value is not available for modification. int *i=0x400 // i points to address 400 *i=0; //set the value of memory... 2012-01-06, 3286👍, 0💬

Is delete a keyword in Java?
Is delete a keyword in Java? No, delete is not a keyword in Java. Java does not make use of explicit destructors the way C++ does. 2013-06-26, 3285👍, 0💬

How can you quickly find the number of elements stored in a a) static array b) dynamic array ? Why is it difficult to stor
How can you quickly find the number of elements stored in a a) static array b) dynamic array ? Why is it difficult to store linked list in an array? How can you find the nodes with repetetive data in a linked list? Write a prog to accept a given string in any order and flash error if any of the char... 2012-02-27, 3282👍, 0💬

Where is HTML Cache stored in Oracle Applications Server ?
Where is HTML Cache stored in Oracle Applications Server ? Oracle HTML Cache is available at $COMMON_TOP/_pages for some previous versions you might find it in $OA_HTML/_pages 2011-12-09, 3281👍, 0💬

Name 7 layers of the OSI Reference Model?
Name 7 layers of the OSI Reference Model? -Application layer -Presentation layer -Session layer -Transport layer -Network layer -Data Link layer -Physical layer 2012-04-13, 3278👍, 0💬

Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"?
Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"? Answer1. In assignment operator, you are assigning a value to an existing object. But in copy constructor, you are creating a new object and then assigning a value to that object. For example: compl... 2012-03-30, 3278👍, 0💬

State True or False: ASP.NET can currently run only on Windows Platform: * True or * False?
State True or False: ASP.NET can currently run only on Windows Platform: * True or * False? True 2014-03-12, 3276👍, 0💬

Explain term POLIMORPHISM and give an example using eg. SHAPE object: If I have a base class SHAPE, how would I define DRAW meth
Explain term POLIMORPHISM and give an example using eg. SHAPE object: If I have a base class SHAPE, how would I define DRAW methods for two objects CIRCLE and SQUARE Answer1 POLYMORPHISM : A phenomenon which enables an object to react differently to the same function call. in C++ it is attained by u... 2012-02-08, 3276👍, 0💬

What is the difference between preemptive scheduling and time slicing?
What is the difference between preemptive scheduling and time slicing? Under preemptive scheduling, the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into existence. Under time slicing, a task executes for a predefined slice of time and the... 2013-06-20, 3274👍, 0💬

You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc()
You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc() Answer1 1.) “new and delete” are preprocessors while “malloc() and free()” are functions. [we dont use brackets will calling new or delete]. 2.) no need of allocate the m... 2012-02-06, 3272👍, 0💬

How you will start Discoverer in Oracle Applications 11i ?
How you will start Discoverer in Oracle Applications 11i ? In order to start dicoverer you can use script addisctl.sh under $OAD_TOP/admin/scripts/$CONTEX T_NAMEor startall.sh under $ORACLE_HOME/discwb4/util (under Middle/Application Tier) 2011-12-08, 3271👍, 0💬

What is an explicit constructor? C++
What is an explicit constructor? C++ A conversion constructor declared with the explicit keyword. The compiler does not use an explicit constructor to implement an implied conversion of types. It’s purpose is reserved explicitly for construction. 2012-03-21, 3270👍, 0💬

Describe PRIVATE, PROTECTED and PUBLIC – the differences and give examples.
Describe PRIVATE, PROTECTED and PUBLIC – the differences and give examples. class Point2D{ int x; int y; public int color; protected bool pinned; public Point2D() : x(0) , y(0) {} //default (no argument) constructor }; Point2D MyPoint; You cannot directly access private data members when they are de... 2012-02-13, 3270👍, 0💬

Can cursor variables be stored in PL/SQL tables. If answer is yes, explain how? If not why?
Can cursor variables be stored in PL/SQL tables. If answer is yes, explain how? If not why? Yes. Create a cursor type - REF CURSOR and declare a cursor variable of that type. DECLARE /* Create the cursor type. */ TYPE company_curtype IS REF CURSOR RETURN company%ROWTYPE; /* Declare a cursor variable... 2011-10-25, 3270👍, 0💬

What do you mean by Stack unwinding? C++
What do you mean by Stack unwinding? C++ It is a process during exception handling when the destructor is called for all local objects between the place where the exception was thrown and where it is caught. 2012-01-11, 3269👍, 0💬

Differentiate between a template class and class template.C++
Differentiate between a template class and class template.C++ Template class: A generic definition or a parameterized class not instantiated until the client provides the needed information. It’s jargon for plain templates. Class template: A class template specifies how individual classes can be con... 2012-01-03, 3269👍, 0💬

What’s the difference between private and shared assembly?
What’s the difference between private and shared assembly? Private assembly is used inside an application only and does not have to be identified by a strong name. Shared assembly can be used by multiple applications and has to have a strong name. 2014-12-17, 3268👍, 0💬

What is plssql/database cache ?
What is plssql/database cache ? In order to improve performance mod_pls (Apache component) caches some database content to file. This database/plssql cache is usually of type session and plsql cache # session cache is used to store session information. # plsql cache is used to store plsql cache i.e.... 2011-11-26, 3257👍, 0💬

Can C driver in application patch create Invalid Object in database ?
Can C driver in application patch create Invalid Object in database ? No , C driver only copies files in File System. Database Object might be invalidated during D driver when these objects are created/dropped/modified. 2011-11-15, 3257👍, 0💬

How to compile an Oracle Reports file ?
How to compile an Oracle Reports file ? Utility adrepgen is used to compile Reports. Synatx is given below adrepgen userid=apps\&lt;psswd> source = $PRODUCT_TOP\srw\filename.rdf dest=$PRODUCT_TOP\srw\filename .rdfstype=rdffile dtype=rdffile logfile=x.log overwrite=yes batch=yes dunit=character 2011-11-08, 3257👍, 0💬

What is the immediate superclass of the Applet class?
What is the immediate superclass of the Applet class? Panel 2012-10-03, 3254👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML