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What is the difference between an ARRAY and a LIST?
What is the difference between an ARRAY and a LIST? Answer1 Array is collection of homogeneous elements. List is collection of heterogeneous elements. For Array memory allocated is static and continuous. For List memory allocated is dynamic and Random. Array: User need not have to keep in track of n... 2012-02-02, 3073👍, 0💬

Are the imports checked for validity at compile time? e.g. will the code containing an import such as java.lang.ABCD compile?
Are the imports checked for validity at compile time? e.g. will the code containing an import such as java.lang.ABCD compile? Yes the imports are checked for the semantic validity at compile time. The code containing above line of import will not compile. It will throw an error saying,can not resolv... 2013-05-13, 3072👍, 0💬

What are virtual functions? C++
What are virtual functions? C++ A virtual function allows derived classes to replace the implementation provided by the base class. The compiler makes sure the replacement is always called whenever the object in question is actually of the derived class, even if the object is accessed by a base poin... 2012-02-22, 3071👍, 0💬

What is Boyce Codd Normal form?
What is Boyce Codd Normal form? A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a-&gt; , where a and b is a subset of R, at least one of the following holds: * a- &gt; b is a trivial functional dependency ... 2012-02-15, 3071👍, 0💬

Suppose a 3-bit sequence number is used in the selective-reject ARQ, what is the maximum number of frames that could be transmit
Suppose a 3-bit sequence number is used in the selective-reject ARQ, what is the maximum number of frames that could be transmitted at a time? If a 3-bit sequence number is used, then it could distinguish 8 different frames. Since the number of frames that could be transmitted at a time is no greate... 2012-04-17, 3070👍, 0💬

What is used to validate complex string patterns like an e-mail address?
What is used to validate complex string patterns like an e-mail address? What is used to validate complex string patterns like an e-mail address? * Extended expressions * Regular expressions * Irregular expressions * Basic expressions Regular Expression. 2014-08-14, 3069👍, 0💬

Where will you find forms configuration details apart from xml file ?
Where will you find forms configuration details apart from xml file ? Forms configuration at time of startup is in script adfrmctl.sh and appsweb_$CONTEXT_NAME.cfg (defined by environment variable FORMS60_WEB_CONFIG_FILE) for forms client connection used each time a user initiates forms connection. 2011-12-07, 3069👍, 0💬

What is polymorphism? C++
What is polymorphism? C++ Polymorphism is the idea that a base class can be inherited by several classes. A base class pointer can point to its child class and a base class array can store different child class objects. 2012-02-01, 3068👍, 0💬

Anything wrong with this code? ......
Anything wrong with this code? T *p = new T[10]; delete p; Everything is correct, Only the first element of the array will be deleted”, The entire array will be deleted, but only the first element destructor will be called. 2012-03-02, 3066👍, 0💬

Where is plssql cache stored in Oracle Applications ?
Where is plssql cache stored in Oracle Applications ? Usually two type of cache session and plssql stored under $IAS_ORACLE_HOME/Apache/modpls ql/cache 2011-12-13, 3065👍, 0💬

What is the difference between char a[] = “string”; and char *p = “string”;?
What is the difference between char a[] = “string”; and char *p = “string”;? In the first case 6 bytes are allocated to the variable a which is fixed, where as in the second case if *p is assigned to some other value the allocate memory can change. 2012-03-07, 3063👍, 0💬

What is an Iterator class? C++
What is an Iterator class? C++ A class that is used to traverse through the objects maintained by a container class. There are five categories of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, random access. An iterator is an entity that gives access to the... 2012-01-05, 3061👍, 0💬

What is the purpose of the enableEvents() method?
What is the purpose of the enableEvents() method? The enableEvents() method is used to enable an event for a particular object. Normally, an event is enabled when a listener is added to an object for a particular event. The enableEvents() method is used by objects that handle events by overriding th... 2012-08-03, 3057👍, 0💬

How do I initialize a pointer to a function?
How do I initialize a pointer to a function? This is the way to initialize a pointer to a function void fun(int a) { } void main() { void (*fp)(int); fp=fun; fp(1); } 2012-03-12, 3057👍, 0💬

What is abstraction? C++
What is abstraction? C++ Abstraction is of the process of hiding unwanted details from the user. 2012-02-22, 3056👍, 0💬

When should you use multiple inheritance?
When should you use multiple inheritance? There are three acceptable answers: "Never," "Rarely," and "When the problem domain cannot be accurately modeled any other way." 2012-03-19, 3053👍, 0💬

What is a class? C++
What is a class? C++ Class is a user-defined data type in C++. It can be created to solve a particular kind of problem. After creation the user need not know the specifics of the working of a class. 2012-02-20, 3049👍, 0💬

Tell how to check whether a linked list is circular C++
Tell how to check whether a linked list is circular C++ Create two pointers, each set to the start of the list. Update each as follows: while (pointer1) { pointer1 = pointer1-&gt;next; pointer2 = pointer2-&gt;next; if (pointer2) pointer2=pointer2-&gt;next ;if (pointer1 == pointer2) { pri... 2012-01-31, 3049👍, 0💬

How does Java handle integer overflows and underflows?
How does Java handle integer overflows and underflows? It uses those low order bytes of the result that can fit into the size of the type allowed by the operation. 2013-06-06, 3048👍, 0💬

Differentiate between the message and method. C++
Differentiate between the message and method. C++ Message: * Objects communicate by sending messages to each other. * A message is sent to invoke a method. Method * Provides response to a message. * It is an implementation of an operation. 2012-01-09, 3048👍, 0💬

What is a OUTER JOIN?
What is a OUTER JOIN? An OUTER JOIN returns all rows that satisfy the join condition and also returns some or all of those rows from one table for which no rows from the other satisfy the join condition. 2011-12-05, 3048👍, 0💬

How you put Applications 11i in Maintenance mode ?
How you put Applications 11i in Maintenance mode ? Use adadmin to change Maintenance mode is Oracle application. With AD.I you need to enable maintenance mode in order to apply application patch via adpatch utility. If you don't want to put application in maintenance mode you can use adpatch options... 2011-10-27, 3048👍, 0💬

What is the two main roles of Operating System?
What is the two main roles of Operating System? As a resource manager As a virtual machine 2012-01-23, 3045👍, 0💬

Can you apply patch without putting Applications 11i in Maintenance mode ?
Can you apply patch without putting Applications 11i in Maintenance mode ? Yes, use options=hotpatch as mentioned above with adpatch. 2011-10-27, 3045👍, 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