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Virtual Destructor - What is the need for “Virtual Destructor”?
Virtual Destructor - What is the need for “Virtual Destructor”? Destructors are declared as virtual because if do not declare it as virtual the base class destructor will be called before the derived class destructor and that will lead to memory leak because derived class’s objects will not get fre... 2012-04-03, 3479👍, 0💬

The uniqueId that gets generated at the start of the Session is stored in ...
The uniqueId that gets generated at the start of the Session is stored in ... The uniqueId that gets generated at the start of the Session is stored in * Client computer as a cookie * Server machine * Passed to and fro on each and every request and response * Both a and b are correct Both a and b ar... 2014-03-19, 3477👍, 0💬

What is different between TRUNCATE and DELETE?
What is different between TRUNCATE and DELETE? The Delete command will log the data changes in the log file where as the truncate will simply remove the data without it. Hence Data removed by Delete command can be rolled back but not the data removed by TRUNCATE. Truncate is a DDL statement whereas ... 2011-08-30, 3470👍, 0💬

What is your Oracle application 11i Webserver Version and how to find it ?
What is your Oracle application 11i Webserver Version and how to find it ? From 11.5.8 to 11.5.10 Webserver version is iAS 1.0.2.2.2, In order to find version under $IAS_ORACLE_HOME/Apache/Apache /binexecute ./httpd -version ./httpd -version Server version: Oracle HTTP Server Powered by Apache/1.3.1... 2011-11-24, 3468👍, 0💬

Giving the following class definitions, how many subobjects of class V in class X?
Giving the following class definitions, how many subobjects of class V in class X? class V { /* ... */ }; class B1 : virtual public V { /* ... */ }; class B2 : virtual public V { /* ... */ }; class B3 : public V { /* ... */ }; class X : public B1, public B2, public B3 { /* ... */}; 2012-04-27, 3462👍, 0💬

What is semaphore? C++
What is semaphore? C++ Semaphore is a special variable, it has two methods: up and down. Semaphore performs atomic operations, which means ones a semaphore is called it can not be inturrupted. The internal counter (= #ups - #downs) can never be negative. If you execute the “down” method when the int... 2012-04-09, 3457👍, 0💬

How to open a window with no toolbar, but with the location object.
How to open a window with no toolbar, but with the location object. window.open("http://www.mysite .org/Misc/Pennies","Pennies"," resizable=yes,status=yes,toolbar=yes,locatio n=yes,menubar=yes,scrollbars=y es,width=800,height=400"); 2011-05-15, 3457👍, 0💬

Your manager has asked you to integrate an existing project
Scenario:- Your manager has asked you to integrate an existing project with an external timer. Her requirements include adding a global variable whose contents can be only read by the software but whose value will be continuously updated by the hardware clock. Referring to the above scenario, which ... 2012-04-26, 3455👍, 0💬

What is a template? C++
What is a template? C++ Templates allow to create generic functions that admit any data type as parameters and return value without having to overload the function with all the possible data types. Until certain point they fulfill the functionality of a macro. Its prototype is any of the two followi... 2012-02-03, 3453👍, 0💬

After capturing the SelectedIndexChanged event for a ListBox control, you find that the event handler doesn’t execute. What co
After capturing the SelectedIndexChanged event for a ListBox control, you find that the event handler doesn’t execute. What could the problem be? After capturing the SelectedIndexChanged event for a ListBox control, you find that the event handler doesn’t execute. What could the problem be? * ... 2014-08-11, 3451👍, 0💬

Which data type is used for storing graphics and images?
Which data type is used for storing graphics and images? Raw, Long Raw, and BLOB. 2011-12-20, 3451👍, 0💬

Which one of the following operators can only be ....
Which one of the following operators can only be overridden when implemented as a member function of the class it is being implemented for? 1 == (double equal) 2 + (plus) 3 ! (exclamation point) 4 = (equal) 5 & (ampersand) 2012-05-04, 3445👍, 0💬

Whats is difference between two env files in &lt;CONTEXT>.env and APPS&lt;CONTEXT>.env under $APPL_TOP ?
Whats is difference between two env files in &lt;CONTEXT>.env and APPS&lt;CONTEXT>.env under $APPL_TOP ? APPS&lt;CONTEXT>.env is main environment file which inturn calls other environment files like &lt;CONTEXT>.env under $APPL_TOP, &lt;CONTEXT>.env under 806 ORACLE_HOME and cust... 2011-10-04, 3441👍, 0💬

How to create a popup warning box?
How to create a popup warning box? alert('Warning: Please enter an integer between 0 and 100.'); 2011-03-01, 3440👍, 0💬

What is variable typing in JavaScript?
What is variable typing in JavaScript? It is perfectly legal to assign a number to a variable and then assign a string to the same variable as in the following example: i = 10; i = "string"; This is called variable typing 2011-01-25, 3437👍, 0💬

What is output equal to in Bitwise Operations - ...
What is output equal to in Bitwise Operations - ... What is output equal to in Bitwise Operations - Given inputs X, Y, Z and operations | and & (meaning bitwise OR and AND, respectively), what is output equal to in? output = (X & Y) | (X & Z) | (Y & Z); 2012-04-04, 3434👍, 0💬

What is RRA/FNDFS ?
What is RRA/FNDFS ? Report Review Agent(RRA) also referred by executable FNDFS is default text viewer in Oracle Applications 11i for viewing output files and log files. As most of Applications DBA's are not clear about Report Server and RRA, I'll discuss one on my blog and update link here . 2011-12-14, 3434👍, 0💬

Assuming that all the necessary standard headers have been ....
class Parent { public: Parent () { Status () ; } virtual ~Parent () { Status () ; } virtual void Status () { cout << "Parent "; } } ; class Child : public Parent { public: Child () { Status () ; } virtual ~Child () { Status () ; } virtual void Status () { cout &lt;&lt; "Child " ; } } ;... 2012-05-03, 3432👍, 0💬

Where would I find .rf9 file, and what it dose ?
Where would I find .rf9 file, and what it dose ? These files are used during restart of patch in case of patch failure because of some reason. 2011-10-18, 3431👍, 0💬

Can a public class MyClass be defined in a source file named YourClass.java?
Can a public class MyClass be defined in a source file named YourClass.java? No the source file name, if it contains a public class, must be the same as the public class name itself with a .java extension. 2013-07-02, 3421👍, 0💬

What are ORACLE PRECOMPILERS?
What are ORACLE PRECOMPILERS? A precompiler is a tool that allows programmers to embed SQL statements in high-level source programs like C, C++, COBOL, etc. The precompiler accepts the source program as input, translates the embedded SQL statements into standard Oracle runtime library calls, and gen... 2011-09-20, 3415👍, 0💬

Can you make use of a ServletOutputStream object from within a JSP page?
Can you make use of a ServletOutputStream object from within a JSP page? No. You are supposed to make use of only a JSPWriter object (given to you in the form of the implicit object out) for replying to clients. A JSPWriter can be viewed as a buffered version of the stream object returned by respons... 2013-08-02, 3407👍, 0💬

Calculating Total Weight of Subtree
Subject: Calculating Total Weight of Subtree --- Category: ,1, --- Question Can you write a computer code for the following problem: Given a text file with 3 comma-delimited columns of all integers: 'id', 'parent' and 'weight'. Each line represents a node identified by 'id'. 'parent' refers to 'id' ... 2014-01-02, 3379👍, 0💬

Is main a keyword in Java?
Is main a keyword in Java? No, main is not a keyword in Java. 2013-06-25, 3370👍, 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