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Can the default values be assigned to actual parameters?
Can the default values be assigned to actual parameters? Yes. In such case you don’t need to specify any value and the actual parameter will take the default value provided in the function definition. 2011-10-20, 3016👍, 0💬

What is the value of "count" immediately before the return statement above is executed?
int count=0; class obj { public: obj(){ count++; } ~obj() { count--; } }; main() { obj A,B,C,D ; return 0 ; } What is the value of "count" immediately before the return statement above is executed? 1) 0 2) 1 3) 2 4) 3 5) 4 2012-04-25, 3015👍, 0💬

Interview question
Have you ever worked without salary? 2020-02-20, 3011👍, 0💬

What if I do not provide the String array as the argument to the method?
What if I do not provide the String array as the argument to the method? Program compiles but throws a runtime error "NoSuchMethodError". 2013-05-03, 3010👍, 0💬

What do you mean by pure virtual functions?
What do you mean by pure virtual functions? A pure virtual member function is a member function that the base class forces derived classes to provide. Normally these member functions have no implementation. Pure virtual functions are equated to zero. class Shape { public: virtual void draw() = 0; }; 2012-02-24, 3010👍, 0💬

When do you use WHERE clause and when do you use HAVING clause?
When do you use WHERE clause and when do you use HAVING clause? The WHERE condition lets you restrict the rows selected to those that satisfy one or more conditions. Use the HAVING clause to restrict the groups of returned rows to those groups for which the specified condition is TRUE. 2011-12-06, 3007👍, 0💬

Define a constructor - What it is and how it might be called (2 methods).
Define a constructor - What it is and how it might be called (2 methods). Answer1 constructor is a member function of the class, with the name of the function being the same as the class name. It also specifies how the object should be initialized. Ways of calling constructor: 1) Implicitly: automat... 2012-02-03, 3004👍, 0💬

What is a node class? C++
What is a node class? C++ A node class is a class that, * relies on the base class for services and implementation, * provides a wider interface to the users than its base class, * relies primarily on virtual functions in its public interface * depends on all its direct and indirect base class * can... 2012-01-13, 3003👍, 0💬

What is an object's lock and which object's have locks?
What is an object's lock and which object's have locks? An object's lock is a mechanism that is used by multiple threads to obtain synchronized access to the object. A thread may execute a synchronized method of an object only after it has acquired the object's lock. All objects and classes have loc... 2012-07-12, 2995👍, 0💬

What is the difference between ServletContext and PageContext?
What is the difference between ServletContext and PageContext? ServletContext: Gives the information about the container PageContext: Gives the information about the Request 2013-08-12, 2994👍, 0💬

Explain which of the following declarations will compile and what will be constant ...
Explain which of the following declarations will compile and what will be constant ... Explain which of the following declarations will compile and what will be constant - a pointer or the value pointed at: * const char * * char const * * char * const Note: Ask the candidate whether the first declar... 2012-03-01, 2994👍, 0💬

What is a COPY CONSTRUCTOR and when is it called?
What is a COPY CONSTRUCTOR and when is it called? A copy constructor is a method that accepts an object of the same class and copies it’s data members to the object on the left part of assignement: class Point2D{ int x; int y; public int color; protected bool pinned; public Point2D() : x(0) , y(0) {... 2012-02-14, 2993👍, 0💬

What do you mean by binding of data and functions?
What do you mean by binding of data and functions? Encapsulation. 2012-02-16, 2985👍, 0💬

Referring to the sample code above, on which one of the following lines does an initializer list occur?
1: class Foo { 2: int size; string name; double value; 3: 4: public: 5: Foo() : size(0), name("unknown"), value(0.0) { 6: } 7: Foo(int s) { 8: size = s; name = "unknown"; value = 0.0; 9: } 10: Foo(int s = 0, string n = "unknown", double v=0) { 11: size = s; name = n; value = v; 12: } 13: }; Referrin... 2012-04-26, 2984👍, 0💬

Is C an object-oriented language?
Is C an object-oriented language? C is not an object-oriented language, but limited object-oriented programming can be done in C. 2012-04-10, 2982👍, 0💬

What is an adaptor class or Wrapper class? C++
What is an adaptor class or Wrapper class? C++ A class that has no functionality of its own. Its member functions hide the use of a third party software component or an object with the non-compatible interface or a non-object-oriented implementation. 2012-01-09, 2979👍, 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, 2977👍, 0💬

If I do not provide any arguments on the command line, then the String array of Main method will be empty or null?
If I do not provide any arguments on the command line, then the String array of Main method will be empty or null? It is empty. But not null. 2013-05-06, 2977👍, 0💬

What is the software Life-Cycle?
What is the software Life-Cycle? The software Life-Cycle are 1) Analysis and specification of the task 2) Design of the algorithms and data structures 3) Implementation (coding) 4) Testing 5) Maintenance and evolution of the system 6) Obsolescence 2012-04-12, 2973👍, 0💬

Can you call one constructor from another if a class has multiple constructors?
Can you call one constructor from another if a class has multiple constructors? Yes. Use this() syntax. 2012-09-06, 2972👍, 0💬

What’s the output of the following program? Why?
What’s the output of the following program? Why? #include &lt;stdio.h&gt; main() { typedef union { int a; char b[10]; float c; } Union; Union x,y = {100}; x.a = 50; strcpy(x.b,\"hello\"); x.c = 21.50; printf(\"Union x : %d %s %f \n\",x.a,x.b,x.c ); printf(\"Union y :%d %s%f \n\",y.a,y.b,y.c)... 2012-02-27, 2971👍, 0💬

What is polymorphism? Explain with an example?
What is polymorphism? Explain with an example? "Poly" means "many" and "morph" means "form". Polymorphism is the ability of an object (or reference) to assume (be replaced by) or become many different forms of object. Example: function overloading, function overriding, virtual functions. Another exa... 2012-02-24, 2971👍, 0💬

What are the conditions that have to be met for a condition to be an invariant of the class?
What are the conditions that have to be met for a condition to be an invariant of the class? * The condition should hold at the end of every constructor. * The condition should hold at the end of every mutator (non-const) operation. 2012-01-12, 2968👍, 0💬

Name some major differences between C++ and Java.
Name some major differences between C++ and Java. C++ has pointers; Java does not. Java is platform-independent; C++ is not. Java has garbage collection; C++ does not. Java does have pointers. In fact all variables in Java are pointers. The difference is that Java does not allow you to manipulate th... 2012-04-10, 2967👍, 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