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Programming Languages Interview Questions
Questions Answers Views Company eMail

How do I declare a pointer to an array?

IBM,

6 14449

How can I set an array's size at run time?

9 14772

When you call malloc() to allocate memory for a local pointer, do you have to explicitly free() it?

Aloha Technology,

2 8760

How does free() know how many bytes to free?

8 21241

What's the difference between calloc() and malloc()?

4 8957

What is alloca() and why is its use discouraged?

1 6692

What are .h files and what should I put in them?

3 6299

What does the message "warning: macro replacement within a string literal" mean?

1 3678

AMMONG THE 4 STROAGE CLASSES IN C, WHICH ONE FASTEST?

HCL,

13 23874

1. What does the following do: void afunction(int *x) { x=new int; *x=12; } int main() { int v=10; afunction(&v); cout<

Quark,

5 11068

How long does this loop run: for(int x=0; x=3; x++) a) Never b) Three times c) Forever

Datavance, Quark, VEL, Wipro,

17 57162

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union aunion { int x; float v; }; c) char array[10];

Quark,

4 9425

Evaluate: int fn(int v) { if(v==1 || v==0) return 1; if(v%2==0) return fn(v/2)+2; else return fn(v-1)+3; } for fn(7); a) 10 b) 11 c) 1

Quark,

4 12005

Which of the Standard C++ casts can be used to perform a ?safe? downcast: a) reinterpret_cast b) dynamic_cast c) static_cast d) const_cast

Quark,

2 7447

class professor {}; class teacher : public virtual professor {}; class researcher : public virtual professor {}; class myprofessor : public teacher, public researcher {}; Referring to the sample code above, if an object of class "myprofessor" were created, how many instances of professor will it contain? a) 0 b) 1 c) 2 d) 3 e) 4

Quark,

4 11858


Un-Answered Questions { Programming Languages }

Why You Should Use WordPress?

168


What is the use of tuples in scala?

7


How to use http headers inside php?

1117


What is a sympy?

1200


How do I edit the content of my wordpress site?

175


Write my own zero-argument manipulator that should work same as hex?

1101


How to clone or copy a list in python?

919


Explain the purpose of the keyword volatile.

1241


What is pythonpath?

899


Name some of the features of python?

951


python is case sensitive ?

923


How to remove white spaces from the beginning and/or the end of a string in php?

1048


What does php exit do?

1120


What is the use of wordpress news in wordpress dashboard?

180


Why Scala is better than Java? What are the advantages of Scala over Java (Java 8)? Compare to Java What are the major advantages or benefits of Scala?

7