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Package Access Modifier
What do you mean by package access modifier?
shatish15
- Sep 3rd, 2010
I don't understand how you can say about the private and protected access modifiers for a class. When I created a program with private and protected access modifiers, the error was that these modifiers are not allowed here.
shamli85
- Apr 2nd, 2010
We can use protected and private modifier with a Class only if it is an inner Class.
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What are the advantages of Object Oriented Modeling?
Elizabeth
- Jun 16th, 2016
Increase consistency between analysis design and programming or activities
sripri
- May 2nd, 2007
The advantage of object-oriented modeling is the fact that objects encapsulate state expressed by attributes and behavior specified methods or operation and they are able to communicate by sending and...
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What is the memory allocation for pointer?
amar
- Aug 8th, 2007
Memory alllocation for pointer is same as unsigned integer.bcoz pointer variable stores the address of the variable to which it is pointing to regardless of its data type.for eg. char *charptr;int *intptr;here sizeof(charptr)==sizeof(intptr)
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How do you differentiate a constructor from a ordinary function?
shamli85
- Apr 2nd, 2010
1. Constructor always has its Class name.2. No return types3. can't be final or static
Ashwani Kabra
- Mar 21st, 2007
There are three differences. 1. In Java constructor has its class name. that can be unique. In .NET it has "NEW" by name. 2.It does not have any return type. 3. It cannot be subclass.
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How can I find out how much memory is available?
Yashwant S pinge
- Mar 27th, 2006
In linux there is a memory debugging tool valgrind.With the help of valgrind, you can easily check the memory allocation or memory deallocation.
yogeshpanda
- Sep 21st, 2005
By using the " sizeof operator " we can calculate the total number of memory allocated to the program`s variables.
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Talk sometiming about profiling?
zdmytriv
- Jan 24th, 2008
A profiling is a performance analysis tool that measures the behavior of a program as it runs, particularly the frequency and duration of function calls.
prasad
- Mar 11th, 2006
Profiling means performance measurement.Usually in analysis and design of algorithms we use term profiling.Profiling gives actual time taken by the system to execute the algorithm and sizeof the algorithms.
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What is Memory Alignment?
stylonurus
- Jan 9th, 2011
One way to align global or static variables is to use the __align qualifier. I got this example from an IBM Linux Compiler site. I think aligning data may be compiler dependant. In this example t...
RyanJames
- May 8th, 2007
Memory alignment is the restriction imposed on memory allocation in such a way that values associated with multibyte get assigned only at certain places of memory. Such Memory alignment though general...
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Difference between "printf" and "sprintf".
KishoreKNP
- Dec 4th, 2009
Printf and sprintf both will do the same work, but printf outputs on stdout(moniter) where as sprintf() printf the output in a string
vmshenoy
- Jan 9th, 2007
printf is the standart function in (c) programming language library for printing formatted output.egprintf writes the resulting string to the standard output(remember, Awk has...
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What is "map" in STL?
satish_sudi
- Jun 25th, 2007
Map is associated type of container type defined in STL. Which store the pair of values as element as "Key" and "Value".Ex: Pair of elements like PersonName:IDno can be stored...
dasam
- Apr 12th, 2007
"map" is the hash table implementation in STL (Standard Template Library). Different types of 'map' are available in STL container class.(a) map(b) multimap
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Give 2 examples of a code optimization.
nancyphilips
- May 8th, 2007
I am giving below another example of code optimization you can follow for C++ program. As we all know prefix operators apply the operations of incrementing or decrementing as specified and the new val...
blenda
- May 8th, 2007
I am giving one example of code optimization you can follow for C++ program which is a OOPS programming language. exforsys e1; if (c1) e1 = w;In th...
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What shall I go for Package Diagram?
christia
- May 8th, 2007
The Package Diagram depicts system’s packages and their dependencies in a clear and precise manner. So if your system is very large then it is mandatory that all these must be represented in a c...
blenda
- May 8th, 2007
When you have the need for organizing use case diagrams and class diagrams you can make use of Package Diagram.
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What is Polymorphism?
whenkeys
- Aug 11th, 2008
Poly [many] morph [form] as the name says many forms is supported. Two types of Polymorphism are operator overloading and function overloading.operator overloading => +operator can be implemented t...
SHAKTI KUMAR
- Oct 16th, 2005
A property by which we can send the same masage to objects of serval diffrent class and each object can response in a diffrent way depending on its class..
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Comment: C++ "includes" behavior and java "imports"
whenkeys
- Aug 11th, 2008
Both behave the same way except that when we import in java we can import single class also but we have to include a file and not a Class in C++.eg: import java.lang ...
r.praveenkumar
- Mar 20th, 2008
By using include preprocessor kn c++ the program size will be slightly increased but when we use import statement in java the program size will not be increased at all
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How do you represent static members and abstract classes in Class Diagram?
SKPasu
- Aug 19th, 2010
Abstract classes and pure virtual functions are represented by writing their names in italics.An abstract class can also be marked with the {abstract} property. i.e
you can write this {abstract} besides the abstract class name.Static members are represented as underlined members.
Regs,PSKPNVRKPrasad
- Jul 20th, 2009
Abstract classes: They are modeled with their names in italicsStatic Members: They are modeled with an underline
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What are the differences between malloc() and calloc()?
reet_dhiman
- Mar 16th, 2007
Hey the above mentioned both reasons r same and correct .but other than this there one minor difference between both that si with their default storage:malloc() stores garbage values by default n calloc() contains all zeros by default
yogeshpanda
- Sep 19th, 2005
The basic difference between the malloc() and the calloc() is that malloc() takes one arrgument and the calloc() takes two arrguments.
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Can we specify variable field width in a scanf() format string? If possible how?
RobertREvans76
- Dec 3rd, 2010
No, only a constant is acceptable. However, it is possible to construct the format string on fly with the desired field width, e.g., char format[20]; sprintf(format, "%%%ds", sizeof(buff)-1)...
Ajay K
- Jul 1st, 2007
Yes . e.g. scanf ("%10s", str ); only 10 chars would be taken in
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Out of fgets() and gets() which function is safe to use and why?
subashrivasudevan
- Dec 16th, 2009
Fgets() is safer as it does bounds checking. scanf & gets dont do so
Ajay K
- Jul 1st, 2007
gets does NOT check the size of the buffer and overflow on the stack can occour. Because of this, you should use fgets in preferance.
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What is a far pointer? where we use it?
laxmii.s
- Aug 20th, 2008
Far pointer is a pointer variable. It is just like near pointer. But if we use large memory models, then we can use these far pointers. Because these?far pointers?occupy 4 bytes of memory.
Vikas
- Jan 3rd, 2007
Near, far pointers are the types of pointers in C. By using these pointers we can directly access memory to interact hardware before starting hardware programming in C.
OOPS Interview Questions
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