Memory management inward C
The C programming linguistic communication manages retention statically, automatically, or dynamically.
Static-duration variables are allocated inward mind memory, ordinarily along amongst the executable code of the program, too persist for the lifetime of the program
Automatic-duration variables are allocated on the stack too come upward too become every bit functions are called too return.
For static-duration too automatic-duration variables, the size of the resources allotment is required to hold upward compile-time constant.
Dynamic retention resources allotment inward which retention is to a greater extent than explicitly (but to a greater extent than flexibly) managed, typically, yesteryear allocating it from the heap, an expanse of retention structured for this purpose.
In C, the library business office malloc is used to allocate a block of retention on the heap. The computer programme accesses this block of retention via a pointer that malloc returns. When the retention is no longer needed, the pointer is passed to costless which deallocates the retention thence that it tin give notice hold upward used for other purposes.
Functionality of Operating System?
An operating organisation (OS) is a laid of software that manages reckoner hardware resources too provides mutual services for reckoner programs.
To human activeness every bit interface betwixt hardware too users, an operating organisation must hold upward able perform the next functions:
1. Enabling startup application programs. Thus, the operating organisation must have:
- Influenza A virus subtype H5N1 text editor
- Influenza A virus subtype H5N1 translator
- An editor of links
- Influenza A virus subtype H5N1 text editor
- Influenza A virus subtype H5N1 translator
- An editor of links
2. The resources allotment of resources needed to execute programs is done yesteryear identifying: the programs that are running, the ask for memory, peripheral devices too information protection requirements.
3. Facilities for information compression, sorting, mixing, cataloging too maintenance of libraries, through utility programs available.
4. Plan implementation plant according to sure enough criteria, for efficient exercise of primal processing unit.
5. Assisting implementation of programs through computer-user communication system, at both hardware too software level.
Examples of operating systems:BS2000,BS3000,DOS,PC-DOS,MS-DOS,LINUX,SOLARIS,MAC OS,UNIX,WINDOWS
What the exercise of IP address
An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating inward a reckoner network that uses the Internet Protocol for communication.An IP address serves ii principal functions: host or network interface identification too location addressing
What is divergence betwixt UNIQUE too PRIMARY KEY constraints?
A UNIQUE constraint is like to PRIMARY key, but yous tin give notice create got to a greater extent than than 1 UNIQUE constraint per table. Contrary to PRIMARY key UNIQUE constraints tin give notice convey NULL but but once. If the constraint is defined inward a combination of fields, too thence every champaign tin give notice convey NULL too tin give notice create got around values on them, every bit long every bit the combination values is unique.
What are the steps involved inward designing?
What are the steps involved inward designing?
Project plan, Requirements, Design, Coding, Testing, Re-coding too design, Development, Maintenance.
what is the divergence betwixt interface too multiple interface?
what is the divergence betwixt interface too multiple interface?
Both an abstract degree too an interface are specific types of reckoner objects that allow a programmer to loosely define 1 type of object every bit if it were around other type, spell retaining all of the object's master copy properties. While multiple unlike reckoner languages exercise 1 or both of these concepts, Java is the most well-known. Abstract classes too interfaces create got a multifariousness of similarities, but every bit good contain pregnant differences inward structure, syntax, too usage.
How tin give notice nosotros delete Duplicate row inward table?
How tin give notice nosotros delete Duplicate row inward table?
SQL> delete from table_name where rowid non inward (select max(rowid) from tabular array grouping yesteryear duplicate_values_field_name);
When produce yous exercise SQL Profiler?
SQL Profiler utility allows us to basically rail connections to the SQL Server too every bit good decide activities such every bit which SQL Scripts are running, failed jobs etc..
SQL Profiler utility allows us to basically rail connections to the SQL Server too every bit good decide activities such every bit which SQL Scripts are running, failed jobs etc..
What produce yous meant yesteryear active too passive objects?
Active objects are 1 which instigate an interaction which owns a thread too they are responsible for treatment command to other objects. In uncomplicated words it tin give notice hold upward referred every bit client.
Passive objects are one, which passively waits for the message to hold upward processed. It waits for around other object that requires its services. In uncomplicated words it tin give notice hold upward referred every bit server.
Passive objects are one, which passively waits for the message to hold upward processed. It waits for around other object that requires its services. In uncomplicated words it tin give notice hold upward referred every bit server.
What produce yous meant yesteryear static too dynamic modeling?
Static modeling is used to specify construction of the objects that be inward the work domain. These are expressed using class, object too USECASE diagrams.
But Dynamic modeling refers representing the object interactions during runtime. It is represented yesteryear sequence, activity, collaboration too statechart diagrams.
But Dynamic modeling refers representing the object interactions during runtime. It is represented yesteryear sequence, activity, collaboration too statechart diagrams.
What is Program counter?
Program counter holds the address of either the outset byte of the adjacent education to hold upward fetched for execution or the address of the adjacent byte of a multi byte instruction, which has non been completely fetched. In both the cases it gets incremented automatically 1 yesteryear 1 every bit the education bytes larn fetched. Also Program register keeps the address of the adjacent instruction.
Can yous give an illustration of Stored Procedure?
CREATE physical care for - is a stored procedure, which is a saved collection of Transact-SQL statements that tin give notice convey too render user-supplied parameters.
Benefits of Stored Procedures?
Reduced client/server traffic
Efficient reuse of code too programming abstraction
Enhanced safety controls
Is XML case-sensitive?
Efficient reuse of code too programming abstraction
Enhanced safety controls
Is XML case-sensitive?
XML is instance sensitive when upper-case missive of the alphabet too lowercase characters are treated differently.
Element type names, Attribute names, Attribute values, All full general too parameter entity names, too information content (text), are case-sensitive.
Element type names, Attribute names, Attribute values, All full general too parameter entity names, too information content (text), are case-sensitive.
What is a Null object?
It is an object of around degree whose purpose is to betoken that a existent object of that degree does non exist. One mutual exercise for a zero object is a render value from a fellow member business office that is supposed to render an object amongst around specified properties but cannot honor such an object.
What is the belongings of class?
A belongings is a fellow member that provides access to an attribute of an object or a class. Examples of properties include the length of a string, the size of a font, the caption of a window, the get upward of a customer, too thence on.
Does a degree inherit the constructors of its super class?
A belongings is a fellow member that provides access to an attribute of an object or a class. Examples of properties include the length of a string, the size of a font, the caption of a window, the get upward of a customer, too thence on.
Does a degree inherit the constructors of its super class?
A degree does non inherit constructors from whatever of its super classes.
If a degree is declared without whatever access modifiers, where may the degree hold upward accessed?
A degree that is declared without whatever access modifiers is said to create got packet access. This way that the degree tin give notice exclusively hold upward accessed yesteryear other classes andinterfaces that are defined inside the same package
What produce yous hateful yesteryear Stack unwinding?
What produce yous hateful yesteryear Stack unwinding?
It is a physical care for during exception treatment when the destructor is called for all local objects betwixt the house where the exception was thrown too where it is caught.
Define precondition too post-condition to a fellow member function.
Define precondition too post-condition to a fellow member function.
Precondition: Influenza A virus subtype H5N1 status that should render truthful when a fellow member business office is invoked. In social club to exercise a business office correctly a precondition should render true. If a precondition fails to hold, an performance volition non convey responsibleness to perform whatever activeness of sensibility. For example, the interface invariants of stack degree answer nil virtually pushing fifty-fifty though the stack is already full. In this scenario, sinful () is a precondition for force operation.
Post-Condition: Influenza A virus subtype H5N1 status that should render truthful earlier returning from an invoked function. In social club to exercise a business office correctly a post service status should render true. Taking a stack every bit an example, is empty () must necessarily hold upward truthful subsequently pushing the chemical factor into the stack when an chemical factor is pushed. The business office is empty () is a post service condition.
How tin give notice yous form the elements of the array inward descending order?
Syntax
B = sort(A)
B = sort(A,dim)
B = sort(...,mode)
[B,IX] = sort(A,...)
Description
B = sort(A,dim)
B = sort(...,mode)
[B,IX] = sort(A,...)
Description
B = sort(A) sorts the elements along unlike dimensions of an array, too arranges those elements inward ascending order.
If Influenza A virus subtype H5N1 is a ... sort(A) ...
Vector Sorts the elements of A.
Matrix Sorts each column of A.
Multidimensional array Sorts Influenza A virus subtype H5N1 along the outset non-singleton dimension, too returns an array of sorted vectors.
Cell array of strings Sorts the strings inward ascending ASCII lexicon order, too returns a vector prison theatre cellular telephone array of strings. The form is case-sensitive; upper-case missive of the alphabet letters seem inward the output before lowercase. You cannot exercise the dim or fashion options amongst a prison theatre cellular telephone array.
If Influenza A virus subtype H5N1 is a ... sort(A) ...
Vector Sorts the elements of A.
Matrix Sorts each column of A.
Multidimensional array Sorts Influenza A virus subtype H5N1 along the outset non-singleton dimension, too returns an array of sorted vectors.
Cell array of strings Sorts the strings inward ascending ASCII lexicon order, too returns a vector prison theatre cellular telephone array of strings. The form is case-sensitive; upper-case missive of the alphabet letters seem inward the output before lowercase. You cannot exercise the dim or fashion options amongst a prison theatre cellular telephone array.
Sort - Sort array elements inward ascending or descending order
Integer, floating-point, logical, too grapheme arrays are permitted. Floating-point arrays tin give notice hold upward complex. For elements of Influenza A virus subtype H5N1 amongst identical values, the social club of these elements is preserved inward the sorted list. When Influenza A virus subtype H5N1 is complex, the elements are sorted yesteryear magnitude, i.e., abs(A), too where magnitudes are equal, farther sorted yesteryear stage angle, i.e., angle(A), on the interval [??, ?]. If Influenza A virus subtype H5N1 includes whatever NaN elements, form places these at the high end.
B = sort(A,dim) sorts the elements along the dimension of Influenza A virus subtype H5N1 specified yesteryear a scalar dim.
B = sort(...,mode) sorts the elements inward the specified direction, depending on the value of mode.
'ascend'
Ascending social club (default)
'descend'
Descending order
[B,IX] = sort(A,...) every bit good returns an array of indices IX, where size(IX) == size(A). If Influenza A virus subtype H5N1 is a vector, B = A(IX). If Influenza A virus subtype H5N1 is an m-by-n matrix, too thence each column of IX is a permutation vector of the corresponding column of A, such that
for j = 1:n
B(:,j) = A(IX(:,j),j);
end
If Influenza A virus subtype H5N1 has repeated elements of equal value, the returned indices preserve the master copy ordering.
B = sort(...,mode) sorts the elements inward the specified direction, depending on the value of mode.
'ascend'
Ascending social club (default)
'descend'
Descending order
[B,IX] = sort(A,...) every bit good returns an array of indices IX, where size(IX) == size(A). If Influenza A virus subtype H5N1 is a vector, B = A(IX). If Influenza A virus subtype H5N1 is an m-by-n matrix, too thence each column of IX is a permutation vector of the corresponding column of A, such that
for j = 1:n
B(:,j) = A(IX(:,j),j);
end
If Influenza A virus subtype H5N1 has repeated elements of equal value, the returned indices preserve the master copy ordering.
Example:Sort horizontal vector A:
A = [78 23 10 100 45 five 6];
sort(A)
ans =5 vi 10 23 45 78 100
A = [78 23 10 100 45 five 6];
sort(A)
ans =5 vi 10 23 45 78 100
What is DOM?
The Document Object Model (DOM) is a cross-platform too language-independent convention for representing too interacting amongst objects inward HTML, XHTML too XML documents.[1] Objects inward the DOM tree may hold upward addressed too manipulated yesteryear using methods on the objects. The populace interface of a DOM is specified inward its application programming interface (API).
How macro execution is faster than business office ?
Difference betwixt overloading too overriding inward programming linguistic communication is:
a) In overloading, at that topographic point is a human relationship betwixt methods available inward the same degree whereas inward overriding, at that topographic point is human relationship betwixt a superclass method too subclass method.
b) Overloading does non block inheritance from the superclass whereas overriding blocks inheritance from the superclass.
c) In overloading, split methods portion the same get upward whereas inward overriding, subclass method replaces the superclass.
d) Overloading must create got unlike method signatures whereas overriding must create got same signature.
19.what produce yous hateful yesteryear realization inward oops, what is persistent, transient object.
Name the operators that cannot hold upward overloaded.?
There are five operators which cannot hold upward overloaded. They are:
.* - degree fellow member access operator
:: - orbit resolution operator
. - dot operator
?:: - conditional operator
Sizeof() - operator
Note:- This is possible exclusively inward C++.
What is polymorphism?
In programming languages, polymorphism way that around code or operations or objects comport differently inward unlike contexts.
For example, the + (plus) operator inward C++:
4 + five <-- integer addition
3.14 + 2.0 <-- floating dot addition
s1 + "bar" <-- string concatenation!
In C++, that type of polymorphism is called overloading.
Typically, when the term polymorphism is used amongst C++, however, it refers to using virtual methods, which we'll hash out shortly.
What are the differences betwixt a C++ struct too C++ class?
The default fellow member too base of operations degree access specifiers are different.
The C++ struct has all the features of the class. The exclusively differences are that a struct defaults to populace fellow member access too populace base of operations degree inheritance, too a degree defaults to the soul access specifier too soul base of operations degree inheritance.
Before interview Please Refer this next programming Questions
Write a Program for :
1.palindrome for string too number
2.String Reverse
3.Sum,Average of all the number
4.Prime no
5.Armstrong no
6.fibonacci
7.factorial
8.prime number,
Palindrome for string
#include
#include
main()
{
char a[100], b[100];
printf("Enter the string to banking concern check if it is a palindrome\n");
gets(a);
strcpy(b,a);
strrev(b);
if( strcmp(a,b) == 0 )
printf("Entered string is a palindrome.\n");
else
printf("Entered string is non a palindrome.\n");
return 0;
}
Palindrome expose inward c
main()
{
char a[100], b[100];
printf("Enter the string to banking concern check if it is a palindrome\n");
gets(a);
strcpy(b,a);
strrev(b);
if( strcmp(a,b) == 0 )
printf("Entered string is a palindrome.\n");
else
printf("Entered string is non a palindrome.\n");
return 0;
}
Palindrome expose inward c
#include
main()
{
int n, opposite = 0, temp;
printf("Enter a expose to banking concern check if it is a palindrome or not\n");
scanf("%d",&n);
temp = n;
while( temp != 0 )
{
reverse = opposite * 10;
reverse = opposite + temp%10;
temp = temp/10;
}
if ( n == opposite )
printf("%d is a palindrome number.\n", n);
else
printf("%d is non a palindrome number.\n", n);
return 0;
}
Reverse a string using C programming
main()
{
int n, opposite = 0, temp;
printf("Enter a expose to banking concern check if it is a palindrome or not\n");
scanf("%d",&n);
temp = n;
while( temp != 0 )
{
reverse = opposite * 10;
reverse = opposite + temp%10;
temp = temp/10;
}
if ( n == opposite )
printf("%d is a palindrome number.\n", n);
else
printf("%d is non a palindrome number.\n", n);
return 0;
}
Reverse a string using C programming
#include
#include
main()
{
char arr[100];
printf("Enter a string to reverse\n");
gets(arr);
strrev(arr);
printf("Reverse of entered string is \n%s\n",arr);
return 0;
}
/* Fibonacci Series c linguistic communication */
#include
main()
{
char arr[100];
printf("Enter a string to reverse\n");
gets(arr);
strrev(arr);
printf("Reverse of entered string is \n%s\n",arr);
return 0;
}
/* Fibonacci Series c linguistic communication */
#include
main()
{
int n, outset = 0, instant = 1, next, c;
printf("Enter the expose of terms\n");
scanf("%d",&n);
printf("First %d price of Fibonacci serial are :-\n",n);
for ( c = 0 ; c < n ; c++ )
{
if ( c <= 1 )
next = c;
else
{
next = outset + second;
first = second;
second = next;
}
printf("%d\n",next);
}
return 0;
}
Fibonacci serial computer programme inward c using recursion
#include
int Fibonacci(int);
main()
{
int n, i = 0, c;
scanf("%d",&n);
printf("Fibonacci series\n");
for ( c = 1 ; c <= n ; c++ )
{
printf("%d\n", Fibonacci(i));
i++;
}
return 0;
}
int Fibonacci(int n)
{
if ( n == 0 )
return 0;
else if ( n == 1 )
return 1;
else
return ( Fibonacci(n-1) + Fibonacci(n-2) );
}
Adding numbers inward c using function
int Fibonacci(int);
main()
{
int n, i = 0, c;
scanf("%d",&n);
printf("Fibonacci series\n");
for ( c = 1 ; c <= n ; c++ )
{
printf("%d\n", Fibonacci(i));
i++;
}
return 0;
}
int Fibonacci(int n)
{
if ( n == 0 )
return 0;
else if ( n == 1 )
return 1;
else
return ( Fibonacci(n-1) + Fibonacci(n-2) );
}
Adding numbers inward c using function
#include
long addition(long, long);
main()
{
long first, second, sum;
scanf("%ld%ld", &first, &second);
sum = addition(first, second);
printf("%ld\n", sum);
return 0;
}
long addition(long a, long b)
{
long result;
result = a + b;
return result;
}
long addition(long, long);
main()
{
long first, second, sum;
scanf("%ld%ld", &first, &second);
sum = addition(first, second);
printf("%ld\n", sum);
return 0;
}
long addition(long a, long b)
{
long result;
result = a + b;
return result;
}