March 2014 ~ BCA NOTES

Thursday, 27 March 2014

Static keyword

The static keyword can be used to declare variables, functions, class data members and class functions. By default, an object or variable that is defined outside all blocks has static duration and external linkage. Static duration means that the object or variable is allocated when the program starts and is deallocated when the program ends. External linkage means that the name of the variable is visible from outside the file in which the variable is declared. Conversely, internal linkage means that the name is not...

- input output stream header file

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<iostream.h>- input output stream header file Provides functionality to use an abstraction called streams specially designed to perform input and output operations on sequences of character, like files or strings. Objects cin, cout are from iostream header. <conio.h> console input output header file conio.h is a C header file used in old MS-DOS compilers to create text user interfaces Both are header files which contains libery of serveral functions (use for input...

Structure with array

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#include<iostream.h> struct stud { char name[20],mo[10],cou[10],age[3]; }d[10]; main() { int a; for(a=1;a<=3;a++) { cout<<"Enter your name:-"; cin.getline(d[a].name,20); cout<<"Enter age:-"; cin.getline(d[a].age,3); cout<<"Enter your mobile no:-"; cin.getline(d[a].mo,10); cout<<"Enter your course:-"; cin.getline(d[a].cou,10); } cout<<"-----------------------------"<<endl; cout<<"-----------------------------"<<endl; for(a=1;a<=3;a++) { cout<<"Info...

Passing Pointer to an Array

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#include<iostream.h> main() { int a[5]; int *pt; pt=a; *pt=a[0]=10; pt++; *pt=a[1]=20; pt++; *pt=a[2]=30; pt++; *pt=a[3]=40; pt++; *pt=a[4]=50; pt++; for ( int i=0;i!=5;i++) { cout<<a[i]<<"\n"; } ...

Passing Pointer to an Array

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#include<iostream.h> main() { int a[5]; int *pt; pt=a; for(int p=0;p<5;p++) { cout <<"Enter Value to be insterted in "<<p<<" Index:"; cin>>*pt; a[p]=*pt; } cout<<"Value at O Index:"<<a[0]<<"\n"; cout<<"Value at 1 Index:"<<a[1]<<"\n"; cout<<"Value at 2 Index:"<<a[2]<<"\n"; cout<<"Value at 3 Index:"<<a[3]<<"\n"; cout<<"Value at 4 Index:"<<a[4]<<"\n"; //cout<<"Value at O Index:"<<a[5]<...

Swapping two number Using Pointer C++

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#include<iostream.h> main() { int a,b,c; int *i,*j; cout<<"Enter integer:"; cin>>a; i=&a; cout<<"Enter integer:"; cin>>b; j=&b; c=*i; a=*j; b=c; cout<<a<<b; ...

Factorial of any Number using Class & Object.

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#include<iostream.h>class factorial { public: int count,n,fact; public: void fun() { cout<<"Enter The No. :\n"; cin>>n; count=1; fact=1; while(count!=n) { count++; fact = fact * count; } cout<<"Factorial Value is :\n"<<fact<<endl; } };main() { class factorial f1; f1.fun(); }...

Alter with drop to remove a column

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ALTER Oracle

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Alter This command is used to modify table.Add(Keyword)...

Update

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here in oracle ...

to update salary

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Update

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update rkbsal set sal =30000,ename='HIJACK',eno=007;...

Update command

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UPDATE means to modify is used to change the content of data.UPDATE is Used With ALWAYS SET.Example:- ...

oracle to show as per condition ( with use of And )

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error

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error oracle...

where k is a word to find name with and here like is a clause

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Delete using where clause

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Delete using ...

create a table

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delete all content of a table

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Command to create a table

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To delete a table from oracle use Using Drop Command

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i...

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Oracle to show the table with table name rkbsal4 Here Rkbsal is table name...

create a table where you select some record from existing table

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table ...

Oracle How to Make other table with no data

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oracle table create new using old fields data

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Oracle use of * or all

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Oracle Insert a Coloumn /Row

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use of Order of command

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aipur...

use of Distinct with coloumn name or no.

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arrange in decreasing order

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command order by use in oracle

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cPP Notes download from here

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http://s3.amazonaws.com/wcsource/727866_635295906484577955.pdf?AWSAccessKeyId=0WATX2TYP6SVTPNM1W82&Expires=1394023008&Signature=6fIW%2FJkfBrc5%2FX7qcvkTWB8CQX4%3D ...

Bca CPP Notes

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you can download it from herehttp://www.wiziq.com/tutorial/727866-BCA_2nd_OOPs_Using_C-_Notes...

c++ notes

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Tuesday, 4 March 2014

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What is Different between subroutine and interrupt service routin...

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Draw the structure of memory hierarchy with respect to cost, speed access time. describe the organization of a typical RAM chips .. What is virtual memory ? How it impleme...

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Describe the three data transfer modes (1) programmed I/o (2) interrupt initiated i/o (3) DMA Why does DMA have priority over the cpu when both request a memory transfer? What do you mean by fault tolerance ? What are MTTF and MTTR? Why do we need DMA ? Draw the typical block diagram of a DMA controller and explain how it is used for direct data transfer between memory and peripherals...

computer architecture & org

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Give the features of ROM cell. List the differrnce between statics Ram dynamic Ram. What is translation look side buffer Define memory access time , memory cycle time , data transfer rate.. Define cache memory.. Define memory latency and memory bandwidth. What is ROM? Write about PRom ,eprom ,and eeprom....

computer architecture and organization

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Describe von nuemann architecture in detail. With a neat block diagram explain in detail about the basic block diagram of computer architecture ? With a neat block diagram explain the Accumulator based cpu. What are micro program and micro instruction . State the difference between hardwired control and micro program control. Define control word(Cw) and control memory.. How do we measure the performance of a compute...

computer architecture & organization please submit as early

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Define computer architecture and organization ? Discuss the stored program concept. What is bus? What are different buses in cpu? write the general formats for the fixed point & floting numbers? Define addressing mode. Explain the different types oc addressing mode with suitable examples.. What are different computer register and their purposes? Compare CISC V/s RISC? How BCD addition and subtraction is done. Give example? Find 1's and 2's compliment of (1011110101110)2 what is subroutine and subroutine call? Write Notes on instruction...