C Programming

Ownership/Entrepreneurship, Placement, Exploratory, and Research.

It refers to a place in your code where names or variable have meaning.

#include<stdio.h>

#include<stdlib.h>

int main()

{

FILE *fp;

char a[60],b[60];

printf("Enter the name of the file\n");

scanf("%s",a);

fp=fopen(a,"a+");

printf("Enter a single line to append to the file %s :\n",a);

scanf(" %[^\n]s",b);

fprintf(fp,"%s",b);

printf("Append Successfully to the file %s",a);

fclose(fp);

return 0;

}

A High level language is a language like C, Pascal, Fortran. To convert, the easiest way is to use a compiler.

A compiler will take the instructions written in a high level language and convert them into machine code which is the specific instruction set for that type of computer. Assembly language is just a human readable form of a machine code which is how the designers of the computer instruction set made it work.

A disassembler will show the assembly language from machine code. But the compiler usually includes a lot of optimisations from a the high level language and will not often generate very simple assembly.

void main()

{

//variable declaration

int a;

int b;

printf("\n Enter the first value");

scanf("%d",&a);

printf("\n Enter the second value");

scanf("%d",&b);

a=a+b;

b=a-b;

a=a-b;

printf("\n After swap the value");

printf("\n value of A=%d",a);

printf("\n value of A=%d",b);

getch();

}

Computer Configuration node, Windows settings folder, security settings node.

Because they are completely unrelated things? Synchronization can be implemented with semaphores or mutexes.

Abstraction: Abstraction refers to removal/reduction of irrelevant data or unnecessary data or confidential data from a Class. Data hiding: Data hiding is a feature provided by the abstraction for hiding the data from the class.

A variable is a named storage location that can hold any data value. A variable has two associated values ; r value and l value.

Variable stored in the memory block inside the RAM. whenever we declare a variable it would take space in main memory and consume it's size from RAM.

#include<stdio.h> #include<unistd.h> #define SIZE 3000; void main() { int a[5][5],row,columns,i,j; printf("Enter the order of the matrix(5*5)"); scanf("%d %d",&row,&columns); printf("Enter the element of the matrix\n"); for(i=0;i<row;i++) for(j=0;j<columns;j++) { scanf("%d", &a[i][j]); } printf("3-tuple representation"); for(i=0;i<row;i++) for(j=0;j<columns;j++) { if(a[i][j]!=0) { printf("%d %d %d", (i+1),(j+1),a[i][j]); } } getchar(); }

/* Discrete Fourier Transform and Power Spectrum Calculates Power Spectrum from a Time Series Copyright 1985 Nicholas B. Tufillaro */ #include #include #define PI (3.1415926536) #define SIZE 512 double ts[SIZE], A[SIZE], B[SIZE], P[SIZE]; main() { int i, k, p, N, L; double avg, y, sum, psmax; /* read in and scale data points */ i = 0; while(scanf("%lf", &y) != EOF) { ts[i] = y/1000.0; i += 1; } /* get rid of last point and make sure # of data points is even */ if((i%2) == 0) i -= 2; else i -= 1; L = i; N = L/2; /* subtract out dc component from time series */ for(i = 0, avg = 0; i < L; ++i) { avg += ts[i]; } avg = avg/L; /* now subtract out the mean value from the time series */ for(i = 0; i < L; ++i) { ts[i] = ts[i] - avg; } /* o.k. guys, ready to do Fourier transform */ /* first do cosine series */ for(k = 0; k <= N; ++k) { for(p = 0, sum = 0; p < 2*N; ++p) { sum += ts[p]*cos(PI*k*p/N); } A[k] = sum/N; } /* now do sine series */ for(k = 0; k < N; ++k) { for(p = 0, sum = 0; p < 2*N; ++p) { sum += ts[p]*sin(PI*k*p/N); } B[k] = sum/N; } /* lastly, calculate the power spectrum */ for(i = 0; i <= N; ++i) { P[i] = sqrt(A[i]*A[i]+B[i]*B[i]); } /* find the maximum of the power spectrum to normalize */ for(i = 0, psmax = 0; i <= N; ++i) { if(P[i] > psmax) psmax = P[i]; } for(i = 0; i <= N; ++i) { P[i] = P[i]/psmax; } /* o.k., print out the results: k, P(k) */ for(k = 0; k <= N; ++k) { printf("%d %g\n", k, P[k]); } }

*

**

***

****

simply use dis...

{

int x,y;

for(x=1;x<=4;x++)

{

for(y=1;y<=x;y++)

printf("*");

printf("\n");

}

}

String data type allows unlimited character intput

scanf ("%[^\n]s", sentence);

i can't answer it

Java compiler available on multiple platforms, the class files it generates are platform-independent.

Nothing, but as a file-extension it means backup.

#include<stdio.h>

int main()

{

int d,j=1,i,flag=0,count=0,k=0;

int b[];

char a[],c;

printf("enter the number=");

scanf("%s",a);

printf("enter the digit=");

scanf("%c",&c);

printf("the place value of given digit is:");

for(i=0;a[i]!='\0';i++)

{

if(a[i]==c)

{

b[k]==a[i]-'0';

b[k]=b[k]=*j;

flag=1;

count++;

k++;

}

j=j*10;

}

if(flag==1)

{

printf("the place value of given digit %c is:",c);

for(i=0;i<count;i++)

printf("\n%d",b[i]);

}

else

printf("your entered digit is not present in number");

return 0;

}