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Showing posts with the label C

Program to find current date and time

#include <time.h> #include <stdio.h>   main()   {     struct tm *ptr;     time_t lt;     lt = time(NULL);     ptr = localtime(&lt);     printf(asctime(ptr));     getch();     //return 0;   }
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Array Implementation of a Stack in C Programming

#include <stdio.h> #include <stdlib.h> #define MAX 10 void insert(int queue[], int *rear, int value) {    if(*rear < MAX-1)    {       *rear= *rear +1;       queue[*rear] = value;    }    else    {       printf("The queue is full can not insert a value\n");       exit(0);    } } void delete(int queue[], int *front, int rear, int * value) {    if(*front == rear)    {       printf("The queue is empty can not delete a value\n");       exit(0);    }    *front = *front + 1;    *value = queue[*front]; } main() {    int queue[MAX];    int front,rear;    int n,value;    front = rear = -1;    insert(queue,&rear,1);    insert(queue,&rear,2);    delete(queue,&front,rear,&value);    printf("The value deleted is %d\n",value);        getch(); }
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Program to multiply a 3x5 array by a scalar method

#include<stdio.h> void scalar_multiply(matrix,scalar) int matrix [3][5]; int scalar; {     int row, column;     for(row=0;row<3;++row)     for(column=0;column<5;++column)     {        matrix[row][column]*=scalar;     } } //second function void display_matrix(matrix) int matrix[3][5]; {     int row,column;     for(row=0;row<3;++row)     for(column=0;column<5;++column)        {        printf("%5d",matrix[row][column]);        }        printf("\n"); } //main starts here main() {       static int sample_matrix[3][5]=       {              {7,16,55,13,12},              {12,10,52,0,7},              {-2,1,2,4,9}       };       printf("Original matrix :\n");       display_matrix(sample_matrix);       scalar_multiply(sample_matrix,2);       printf("\nMultiplied by 2 :\n");       display_matrix(sample_matrix);       scalar_multiply(sample_matrix,-1);       pri
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Program to find the primes upto entered number

#include<stdio.h> main() {       unsigned index, pcnt=0;       int max;       printf("Enter integer N upto which primes are to be find :");       scanf("%u",&max);       if(max>0)       {          printf("Prim nos. upto %u.\n",max);          {          for(index=1;index<=max;index++)             if(isprime(index))      //calling the function             {               printf("%u\n",index);               pcnt++;             }          }       }       printf("\nNumber of primes = %u",pcnt);       getch(); } //function defining here  (main is giving 1 to 10 numbers //"if max=10 in main" for the variable num) int isprime(unsigned num) {     unsigned index,sq;       if((num==1)||(num==2)||(num==3))       {       return 1;     //it returns true i.e.,num=1 or num=2 or num=3       }     else       sq=sqrt((double)num);       for(index=2;index<=sq;
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Program to demonstrate the use of getchar() at the place of scanf

#include<stdio.h> #include<conio.h> main() {       int c;       printf("\nType a character : ");       c=getchar();       printf("\nTyped character is %c",c);       printf("\nTyped character is %d",c);       getch(); }
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Declared a variable in c without defining it

extern int a;   Please note that uninitialized extern variables are example of declaration of variables.
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Program to draw a rectangle

#include<graphics.h> #include<conio.h> void main() {     int gd=DETECT, gm;     initgraph(&gd, &gm, "c:\\turboc3\\bgi " );     rectangle(200,50,350,150);      getch();     closegraph(); }
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What is Compiler?

Compiler is Application Program which converts the source program code (user code) to target code (machine understandable code). It also creates the executable files with .exe extensions. Some of the C++ Compilers are Borland C++, Turbo C++, Microsoft C++, Developer C++ etc. For any program compilation in C++ we should have to write the file name with the extension .CPP. In the process of Compilation if any error will occur the compilation process will automatically be stop and after 100% correctness, compiler will create .exe file. 
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Write a C program without using any semicolon which outputs Hello Word

There are many ways to do this:-   Solution: 1   void main(){     if(printf("Hello world")){     } }   Solution: 2   void main(){     while(!printf("Hello world")){     } }
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Program to print the hexa and octal number

#include<stdio.h> #include<conio.h> main() {       int x=735;       short int y=40;       unsigned int u=0xf179;       float f=49.759;       double d=99.4321;       char c='k';              printf("Integer printing");       printf("\nInteger : %d, Octal : %o, Hexadecimal : %x",x,x,x);       printf("\nInteger : %d, Octal : %o, Hexadecimal : %x",y,y,y);       printf("\nUnsigned");       printf("\nInteger : %d, Octal : %o, Hexadecimal : %x",u,u,u);       printf("\nFloating point printing");       printf("\n%f   %e",f,f);       printf("\n%.2f    %.2e",f,f);       printf("\nCharacter Printing");       printf("\n%c",c);       getch(); }
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Subtract two integer numbers without using subtraction operator

void main(){     int a,b,d;     scanf("%d%d",&a,&b);     d=a+~b+1;     printf("%d",d);     getch(); }
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Program to input 10 numbers and print with serial number

#include<stdio.h> main() { int i,response[11]; //start taking values     for(i=1;i<=10;++i)        {        scanf("%d",&response[i]);        } //start printing values     printf("\nRating    Number you inputed");     printf("\n---------------------------\n");     for(i=1;i<=10;++i)        {        printf("%d\t\t",i);        printf("%d\n",response[i]);        } getch();      }
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File operation functions in C

There are following functions supported by C Programming:-   fopen(): Creates a new file for use and opens a new existing file for use. fclose(): Closes a file which has been opened for use. getc():    Reads a character from a file putc():    Writes a character to a file fprintf(): Writes a set of data values to a file fscanf(): Reads a set of data values from a file getw(): Reads a integer from a file putw():    Writes an integer to the file fseek(): Sets the position to a desired point in the file ftell(): Gives the current position in the file rewind(): Sets the position to the begining of the fi
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Program to print the link list value

# include <stdio.h> # include <stdlib.h>    struct node    {        int data;        struct node *link;    };    struct node *insert(struct node *p, int n){       struct node *temp;       if(p==NULL){           p=(struct node *)malloc(sizeof(struct node));          if(p==NULL) {              printf("Error\n");              exit(0);          }          p-> data = n;          p-> link = p;       } else {          temp = p;          while (temp-> link != p)             temp = temp-> link;             temp-> link = (struct node *)malloc(sizeof(struct node));             if(temp -> link == NULL){                printf("Error\n");                exit(0);             }             temp = temp-> link;             temp-> data = n;             temp-> link = p;           }           return (p);    }    void printlist ( struct node *p )    {       struct node *temp;
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Pointer Using Array in C Programming

#include<stdio.h> #include<conio.h> int array_sum(array,n) int array[]; int n; {     int sum=0,*ptr;     int *array_end=array+n;     ptr=array;     for(;ptr<array_end;++ptr)    //or for(ptr=array;ptr<array_end;++ptr)     sum+=*ptr;     return (sum); } main() {       static int values[10]={3, 7, -9, 3, 6, -1, 7, 9, 1, -5};       printf("The sum is %d\n",array_sum(values,10));       getch(); }
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Program to find the sin cos tan value using math dot h

#include <math.h> #include <stdio.h> main()   {     double val = 30;     do {       printf("Cosine of %.f is %.2f\n", val, sin(val));       val += 5;     } while(val<=100);     //return 0;     getch();   }
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Program to use fprintf() and getc()

#include<stdio.h>  main()  {  int n,i; printf("\nEnter to print table (maximum) range :"); scanf("%d",&n); FILE *table; //will print the table in file named table.txt table=fopen("table.txt","w"); for(i=0;i<=n;i++) fprintf(table,"%d\n",i); fclose(table); //will print the table on screen table=fopen("table.txt","r"); char c; while((c=getc(table))!=EOF) printf("%c",c); fclose(table); getch(); }
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What is Inheritance?

Usually we use to say that his father is criminal so he will also be a criminal. That means son is inheriting his father's mottos, not all but he will some. In Class, there could be many sub-classes and all sub-classes inherit the properties of main class. So, Inheritance is the terminology to inherit some (not all) properties of its main class.
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Create new file to write and then open it for read

#include<stdio.h> main() {       FILE *f1;       char c;       printf("\nData input.\n");       f1=fopen("Input","w");       while((c=getchar())!=EOF)       putc(c,f1);       fclose(f1);       printf("\nData output.\n");       f1=fopen("Input","r");       while((c=getc(f1))!=EOF)       printf("%c",c);       fclose(f1);       getch(); }
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Program to print the quadratic equation

#include<stdio.h> #include<conio.h> #include<math.h> main() { float a,b,c,d,k,x,y; clrscr(); printf("Enetr the values of a,b,c=>"); scanf("%f %f %f",&a,&b,&c); d=((b*b)-(4*a*c)); k=sqrt(d); x= (-b+k)/(2*a); y= (-b-k)/(2*a); printf("The quadratic equation is x=%f and y=%f",x,y); getch(); }
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Popular posts from this blog

Migrating database from ASP.NET Identity to ASP.NET Core Identity

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As you know ASP.NET Core Identity (table structure) is different from what we had earlier in ASP.NET Identity. Actually the identity system which we have today with .NET Core is very mature and continuously evolved be it ASP.NET Membership, ASP.NET Identity 1, ASP.NET Identity 2 and now ASP.NET Core Identity. Recently I had to migrate few application to ASP.NET Core and similar its identity database. Because the table schema is changed, i had to re-think and create migration script which I would like to share with you today. It is very simple and easy, just three step and I had everything ready: STEP 1 : Change name of existing tables STEP 2 : Create ASP.NET Core Identity tables STEP 3 : Migrate data from old tables (ASP.NET Identity) to new tables (ASP.NET Core Identity) Script:  https://gist.github.com/itorian/c699e8534b392a6c726ec66c48100072 You should also watch my video, where I demoed migration.
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Customize User's Profile in ASP.NET Identity System

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Note: You should read this post instead, I found below walkthrough will not work on ASP.NET Identity 2. I will re-work on this post soon. In this post you will learn how to customize User’s Profile and add some more fields like FirstName, LastName, EmailID etc with ASP.NET Identity System. In my last post I listed some of the great new features introduced with Identity system .
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Lambda two tables and three tables inner join code samples

In this blog post you will learn inner join using lambda queries. There will be two samples, in first sample you will see how you can join two tables and in second sample you will see how you can extend even further to join three tables and so on. I will sample in-memory data, but the same implementation will work with IQueryable (lazy query) too. Here's the code snippet:- namespace ConsoleApp1 {     class Program     {         static void Main()         {             var table1 = new List<Table1>();             table1.Add( new Table1 { Id = 1, Name = "Name 1" , Address = "Address 1" });             table1.Add( new Table1 { Id = 2, Name = "Name 2" , Address = "Address 2" });             table1.Add( new Table1 { Id = 3, Name = "Name 3" , Address = "Address 3" });             table1.Add( new Table1 { Id = 4, Name = "Name 4" , Address = "Address 4" });   
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