FileHandling_2

//Encrypt Data Store in Text File

#include<stdio.h>
#include<conio.h>

void main()
{
    FILE *fp1, *fp2;
    char str[500];
    int i, ch;
    clrscr();

    //First Create a File. Path ->  C:/TurboC4/TC/Bin/
    fp1=fopen("LIS.txt","r");
    if(fp1==NULL)
    {
        printf("\n Opened");
        exit(1);
    }
    ch=fgetc(fp1);

    for(i=0;(i<500)&&(feof(fp1)==0);i++)
    {
        str[i]=(char)ch;
        ch=fgetc(fp1);
    }

    str[i]='\0';
    printf("\n Actual Data : %s ", str);
    fclose(fp1);

    //Encrypted Data File Created
    fp2=fopen("Hello.txt","w");

    if(fp2==NULL)
    {
        printf("\n Opened");
        exit(1);
    }

    for(i=0;i<str[i];i++)
    {
        str[i]=str[i]-2;
        fputc(str[i],fp1);
    }
    printf("\n Encrypt Data : %s", str);
    fclose(fp2);
    getch();
}