#include<stdio.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#define FILENAME "PHONEBOOK.PHN"
/* structure of PhoneBook datatype */
struct PhoneBook{
char name[100];
char address[200];
int phoneNo;
char email[100];
};
void mainMenu(); /*display main menu*/
void addContact(FILE *fp); /*add new contact*/
void readContacts(FILE *); /*read contacts from file*/
void deleteContact(FILE *); /*delete contacts from file*/
void modifyContact(FILE *); /*modify contacts from file*/
PhoneBook basicDetails(char[]); /*takes input for one contact object*/
void searchContact(FILE *); /*search contact from file*/
int checkForMatch(char[],char[]); /*helper method for searchContact()*/
void menuDesign(char[]); /*display header */
void showMessage(char[]); /*display message*/
void pressForMainMenu(); /* returns to main menu */
void fileOpen(FILE *);
void fileClose(FILE *);
main(){
system("cls");
mainMenu();
}
void mainMenu(){
printf("\n\n\n\n\n\t\tLOADING . PLEASE WAIT....");
FILE *fp;
fp=fopen(FILENAME,"rb+");
if(fp==NULL){
fp=fopen(FILENAME,"wb+");
if(fp==NULL){
printf("CANNOT OPEN THE FILE");
}
}
system("cls");
int choise;
char ch;
int result;
printf("\n\n");
menuDesign("PHONEBOOK MANAGMENT SYSTEM");
printf("\n\t\t1. ADD NEW CONTACT");
printf("\n\t\t2. VIEW ALL CONTACTS");
printf("\n\t\t3. SEARCH CONTACTS");
printf("\n\t\t4. MODIFY CONTACTS");
printf("\n\t\t5. DELETE CONTACT");
printf("\n\t\t6. EXIT");
printf("\n\n\n\t\t ENTER YOUR CHOISE : ");
fflush(stdin);
ch=getche();
system("cls");
switch(ch){
case '1' :
addContact(fp);
break;
case '2':
readContacts(fp);
break;
case '3':
searchContact(fp);
break;
case '4':
modifyContact(fp);
break;
case '5':
deleteContact(fp);
break;
case '6':
exit(0);
break;
default:
system("cls");
showMessage("ERROR !! PRESS 1-6 ONLY");
pressForMainMenu();
getch();
}
}
void searchContact(FILE *fp){
typedef PhoneBook CONTACT;
CONTACT ph;
int result;
int count=0;
char item[50];
printf("\n\t\tEnter Some text to be Searched : ");
scanf("%s",&item);
while(fread(&ph,sizeof(ph),1,fp)==1){
result=checkForMatch(ph.name,item);
if(result==1){
count++;
printf("\n \t\t Name : %s \n\t\t Address : %s \n\t\t E-Mail :%s\n\t\t Phone No %d \n\n",ph.name,ph.address,ph.email,ph.phoneNo);
}
}
fclose(fp);
if(count==0)
printf("\n\t\tNothing found for Name : %s",item);
else
printf("\n\t\tTotal %d no of Contact(s) found for : %s",count,item);
pressForMainMenu();
}
int checkForMatch(char a[],char b[])
{
int i,k;
char *p,temp[strlen(b)];
if(strlen(a)>=strlen(b)){
for(i=0;i<=(strlen(a)-strlen(b));i++)
{
p=&a[i];
k=0;
while(k!=strlen(b))
{
temp[k]=*(p+k);
k++;
}
temp[k]='\0';
//printf("\nOriginal : %s ~~~~~ Temp : %s\n",b,temp);
if(strcmp(strupr(temp),strupr(b))==0)
{
return 1;
}
}
}
return 0;
}
PhoneBook basicDetails(char level[200]){
PhoneBook ph;
menuDesign(level);
printf("\n\t\tEnter Name : ");
scanf("%s",&ph.name);
printf("\n\t\tEnter Address : ");
scanf("%s",&ph.address);
printf("\n\t\tEnter E-Mail : ");
scanf("%s",&ph.email);
printf("\n\t\tEnter phoneNo : ");
scanf("%d",&ph.phoneNo);
return ph;
}
void addContact(FILE *fp){
char another='Y';
PhoneBook ph;
while((another=='Y')||(another=='y')){
system("cls");
ph=basicDetails("ADD NEW CONTACT");
fseek(fp,0,SEEK_END);
fwrite(&ph,sizeof(ph),1,fp);
printf("\n\n\t\t-------------------------------------------------");
printf("\n\t\tAdded Successfully");
printf("\n\n\t\t-------------------------------------------------");
printf("\n\n\t\tWant to add Another Contact ( Y / Any Key ) : ");
fflush(stdin);
another=getche();
}
if(another!='Y'||(another!='y')){
fclose(fp);
system("cls");
mainMenu();
}
}
void readContacts(FILE *fp){
int count=0;
char keyPress;
rewind(fp);
PhoneBook ph;
menuDesign("ALL CONTACTS");
while(fread(&ph,sizeof(ph),1,fp)==1){
count++;
printf("\n \t\t Name : %s \n\t\t Address : %s \n\t\t E-Mail :%s\n\t\t Phone No : %d \n\n",ph.name,ph.address,ph.email,ph.phoneNo);
}
if(count==0){
showMessage("Nothing To Display ..... ");
}
fclose(fp);
pressForMainMenu();
}
void deleteContact(FILE *fp){
system("cls");
menuDesign("DELETE CONTACT");
PhoneBook ph;
FILE *temp;
int count=0;
char name[50];
temp=fopen("TEMP.DAT","wb+");
printf("\n\t\tEnter Contant Name to Delete : ");
scanf("%s",&name);
rewind(fp);
while(fread(&ph,sizeof(ph),1,fp)==1){
if ( strcmp ( ph.name, name ) != 0 ){
fwrite(&ph,sizeof(ph),1,temp);
}else{
count++;
}
}
fclose(fp);
fclose(temp);
remove ( FILENAME ) ;
rename ( "TEMP.DAT", FILENAME ) ;
fp = fopen ( FILENAME, "rb+" ) ;
printf("\n\n\t\t-------------------------------------------------");
if(count!=0)
printf("\n\t\tDeleted Successfully");
else
printf("\n\t\tNo entry found with Name : %s",name);
printf("\n\n\t\t-------------------------------------------------");
fclose(fp);
pressForMainMenu();
}
void modifyContact(FILE *fp){
system("cls");
menuDesign("MODIFY CONTACT DETAILS");
rewind(fp);
int count=0;
PhoneBook ph;
char name[50];
printf("\n\t\tEnter Name to be Modified : ");
scanf("%s",&name);
while(fread(&ph,sizeof(ph),1,fp)==1){
if(strcmp(ph.name,name)==0){
count++;
ph=basicDetails("MODIFY CONTACT ");
fseek(fp,-sizeof(ph),SEEK_CUR) ;
fwrite(&ph,sizeof(ph),1,fp);
break;
}
}
printf("\n\n\t\t-------------------------------------------------");
if(count!=0)
printf("\n\t\tModified Successfully");
else
printf("\n\t\tNo entry found with Name : %s",name);
printf("\n\n\t\t-------------------------------------------------");
fclose(fp);
pressForMainMenu();
}
void menuDesign(char topic[]){
char *pattren;
//pattren=printPattren('=',200);
printf("\n\t\t=============================");
printf("\n\t\t%s",topic);
printf("\n\t\t=============================\n\n");
}
void showMessage(char message[]){
printf("\n\t\t----------------------------------------------");
printf("\n\t\t%s",message);
printf("\n\t\t----------------------------------------------");
}
void pressForMainMenu(){
char keyPress;
printf("\n\n\t\tPress Any Key For Main Menu ... ");
keyPress=getche();
if(keyPress!=' ')
system("cls");
mainMenu();
}
C Program to Replace String from a String
C Program to Replace String from a String .Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
void ReplaceString(char [],char [],char [],char []);
main()
{
char text[50],a[50],b[50],target[50];
printf("\nProgram to Replace word from a String \n");
printf("\n----------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\nWord To be Replaced : ");
gets(a);
printf("\nReplace By : ");
gets(b);
ReplaceString(text,a,b,target);
printf("\nNew String : %s",target);
getch();
}
void ReplaceString(char source[],char to_be_replaced[],char replaceWith[],char target[])
{
char *p,temp[30],*t;
int i,k,compare,pos=0,j,s;
for(i=0;i<strlen(source);i++)
{
p=&source[i];
k=0;
while(k!=strlen(to_be_replaced))
{
temp[k]=*(p+k);
k++;
}
temp[k]='\0';
compare=strcmp(temp,to_be_replaced);
if(compare==0)
{
s=0;
while(s!=strlen(replaceWith))
{
t=&replaceWith[s];
target[pos]=*t;
pos++;
s++;
}
i=i+strlen(to_be_replaced)-1;
}
else
{
target[pos]=*p;
p++;
pos++;
}
}//end of for loop
target[pos]='\0';
}
Output
C Program to Replace Character from a String
C Program to Replace Character from a String .Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
void ReplaceCharacter(char [],char ,char );
main()
{
char text[50],a,b;
printf("\nProgram to Replace Character from a String \n");
printf("\n----------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\n\nEnter the character you want to replace and by what? : ");
scanf("%c %c",&a,&b);
ReplaceCharecter(text,a,b);
printf("\n\nNew Word is %s" ,text);
getch();
}
void ReplaceCharacter(char source[],char to_be_replace,char replacewith)
{
char *p;
int i;
for(i=0;i<strlen(source);i++)
{
p=&source[i];
if(*p==to_be_replace)
{
source[i]=replacewith;
}
}
}
Output
C Program to Extract String from a String
C Program to Extract String from a String .Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
int subString(char [],char [],int ,int );
main()
{
char text[50],target[50];
int start,end,isError;
printf("\nProgram to Extract String from a String \n");
printf("\n----------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\nStart Position : ");
scanf("%d",&start);
printf("\n\nINFO : Enter -1 if you don't want end position \n\n");
printf("\nEnd Position : ");
scanf("%d",&end);
isError=subString(text,target,start,end);
if(isError==0)
printf("\nERROR !!! End position can not be less than Start position ");
else
printf("\nExtracted String is : %s",target);
getch();
}
int subString(char source[],char target[],int start,int end)
{
char *p;
int i,k=0;
if((end<start)&&(end!=-1))
return 0;
if(end==-1)
end=strlen(source);
for(i=start;i<=end;i++)
{
p=&source[i];
target[k]=*p;
k++;
}
target[k]='\0';
}
Output
C Program to remove repeated characters from a String
C Program to remove repeated characters from a String . Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
void printFirstChar(char [],char []);
int checkifExist(char ,char *);
main()
{
char text[50],target[50];
printf("\nProgram to remove repeated characters from a String \n");
printf("\n------------------------------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printFirstChar(text,target);
printf("\n\New Word after removing repeated Characters is : %s" ,target);
getch();
}
void printFirstChar(char a[],char b[])
{
char *p;
int i,isExits,pos=0;
for(i=0;i<strlen(a);i++)
{
p=&a[i];
isExits=checkifExist(*p,b);
if(isExits==0)
{
b[pos]=*p;
pos++;
}
}
b[pos]='\0';
}
int checkifExist(char k,char *b)
{
while(*b!='\0')
{
if(*b==k)
{
return 1;
break;
}
b++;
}
return 0;
}
Output
C Program to Find Biggest and Smallest word from a String
C Program to Find Biggest and Smallest word from a String . Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
#include <ctype.h>
void copyData(char *,char *);
void findSamallestAndBigestWord(char *,char [],char []);
main()
{
char text[50],big[50],small[50];
int position,start;
printf("\nProgram to Find Biggest and Smallest word from a String \n");
printf("\n------------------------------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
findSamallestAndBigestWord(text,big,small);
printf("\n\nBiggest Word is : %s" ,big);
printf("\n\nSmallest Word id : %s" ,small);
getch();
}
void findSamallestAndBigestWord(char a[],char MAX[],char MIN[])
{
char *p,tempMAX[30],tempMIN[30];
int i,max=0,min,pos=0;
if(isspace(a[strlen(a)-1]))
{}
else{
a[strlen(a)]=' ';
a[strlen(a)]='\0';
}
min=strlen(a);
for(i=0;i<strlen(a);i++)
{
p=&a[i];
if(*p!=' ')
{
tempMAX[pos]=*p;
tempMIN[pos]=*p;
pos++;
}
else{
tempMAX[pos]='\0';
tempMIN[pos]='\0';
if(strlen(tempMAX)>max)
{
copyData(tempMAX,MAX);
max=strlen(tempMAX);
}
if(strlen(tempMIN)<min)
{
copyData(tempMIN,MIN);
min=strlen(tempMIN);
}
pos=0;
}
}
}
void copyData(char *source,char *target)
{
while(*source!='\0')
{
*target=*source;
*source++;
*target++;
}
*target='\0';
}
Output
C Program to Abbreviate a String
C Program to Abbreviate a String . Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
void string_abbreviation(char [],char []);
main()
{
char text[30],target[30];
printf("\nProgram to Abbreviate a String \n");
printf("\n--------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
string_abbreviation(text,target);
printf("\nAbbreviation of string '%s' is : %s",text,target);
getch();
}
void string_abbreviation(char a[],char b[])
{
char *p;
int length,i,k=0;
length=strlen(a);
b[k]=a[0];
k++;
for(i=0;i<length;i++)
{
p=&a[i];
if(*p==' ')
{
b[k]=*(p+1);
k++;
}
}
b[k]='\0';
strupr(b);
}
Output
C Program to Find first occurrence of char with starting position
C Program to Find first occurrence of char with starting position.Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
int First_Occurrence_Char(char [],char ,int);
main()
{
char text[30],searchChar;
int position,start;
printf("\nProgram to Find first occurrence of char with starting position \n");
printf("\n------------------------------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\nSearched Char : ");
scanf("%c",&searchChar);
printf("\nStart From : ");
scanf("%d",&start);
position=First_Occurrence_Char(text,searchChar,start);
printf("\nCharecter '%c' in String '%s' starting at %d found at position %d ",searchChar,text,start,position);
getch();
}
int First_Occurrence_Char(char a[],char b,int start)
{
int i;
char *p;
for(i=start;i<strlen(a);i++)
{
p=&a[i];
if(*p==b)
{
break;
}
}
if(i==strlen(a))
{
return -1;
}
else
{
return i;
}
}
Output
C Program to Find First occurrence of String from a String
C Program to Find First occurrence of String from a String.Compiled in Dev C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
int compare_string(char * , char *);
int First_Occurrence_String(char [],char []);
int string_length(char *);
main()
{
char text[30],sreachString[30];
int position;
printf("\nProgram to Find First occurrence of String from a String \n");
printf("\n-----------------------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\nSearched String : ");
gets(sreachString);
position=First_Occurrence_String(text,sreachString);
printf("\nString '%s' starts in String '%s' from Position %d",sreachString,text,position);
getch();
}
int First_Occurrence_String(char a[],char b[])
{
int i,k;
char *p,temp[string_length(b)];
for(i=0;i<=(string_length(a)-string_length(b));i++)
{
p=&a[i];
k=0;
while(k!=string_length(b))
{
temp[k]=*(p+k);
k++;
}
temp[k]='\0';
if(compare_string(temp,b)==1)
{
break;
}
}
if(i==(string_length(a)-string_length(b))+1)
return -1;
else
return i;
}
int compare_string(char *first , char *second)
{
while(*first!='\0')
{
if(*first==*second)
{
first++;
second++;
}
else
{
return 0;
}
}
return 1;
}
int string_length(char *a)
{
int count=0;
while(*a!='\0')
{
count++;
a++;
}
return count;
}
Output
C Program to Find Last occurrence of char from a String
C Program to Find Last occurrence of char from a String.Compiled in DEV C++
#include<stdio.h>
#include<string.h>
#include<conio.h>
int Last_Occurrence_Char(char [],char );
main()
{
char text[30],searchChar;
int position;
printf("\nProgram to Find Last occurrence of char from a String \n");
printf("\n-----------------------------------------------------------\n\n\n");
printf("Enter Text : ");
gets(text);
printf("\nSearched Char : ");
scanf("%c",&searchChar);
position=Last_Occurrence_Char(text,searchChar);
printf("\nCharecter '%c' Found in String '%s' at Position %d",searchChar,text,position);
getch();
}
int Last_Occurrence_Char(char a[],char b)
{
int i;
char *p;
for(i=strlen(a);i>=0;i--)
{
p=&a[i];
if(*p==b)
{
break;
}
}
if(i==strlen(a))
{
return -1;
}
else
{
return i;
}
}
Output
WBUT Assignment Help 