Write a program to maintain a telephone directory use add() and Show() methods to add new entries and display the telephone numbers of a person when the name of the person is given(No need to use data files)., C++ program calculator

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Apr-18 bca sem-1,6 papers and Nov-17 sem-1,5 papers uploaded.



Subject Name	C++
Program Name	Telephone Directory
Program Description	Write a program to maintain a telephone directory use add() and Show() methods to add new entries and display the telephone numbers of a person when the name of the person is given(No need to use data files).



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Program Code
/* Write a program to maintain a telephone directory use add() and Show() methods to add new entries and display the telephone numbers of a person when the name of the person is given(No need to use data files). / #include<iostream.h> //#include<fstream.h> #include<iomanip.h> #include<conio.h> #include<string.h> class tel_dir { char name[20]; int number; public: void add() { cout<<"\nEnter Name, Telephone Number:"; cin>>name>>number; } void show() { cout<<setiosflags(ios::left) <<setw(20)<<name <<setiosflags(ios::right) <<setw(10)<<number <<endl; } int isExits(char nm) { if(strcmp(nm,name)==0) return 1; else return 0; } }; int main() { int i; tel_dir entry[3]; //fstream file; //file.open("telephone.DAT",ios::in \| ios::out); cout<<"\nEnter details for 3 enteries\n"; for(i=0;i<3;i++) { entry[i].add(); //file.write((char )&entry[i] sizeof(entry[i])); } //file.seekg(0); cout<<"\n OUTPUT \n\n"; for(i=0;i<3;i++) { //file.read((char )&entry[i] sizeof(entry[i])); entry[i].show(); } char nm[20]; cout<<"\nEnter name to search : "; cin>>nm; for(i=0;i<3;i++) { if (entry[i].isExits(nm)) entry[i].show(); } //file.close(); getch(); return 0; }


Input Values(You must enter all user input value here, that you want to use during runtime)



To Run C++ Program 1. #include<iostream.h> change to #include<iostream> 2. #include<math.h> change to #include<cmath>; 3. #include<string.h> change to #include<cstring>; 4. Add line using namespace std; These all(1 to 4) will be done automatically..., So don't worry.