Write a function in C++ to search for a laptop from a binary file “L

1.	Write a function in C++ to search for a laptop from a binary file “LAPTOP.DAT” containing the objects of classLAPTOP (as defined below). The user should enter the Model No and the function should search and display thedetails of the laptop.class LAPTOP { long ModelNo; float RAM,HDD; char Details[120];public: void StockEnter() { cin>>Modelno>>RAM>>HDD; gets(Details); } void StockDisplay() { cout<<ModelNo<<RAM<<HDD<<Details<<endl; } long ReturnModelNo() { return ModelNo; }};
Answer» void Search( ) { LAPTOP L; long modelnum; cin>>modelnum; ifstream fin; fin.open("LAPTOP.DAT",ios::binary\|ios::in); while(fin.read((char*)&L,sizeof(L))) { if(L.ReturnModelNo( )==modelnum) L.StockDisplay( ); } fin.close(); //Ignore }

Write a function in C++ to search for a laptop from a binary file “LAPTOP.DAT” containing the objects of classLAPTOP (as defined below). The user should enter the Model No and the function should search and display thedetails of the laptop.class LAPTOP { long ModelNo; float RAM,HDD; char Details[120];public: void StockEnter() { cin>>Modelno>>RAM>>HDD; gets(Details); } void StockDisplay() { cout<<ModelNo<<RAM<<HDD<<Details<<endl; } long ReturnModelNo() { return ModelNo; }};

Answer»

void Search( ) {

LAPTOP L;

long modelnum;

cin>>modelnum;

ifstream fin;

fin.open("LAPTOP.DAT",ios::binary|ios::in); while(fin.read((char*)&L,sizeof(L)))

{

if(L.ReturnModelNo( )==modelnum) L.StockDisplay( );

}

fin.close(); //Ignore

}

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