Weather Report using array of objects (C++)

/*    Create a class named weather report that holds a daily weather report with data  members day_of_month,hightemp,lowtemp,amount_rain and amount_snow. The  constructor initializes the fields with default values: 99 for day_of_month, 999 for  hightemp,-999 for low emp and 0 for amount_rain and amount_snow. Include a  function that prompts the user and sets values for each field so that you can override  the default values. Write a C++/Java/Python program that creates a monthly report.  d) Menu driven program with options to Enter data and Display report  e) Report Format    */    #include<iostream>  #include<iomanip>  using namespace std;    class weather_report  {  public:      int day;      float hightemp;      float lowtemp;      float amountrain;      float amountsnow;            void getdata();      void display();      weather_report()      {          day=99;          hightemp=999;          lowtemp=-999;          amountrain=0;          amountsnow=0;      }  };    void weather_report :: getdata()  {      cout<<"\nEnter all fields. ";      cout<<"\n\tEnter day : ";      cin>>day;      cout<<"\n\tEnter High temp : ";      cin>>hightemp;      cout<<"\n\tEnter low temp : ";      cin>>lowtemp;      cout<<"\n\tEnter amount Rain : ";      cin>>amountrain;      cout<<"\n\tEnter amount snow : ";      cin>>amountsnow;  }    void weather_report :: display()  {        cout<<setw(10)<<day<<setw(10)<<hightemp<<setw(10)<<lowtemp<<setw(10)<<amountrain<<setw(10)<<amountsnow<<"\n";  }  int main()  {      float p;      int ch;      char ch1;      weather_report w[31];      do      {          cout<<"\n\t1. Prompt data\n\t2. Display.";          cout<<"\n\n\tEnter your choice : ";          cin>>ch;          cout<<"\nFor how many days you want to enter field   :  ";          cin>>p;                    switch(ch)          {              case 1:                  for(int i=0;i<p;i++)                  {                      w[i].getdata();                  }                  break;              case 2:                  float avghightemp,avglowtemp,avgrain,avgsnow;                  int a=0,b=0,c=0,d=0;                  cout<<setw(10)<<"DAY "<<setw(10)<<"HIGH TEMP"<<setw(10)<<"LOW TEMP"<<setw(10)<<"AMOUNT RAIN"<<setw(10)<<"AMOUNT SNOW"<<"\n";                  for(int i=0;i<p;i++)                  {                      w[i].display();                      a=a+w[i].hightemp;                      b=b+w[i].lowtemp;                      c=c+w[i].amountrain;                      d=d+w[i].amountsnow;                  }                  avghightemp=(a/p),avglowtemp=(b/p),avgrain=c/p,avgsnow=(d/p);                  cout<<setw(10)<<"Avg"<<setw(10)<<avghightemp<<setw(10)<<avglowtemp<<setw(10)<<avgrain<<setw(10)<<avgsnow;                  break;          }cout<<"\ndo u want to continue ?";                    cin>>ch1;            }while(ch1==’Y’ || ch1==’y’);      return 0;  }

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