#include<iostream>
using namespace std;
string arr1[20],arr2[20],arr3[20],arr4[20],arr5[20];
int total=0;
void enter()
{
int ch=0;
cout<<"How many students do u want to enter??"<<endl;
cin>>ch;
if(total==0)
{
total=ch+total;
for(int i=0;i<ch;i++)
{
cout<<"\nEnter the Data of student "<<i+1<<endl<<endl;
cout<<"Enter name ";
cin>>arr1[i];
cout<<"Enter Roll no ";
cin>>arr2[i];
cout<<"Enter course ";
cin>>arr3[i];
cout<<"Enter class ";
cin>>arr4[i];
cout<<"Enter contact ";
cin>>arr5[i];
}
}
else
{
for(int i=total;i<ch+total;i++)
{
cout<<"\nEnter the Data of student "<<i+1<<endl<<endl;
cout<<"Enter name ";
cin>>arr1[i];
cout<<"Enter Roll no ";
cin>>arr2[i];
cout<<"Enter course ";
cin>>arr3[i];
cout<<"Enter class ";
cin>>arr4[i];
cout<<"Enter contact ";
cin>>arr5[i];
}
total=ch+total;
}
}
void show()
{
if(total==0)
{
cout<<"No data is entered"<<endl;
}
else{
for(int i=0;i<total;i++)
{
cout<<"\nData of Student "<<i+1<<endl<<endl;
cout<<"Name "<<arr1[i]<<endl;
cout<<"Roll no "<<arr2[i]<<endl;
cout<<"Course "<<arr3[i]<<endl;
cout<<"Class "<<arr4[i]<<endl;
cout<<"Contact "<<arr5[i]<<endl;
}
}
}
void search()
{
if(total==0)
{
cout<<"No data is entered"<<endl;
}
else{
string rollno;
cout<<"Enter the roll no of student"<<endl;
cin>>rollno;
for(int i=0;i<total;i++)
{
if(rollno==arr2[i])
{
cout<<"Name "<<arr1[i]<<endl;
cout<<"Roll no "<<arr2[i]<<endl;
cout<<"Course "<<arr3[i]<<endl;
cout<<"Class "<<arr4[i]<<endl;
cout<<"Contact "<<arr5[i]<<endl;
}
}
}
}
void update()
{
if(total==0)
{
cout<<"No data is entered"<<endl;
}
else{
string rollno;
cout<<"Enter the roll no of student which you want to update"<<endl;
cin>>rollno;
for(int i=0;i<total;i++)
{
if(rollno==arr2[i])
{
cout<<"\nPrevious data"<<endl<<endl;
cout<<"Data of Student "<<i+1<<endl;
cout<<"Name "<<arr1[i]<<endl;
cout<<"Roll no "<<arr2[i]<<endl;
cout<<"Course "<<arr3[i]<<endl;
cout<<"Class "<<arr4[i]<<endl;
cout<<"Contact "<<arr5[i]<<endl;
cout<<"\nEnter new data"<<endl<<endl;
cout<<"Enter name ";
cin>>arr1[i];
cout<<"Enter Roll no ";
cin>>arr2[i];
cout<<"Enter course ";
cin>>arr3[i];
cout<<"Enter class ";
cin>>arr4[i];
cout<<"Enter contact ";
cin>>arr5[i];
}
}
}
}
void deleterecord()
{
if(total==0)
{
cout<<"No data is entered"<<endl;
}
else{
int a;
cout<<"Press 1 to delete all record"<<endl;
cout<<"Press 2 to delete specific record"<<endl;
cin>>a;
if(a==1)
{
total=0;
cout<<"All record is deleted..!!"<<endl;
}
else if(a==2)
{
string rollno;
cout<<"Enter the roll no of student which you wanted to delete"<<endl;
cin>>rollno;
for(int i=0;i<total;i++)
{
if(rollno==arr2[i])
{
for(int j=i;j<total;j++)
{
arr1[j]=arr1[j+1];
arr2[j]=arr2[j+1];
arr3[j]=arr3[j+1];
arr4[j]=arr4[j+1];
arr5[j]=arr5[j+1];
}
total--;
cout<<"Your required record is deleted"<<endl;
}
}
}
else
{
cout<<"Invalid input";
}
}
}
main()
{
int value;
while(true)
{
cout<<"\nPress 1 to enter data"<<endl;
cout<<"Press 2 to show data"<<endl;
cout<<"Press 3 to search data"<<endl;
cout<<"Press 4 to update data"<<endl;
cout<<"Press 5 to delete data"<<endl;
cout<<"Press 6 to exit"<<endl;
cin>>value;
switch(value)
{
case 1:
enter();
break;
case 2:
show();
break;
case 3:
search();
break;
case 4:
update();
break;
case 5:
deleterecord();
break;
case 6:
exit(0);
break;
default:
cout<<"Invalid input"<<endl;
break;
}
}
}
