Marks_Management_System.sol

pragma solidity >= 0.7.0<0.8.0;

//Build the Contract
contract MarksManagmtSys{
    
    //Create a structure for student details
    struct Student{
        int ID;
        string fName;
        string lName;
        int marks;
    }
    
    address owner;
    int public stdCount=0;
    mapping(int=>Student) public stdRecords;
 
    modifier onlyOwner{
        require(owner == msg.sender);
        _;
    }
    constructor(){
        owner=msg.sender;
    }
    
    //Create a function to add the new records
    function addNewRecords(int _ID,string memory _fName,string memory _lName,int _marks) public onlyOwner{
        
        //increase the count by 1
        stdCount=stdCount+1;
        
        //fetch the student details with the help of stdCount
        stdRecords[stdCount]= Student(_ID, _fName, _lName, _marks);

    }
    
    //Create a function to add bonus marks 
    function bonusMarks(int _bonus) public onlyOwner{
         stdRecords[stdCount].marks= stdRecords[stdCount].marks + _bonus;
  }
}