Java Student marks Assesment

In the given code, the user is allowed to enter name and id of the student. The user is then allowed to enter the marks of three subjects. Accordingly, average of marks is calculated and based on the average, grade is given to the student.

import java.util.*;

class MarksAssesment
{
    public static void main(String[] args) 
    {
        Scanner input=new Scanner(System.in);
        System.out.print("Enter ID: ");
        long id=input.nextLong();
        System.out.print("Enter Name: ");
        String name=input.next();
        System.out.println("Enter Marks of three subjects: ");
        int marks[]=new int[3];
        int sum=0;
        for(int i=0;i<marks.length;i++){
            marks[i]=input.nextInt();
            sum+=marks[i];
        }
        if(marks[0]>40&&marks[1]>40&&marks[2]>40){
            System.out.println("Assesment is possible");
        }
        int average=sum/(marks.length);
        String grade="";
        System.out.println("Average of marks: "+average);
        if(average<40){
            grade="Fail!";
        }
        else if((average>=40) && (average<60)){
            grade="C!";
        }
        else if((average>=60) && (average<80)){
            grade="B!";
        }
        else if((average>=80) && (average<=100)){
            grade="A!";
        }
        System.out.println("Student Name: "+name);
        System.out.println("Student ID: "+id);
        System.out.println("Student Marks");
        for(int i=0;i<marks.length;i++){
        System.out.println(marks[i]);
        }
        System.out.println("Average Marks: "+average);
        System.out.println("Grade: "+grade);
    }
}