Write a program to accept a mark obtained by a student in computer science and print the grades accordingly:

Write a program to accept a mark obtained by a student in computer science and print the grades accordingly:

import java.util.*;
class Marks
{
    public static void main(String arr[])
    {
        int m;
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the marks:");
        m=sc.nextInt();
        if (m>=90)
        System.out.println("Grade=A");
        else if (m>=70)
        System.out.println("Grade=B");
        else if (m>=50)
        System.out.println("Grade=C");
        else
        System.out.println("Grade=D");
    }
}