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Java Program to grade calculation system

Get a mark of a student and find its grade. (Note: 96 to 100 - O Grade 91 to 95 - A Grade 81 to 90-B Grade 71 to 80 - C Grade 61 to 70 - D Grade 50 to 60 - E Grade Below 50 - F Grade)

Sample Input 1:

75

Sample Output 2:

C Grade

Program or Solution

					    
							
import java.util.*;
class Grade
{
  public static void main(String args[])
  {
        int mark;
	Scanner sc=new Scanner(System.in);
	System.out.println("Enter The Mark:");
	mark=sc.nextInt();
	if(mark>95&&mark<=100)
	{
		System.out.println("O Grade");
	}
	else if(mark>90&&mark<=95)
	{
		System.out.println("A grade");
	}
	else if(mark>80&&mark<91)
	{
		System.out.println("B Grade");
	}
	else if(mark>70&&mark<81)
	{
		System.out.println("C Grade");
	}
	else if(mark>60&&mark<71)
	{
		System.out.println("D Grade");
	}
	else if(mark>49&&mark<61)
	{
		System.out.println("E Grade");
	}
	else if(mark>=0&&mark<50)
	{
		System.out.println("F Grade");
	}
	else
	{
		System.out.println("Invalid Mark");
	}
  }
}
					    
					

Program Explanation

chained conditional check is used here to check the mark range.

any one of the grade will be displayed using else if Statement.