Student Grade Calculate using Java

this tutorial will teach you write the java program to calculate and display student grade system.i have written the simple example .
Input the Student name,marks for 3 subjects,calculate the avg,grade. In order to calculate the grade using following conditions.

if the average is greater than 50 awarded as “Pass” Other wise “Fail”

public class JavaEx {

    public static void main(String args[])
    {
        String name ="John";

        int maths = 100;
        int science = 78;
        int english = 68;

        int tot = maths + science + english;
        System.out.println(tot);

        int avg = tot/3;
        System.out.println(avg);
        

        if(avg > 50)
        {
            System.out.println("Pass");
        }
        else
        {
            System.out.println("Fail");
        }
    }

}