When i try to use method it give error

i have a switch statement in which i try to check for string values, i want that after checking for name it should ask for marks. But when i try to make an if else statement in a method it gives error.

here is the code which runs fine :

  import java.util.Scanner;
public class java {
    public static void main(String args[])
    {
        Scanner obj=new Scanner(System.in);
        int num;
        final int pass=33;
        String Student;
        System.out.println("Please enter your name");
        Student=obj.nextLine();
        switch(Student)
        {
        case "Ram":
            System.out.println("Students name is "+ Student);
            break;
        case "Shyaam":
            System.out.println("Students name is "+ Student);
            break;
            default:
                System.out.println("This name is not recognised");

        }


            System.out.println("Enter your marks");
            num=obj.nextInt();
            if(num<pass)
            {   
                System.out.println(Student+" You have failed the subject");
            }   

            else
            {
                System.out.println(Student+" You have passed the subject");
            }
    }


}
}

but in this even if name does not get verified it still ask for marks.

what should i do. Please help.