Lect4_Sol_Problem.java

/*
	Make a menu driven program. The user can enter 2 numbers, either 1 or 0. 
	If the user enters 1 then keep taking input from the user for a student’s marks(out of 100). 
	If they enter 0 then stop.
	If he/ she scores :
	Marks >=90 -> print “This is Good”
	89 >= Marks >= 60 -> print “This is also Good”
	59 >= Marks >= 0 -> print “This is Good as well”
		Because marks don’t matter but our effort does.
	(Hint : use do-while loop but think & understand why)
*/

import java.util.Scanner;
public class Lect4_Sol_Problem{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// System.out.println("Enter a Number if you inside then press 1 otherwise 0:");
		// int inp = sc.nextInt();

		// do{
		// 	switch(inp){
		// 		case 1: 
		// 			System.out.println("Enter your Marks Out of 100:"); 
		// 			int marks = sc.nextInt();
		// 			if(marks >= 90){
		// 				System.out.println("This is Good!");
		// 				break;
		// 			}
		// 			if(89 >= marks && marks >= 60){
		// 				System.out.println("This is Also Good!");
		// 				break;
		// 			}
		// 			if(59 >= marks && marks >= 23){
		// 				System.out.println("This is Good as Well!");
		// 				break;
		// 			}
		// 			if(22 >= marks && marks >= 0){
		// 				System.out.println("This is Exellence!");
		// 				break;
		// 			}
		// 			break;	
		// 		case 0: System.out.println("If you enter your input then press 1:");
		// 			break;
		// 		default: if(inp != 1 || inp != 0){
		// 			System.out.println("Entered Value is Invalid! Try Again!");
		// 			break;
		// 		}
		// 	}
		// }while(false);


		// It goes an Infinite State:
		// for(;  ;){
		// 	System.out.println("Hello World");
		// }

		// Check Whether a Number is Prime or Not:
		int no = sc.nextInt();
		if(no/2 == 1 && no/no == 1){
			System.out.println("It is a Prime Number");
		}
		else{
			System.out.println("It is a Not Prime Number");
		}

	}
}