OOP Final #1

package bd_bank;

import java.util.Scanner;

public class BD_Bank {

    public static void main(String[] args) {

        System.out.println("Welcome to Bangladesh Bank");

        System.out.println("Card Typr:\n1. MasterCard or 2. VisaCard");
        System.out.print("Choose one: ");

        int a;
        Scanner in = new Scanner(System.in);
        a = in.nextInt();

        if (a == 1) {
            System.out.print("Input Transaction Ammount: ");
            double amnt = in.nextDouble();
            System.out.print("Input Total Yearly Transaction: ");
            int b = in.nextInt();

            if (b == 0) {
                System.out.println("The Yearly Change: 5000 TK");
            } else if (b >= 1 || b <= 5) {
                System.out.println("The Yearly Change: " + amnt * .06 + "TK");

            } else if (b >= 6 || b <= 11) {
                System.out.println("The Yearly Change: " + amnt * .04 + "TK");

            } else if (b >= 12) {
                System.out.println("The Yearly Change: 0 Tk");

            }

        }
        if (a == 2) {
            System.out.print("Input Transaction Ammount: ");
            double amnt = in.nextDouble();
            System.out.print("Input Total Yearly Transaction: ");
            int b = in.nextInt();

            if (b == 0) {
                System.out.println("The Yearly Change: 3000 TK");
            } else if (b >= 1 || b <= 9) {
                System.out.println("The Yearly Change: " + amnt * .06 + "TK");

            } else if (b >= 10 || b <= 17) {
                System.out.println("The Yearly Change: " + amnt * .04 + "TK");

            } else if (b >= 18) {
                System.out.println("The Yearly Change: 0 TK");

            }

        }
    }

}