Session 13

Source Code

import java.util.*;

public class Session13 {
    public static void main(String[] args) {
        System.out.println("Session 13");
        Scanner in = new Scanner(System.in);
        // Menu
        System.out.println("Menu");
        System.out.println("E1 - Example 1");

        // setup Scanner
        System.out.print("Choice: ");
        String choice = in.nextLine();

        // switch statement
        switch(choice) {
            case "E1":
                example1();
                break;
            case "E2":
                example2();
                break;
            case "E3":
                example3();
                break;
            case "E4":
                example4();
                break;
            case "E5":
                example5();
                break;
            case "E6":
                example6();
                break;
            default:
                System.out.println("Invalid choice");
                break;
        }
    }
    // example1 method definition
    public static void example1() {
    
    }
    // example2 method definition
    public static void example2() {
    
    }    
    // example3 method definition
    public static void example3() {
    
    }    
    // example4 method definition
    public static void example4() {
    
    }
    // example5 method definition
    public static void example5() {
    
    }
    // example5 method definition
    public static void example6() {
    
    }
}

S13Problem1.java

import java.util.*;

public class S13Problem1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 1");
        
        boolean userLoggedIn = in.nextBoolean();
        boolean hasPermission = in.nextBoolean();

        // Original
        if (!userLoggedIn || !hasPermission) {
            System.out.println("Access denied.");
        } else {
            System.out.println("Access granted.");
        }
        // Simplify using De Morgan's Laws
        
        
    }
}

S13Problem2.java

import java.util.*;

public class S13Problem2 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 2");
        
        boolean isMember = in.nextBoolean();
        boolean hasActiveSubscription = in.nextBoolean();

        // Original
        if (!isMember || !hasActiveSubscription) {
            System.out.println("Access denied. Please check your membership or subscription.");
        } else {
            System.out.println("Access granted. Welcome!");
        }
        // Simplify using De Morgan's Laws

    }
}

S13Problem3.java

import java.util.*;

public class S13Problem3 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 3");
        
        boolean isLoggedIn = in.nextBoolean();
        boolean isPaidUser = in.nextBoolean();

        // Original
        if (!isLoggedIn || !isPaidUser) {
            System.out.println("Please log in or purchase a subscription.");
        } else {
            System.out.println("Welcome to the premium service!");
        }
        // Simplify using De Morgan's Laws

    }
}

S13Problem4.java

import java.util.*;

public class S13Problem4 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 4");
        
        boolean isHungry = in.nextBoolean();
        boolean isThirsty = in.nextBoolean();

        // Original
        if !(isHungry || isThirsty) {
            System.out.println("Satisfied");
        } else {
            System.out.println("Not satisfied");
        }
        // Simplify using De Morgan's Laws 
        

    }
}

S13Problem5.java

import java.util.*;

public class S13Problem5 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 5");
        
        boolean isWeekend = in.nextBoolean();
        boolean isHoliday = in.nextBoolean();

        // Original
        if !(isWeekend || isHoliday) {
            System.out.println("Have Work");
        } else {
            System.out.println("Don't have work");
        }
        // Simplify using De Morgan's Laws 

    }
}

S13Problem6.java

import java.util.*;

public class S13Problem6 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 6");

        boolean isOpenLate = in.nextBoolean();
        boolean isCrowded = in.nextBoolean();

        // Original
        if !(isOpenLate || isCrowded) {
            System.out.println("Perfect time");
        } else {
            System.out.println("Not the perfect time");
        }
        // Simplify using De Morgan's Laws 

    }
}

S13Problem7.java

import java.util.*;

public class S13Problem7 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 7");

        int temperature = 30;

        if (!(temperature > 40 && temperature <= 25)) {
            System.out.println("Temperature is normal.");
        } else {
            System.out.println("Alert: Extreme temperature!");
        }

    }
}

S13Problem8.java

import java.util.*;

public class S13Problem8 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 8");


    }
}

S13Problem10.java

import java.util.*;

public class S13Problem10 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 10");


    }
}

S13Problem11.java

import java.util.*;

public class S13Problem11 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 11");


    }
}

S13Problem12.java

import java.util.*;

public class S13Problem12 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Problem 12");


    }
}