import java.util.Random;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Random random = new Random();
        Scanner scanner = new Scanner(System.in);

        int guess;
        int attempts = 0;
        int min = 1;
        int max = 100;
        int randomNumber = random.nextInt(min, max + 1);

        System.out.println("Number Guessing Game");
        System.out.printf("Guess a number between %d-%d\n", min, max);

        do {
            System.out.print("Enter a Guess: ");
            guess = scanner.nextInt();
            attempts++;

            if (guess < randomNumber) {
                System.out.println("TOO LOW! TRY again");

            } else if (guess > randomNumber) {
                System.out.println("TOO HIGH! TRY again");
            } else {
                System.out.println("CORRECT! The number was " + randomNumber);
                System.out.println("# of attempts: " + attempts);
            }

        } while (guess != randomNumber);


        scanner.close();
    }
}

import java.util.Scanner;
public class First {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter number of students: ");
        int studentCount = scanner.nextInt();


        String[] names = new String[studentCount];
        int[] grades = new int[studentCount];


        for (int i = 0; i < studentCount; i++) {
            System.out.println("\nStudent " + (i + 1));

            System.out.print("Name: ");
            names[i] = scanner.next();

            System.out.print("Grade (0-100): ");
            grades[i] = scanner.nextInt();
        }

        int sum = 0;
        int max = grades[0];
        int min = grades[0];

        for (int i = 0; i < studentCount; i++) {
            sum += grades[i];

            if (grades[i] > max) {
                max = grades[i];
            }

            if (grades[i] < min) {
                min = grades[i];
            }
        }

        double average = (double) sum / studentCount;


        System.out.println("\n===== STUDENT RESULTS =====");

        for (int i = 0; i < studentCount; i++) {
            System.out.println(names[i] + " → " + grades[i]);
        }

        System.out.println("\nAverage grade: " + average);
        System.out.println("Highest grade: " + max);
        System.out.println("Lowest grade: " + min);
        scanner.close();

    }
}

import java.util.Scanner;

public class First {
    public static void main(String[] args) throws InterruptedException {


        Scanner scanner = new Scanner(System.in);

        System.out.print("How many seconds to countdown from?: ");
        int start = scanner.nextInt();


        for (int i = start; i > 0; i--) {
            System.out.println(i);
            Thread.sleep(1000);
        }

        System.out.println("HAPPY NEW YEAR!");

        scanner.close();
    }
}

public class First {
    public static void main(String[] args) {

      // break = break out of a loop (STOP)
      //   continue = skip current iteration of a loop (SKIP)

        for (int i = 0; i < 10; i++) {
            if (i == 5){
                continue;
            }
            System.out.print(i + " ");
        }


    }
}

import java.util.Scanner;

public class First {
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int rows;
        int columns;
        char symbol;

        System.out.print("Enter the # of rows: ");
        rows = scanner.nextInt();

        System.out.print("Enter the # of columns: ");
        columns = scanner.nextInt();

        System.out.print("Enter the symbol to use: ");
        symbol = scanner.next().charAt(0);


        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < columns; j++) {
                System.out.print(symbol);
            }
            System.out.println();
        }

        scanner.close();
    }
}

// nested loop = A loop inside another loop
        //              Used often with matrices or DS&A 
        //                 Data Structure and Algorithms

public class First {
    public static void main(String[] args) {

       // A method = is a block of code which only runs when it is called.

      //  You can pass data, known as (parameters), into a method.

      //  Methods = are used to perform certain actions, and they are also known as (functions).

        String name = "Bro";
        int age = 25;

       happyBirthday(name, age);

    }

    static void happyBirthday(String name, int age) {
        System.out.println("Happy birthday to you!");
        System.out.printf("Happy birthday dear %s!\n", name);
        System.out.printf("You are %d years old!\n", age);
        System.out.println("Happy birthday to you!\n");
    }
}

public class First {
    public static void main(String[] args) {

        int age = 12;
        if (ageCheck((age))) {
            System.out.println("You may sign up!");
        } else {
            System.out.println("You must be 18+ to sign up!");
        }
    }

    static void happyBirthday(String name, int age) {
        System.out.println("Happy birthday to you!");
        System.out.printf("Happy birthday dear %s!\n", name);
        System.out.printf("You are %d years old!\n", age);
        System.out.println("Happy birthday to you!\n");
    }

    static double square(double number) {
        return number * number;
    }

    static double cube(double number) {
        return number * number * number;
    }

    static String getFullName(String first, String last) {
        return first + " " + last;

    }

    static boolean ageCheck(int age) {
        if (age >= 18) {
            return true;
        } else {
            return false;
        }
    }

}