Update README.md

Basics/src/main/java/com/example/Basics.java

@@ -100,6 +100,56 @@ public class Basics {
                 System.out.println("Something else!");
                 break;
         }
+
+        /*
+            Given the age of a person as an input, output their age group.
+            Here are the age groups you need to handle:
+            Child: 0 to 11
+            Teen: 12 to 17
+            Adult: 18 to 64
+            Sample Input
+            42
+            Sample Output
+            Adult
+         */
+        int ages = sc.nextInt();
+        if (ages > 0  && ages <= 11) {
+            System.out.println("Child");
+        }else if(ages <= 17){
+            System.out.println("Teen");
+        } else if (ages <= 64) {
+            System.out.println("Adult");
+        }
+
+        /*
+            Your math teacher asked you to calculate the sum of the numbers 1 to N, where N is a given number.
+            Task: Take an integer N from input and output the sum of the numbers 1 to N, inclusive.
+            Sample Input:
+            10
+            Sample Output:
+            55
+         */
+
+        int number = sc.nextInt();
+        int sum = 0;
+        while (number > 0) {
+            sum += number;
+            number--;
+        }
+        System.out.println(sum);
+
+        /*
+            The factorial of a number N is equal to 1 * 2 * 3 * ... * N
+            For example, the factorial of 5 is 1* 2 * 3 * 4 * 5  = 120.
+            Create a program that takes a number from input and output the factorial of that number.
+         */
+        long fact = 1;
+        int num = sc.nextInt();
+        for (int i = 2; i <= num; i++) {
+            fact *= i;
+        }
+        System.out.println(fact);
+
         sc.close();
         sci.close();
     }

Basics_II/pom.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.example</groupId>
+    <artifactId>second</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+    </properties>
+
+</project>

Basics_II/src/main/java/com/example/BasicII.java

@@ -0,0 +1,140 @@
+package com.example;
+import java.util.Scanner;
+
+public class BasicII {
+
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+
+        int [] ages;
+        ages = new int[10];
+        int [] numbers = {15, 36, 18, 24, 47, 59, 26};
+        ages[2] = 15;
+        ages[0] = 18;
+        System.out.println(numbers[3]);
+
+        /*
+            You are making a program for a vending machine that provides drinks.
+            The menu of the drinks is stored in an array called menu:
+            String[] menu = {"Tea", "Espresso", "Americano", "Water", "Hot Chocolate"}; 
+            JAVA
+            Take the choice of the customer as an integer from input and output the corresponding menu item.
+            Also, check for errors: in case the input is out of the range of the array, output "Invalid".
+         */
+        String[] menu = {"Tea", "Espresso", "Americano", "Water", "Hot Chocolate"}; 
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Your chouse from the vending machine [0-4]: ");
+        int choice = sc.nextInt();
+        if (choice > 4 || choice < 0) {
+            System.out.println("Invalid");
+        }else{
+            System.out.println(menu[choice]);
+        }
+
+        /*
+        The given code declares an array that holds the monthly revenues for a company for a year.
+        You need to calculate the average monthly revenue for the year.
+        For that, calculate the sum of the revenue for all the months and divide it by the number of items in the array.
+         */
+        double[] revenue = {88750, 125430, 99700, 14500, 158000, 65000, 99000, 189000, 210000, 42000, 165800, 258900};
+        double sum = 0;
+        for (double d : revenue) {
+            sum += d;
+        }
+        System.out.println(sum/revenue.length);
+
+        //Multidimensional arrays    (row, col)
+        int[ ][ ] sample = { {1, 2, 3}, {4, 5, 6} };
+        System.out.println(sample[0][2]);
+
+        /*
+            You are creating a ticketing program for a small movie theater.
+            The seats are represented using a 2-dimensional array.
+            Each item can have the values 1 and 0 - 1 is occupied, and 0 if it's free.
+            Your program needs to take as input the row and the column of the seat and output Free if it's free, and Sold if it's not.
+         */
+        int[][] seats = {
+            {0, 0, 0, 1, 1, 1, 0, 0, 1, 1},
+            {1, 1, 0, 1, 0, 1, 1, 0, 0, 0},
+            {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
+            {0, 0, 0, 1, 1, 1, 1, 0, 0, 0},
+            {0, 1, 1, 1, 0, 0, 0, 1, 1, 1}
+            };
+        System.out.print("The row you want: ");
+        int row = sc.nextInt();
+        System.out.print("The column you want: ");
+        int col = sc.nextInt();
+
+        if (seats[row][col] > 0) {
+            System.out.println("Sold");
+        }else{
+            System.out.println("Free");
+        }
+
+        Welcome();
+
+        /*
+            You are making an automated response program for a store.
+            The bot should take a number from the user as input and reply with an automated message.
+            There are currently 3 responses, that you need to a handle:
+            User message: "1", Reply: "Order confirmed"
+            User message: "2", Reply: "info@sololearn.com"
+            For any other number, the reply should be: "Try again".
+            The given code calls a method called bot(). Define the method, which should take an integer input from the user, and handle the above mentioned cases, by outputting the corresponding reply.
+            Do not change the method call in main().
+         */
+        bot();
+
+
+        /*
+            You need to make a method that converts a foot value to inches.
+            1 foot has 12 inches. 
+            Define a convert() method, that takes the foot value as its argument and outputs the inches value.
+            The result must be a double.
+         */
+        double num = sc.nextDouble(); 
+        convert(num);
+
+        /*
+            You are making a Celsius to Fahrenheit converter. 
+            Write a method to take the Celsius value as an argument and return the corresponding Fahrenheit value.
+            Sample Input
+            36
+            Sample Output
+            96.8
+            The given code takes the celsius value as input and passes it to a fahr() method, which you need to create.
+         */
+        double c = sc.nextDouble(); 
+        System.out.println(fahr(c));
+        
+    }
+
+    static double fahr(double cels){
+        return 1.8*cels+32;
+    }
+
+    static void convert(double nm){
+        System.out.println(nm*12);
+    }
+
+    static void Welcome(){
+        System.out.println("Welcome!!");
+    }
+
+    static void bot(){
+        Scanner sc = new Scanner(System.in);
+        int num = sc.nextInt();
+
+        switch (num) {
+            case 1:
+                System.out.println("Order confirmed");
+                break;
+            case 2:
+                System.out.println("info@sololearn.com");
+                break;
+            default:
+                System.out.println("Try again");
+                break;
+        }
+    }
+}

CertificateLink.txt

@@ -0,0 +1 @@
+https://www.sololearn.com/certificates/CC-WHOYREFK

README.md

@@ -0,0 +1,2 @@
+In this repository I've completed the Introduction to Java course of SOLOLEARN.
+The official URL of the site: https://www.sololearn.com/en/learn/courses/java-introduction