Complete exercises

Exercise1.cs

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+using System;
+
+class Student
+{
+    private string name;
+    private int age;
+
+    public string Name
+    {
+        get { return name; }
+        set { name = value; }
+    }
+
+    public int Age
+    {
+        get { return age; }
+        set { age = value; }
+    }
+
+
+    public Student(string name, int age)
+    {
+        this.name = name;
+        this.age = age;
+    }
+
+
+    public void Introduce()
+    {
+        Console.WriteLine($"Hello, my name is {name} and I am {age} years old");
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        Student student1 = new Student("Ali", 20);
+
+        student1.Introduce();
+    }
+}

Exercise2.cs

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+using System;
+
+class BankAccount
+{
+    private int balance;
+
+    public BankAccount(int initialBalance)
+    {
+        balance = initialBalance;
+    }
+
+
+    public void Deposit(double amount)
+    {
+        balance += (int)amount;
+        Console.WriteLine($"{amount} deposited successfully.");
+    }
+
+
+    public void Withdraw(double amount)
+    {
+        if (amount > balance)
+        {
+            Console.WriteLine("Insufficient balance.");
+        }
+        else
+        {
+            balance -= (int)amount;
+            Console.WriteLine($"{amount} withdrawn successfully.");
+        }
+    }
+
+
+    public void ShowBalance()
+    {
+        Console.WriteLine($"Current Balance: {balance}");
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        BankAccount account = new BankAccount(1000);
+
+        account.ShowBalance();
+
+        account.Deposit(500);
+        account.ShowBalance();
+
+        account.Withdraw(300);
+        account.ShowBalance();
+
+        account.Withdraw(1500);
+        account.ShowBalance();
+    }
+}

Exercise3.cs

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+using System;
+
+class Statistics
+{
+    public static void AnalyzeNumbers(int firstNumber, ref int secondNumber, out int thirdNumber)
+    {
+
+        Console.WriteLine($"First Number: {firstNumber}");
+
+
+        thirdNumber = firstNumber + secondNumber;
+
+
+        secondNumber = secondNumber * secondNumber;
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        Console.Write("Enter first number: ");
+        int num1 = Convert.ToInt32(Console.ReadLine());
+
+        Console.Write("Enter second number: ");
+        int num2 = Convert.ToInt32(Console.ReadLine());
+
+        Console.Write("Enter third number: ");
+        int num3 = Convert.ToInt32(Console.ReadLine());
+
+        Console.WriteLine("\nBefore calling method:");
+        Console.WriteLine($"num1 = {num1}");
+        Console.WriteLine($"num2 = {num2}");
+        Console.WriteLine($"num3 = {num3}");
+
+        Statistics.AnalyzeNumbers(num1, ref num2, out num3);
+
+        Console.WriteLine("\nAfter calling method:");
+        Console.WriteLine($"num1 = {num1}");
+        Console.WriteLine($"num2 = {num2}");
+        Console.WriteLine($"num3 = {num3}");
+    }
+}

Exercise4.cs

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+using System;
+
+class ArrayAnalyzer
+{
+    public static void AnalyzeArray(int[] numbers, ref int max, out double average)
+    {
+        if (numbers.Length == 0)
+        {
+            max = 0;
+            average = 0.0;
+            return;
+        }
+
+        max = numbers[0];
+        int sum = 0;
+
+        foreach (int number in numbers)
+        {
+            if (number > max)
+            {
+                max = number;
+            }
+
+            sum += number;
+        }
+
+        average = (double)sum / numbers.Length;
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        Console.Write("Enter array size: ");
+        int size = int.Parse(Console.ReadLine());
+
+        int[] numbers = new int[size];
+
+        for (int i = 0; i < size; i++)
+        {
+            Console.Write($"Enter element {i + 1}: ");
+            numbers[i] = int.Parse(Console.ReadLine());
+        }
+
+        int max = 0;
+        double average;
+
+        ArrayAnalyzer.AnalyzeArray(numbers, ref max, out average);
+
+        Console.WriteLine($"Maximum Number: {max}");
+        Console.WriteLine($"Average: {average}");
+    }
+}