static void Main()
{
IEnumerable<int> list = new List<int>() { 5, 6, 7, 8, 3, 4, 6, 1 };
int sum = list.SumOfCollection();
int product = list.ProductOfCollection();
int min = list.MinElement();
int max = list.MaxElement();
int average = list.AverageOfCollection();
Console.WriteLine(average);
}
public static void Main()
{
List<int> nums = new List<int>() { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
var filteredCollect = nums.WhereNot(num => num % 2 == 0);
Console.WriteLine(string.Join(", ", filteredCollect));
var students = new List<Student>()
{
new Student("Pipo", 3.50),
new Student("Miko", 2.99),
new Student("Maq", 6.0)
};
Console.WriteLine(students.MaxElement(st => st.Grades));
}
static void Main(string[] args)
{
/* Substring test*/
StringBuilder str = new StringBuilder("abcdef");
StringBuilder substringStr = str.Substring(0, 2); // substring from 0 to 1
Console.WriteLine(substringStr.ToString());
Console.WriteLine("-------------------------");
/* IEnumerable test */
List<int> list = new List<int>
{
1, 3, 5, 7, 21
};
int sum = list.Sum<int>();
Console.WriteLine("sum = {0}", sum);
int product = list.Product<int>();
Console.WriteLine("product = {0}", product);
int max = list.MaxElement<int>();
Console.WriteLine("max = {0}", max);
int min = list.MinElement<int>();
Console.WriteLine("min = {0}", min); // TODO Fix min = 0
int avg = list.Average<int>();
Console.WriteLine("avg = {0}", avg); // TODO Fix avg = 0
Console.WriteLine("-------------------------");
/* First before last test */
Student[] arrayOfStudents = new Student[]
{
new Student("Pesho", "Toshev", 72),
new Student("Pesho", "Goshev", 21),
new Student("Pesheto", "Peshev", 19),
new Student("Peneto", "Oshev", 17),
new Student("Gosho", "Peshev", 32)
};
Student[] array = LINQMethods.FirstBeforeLastName(arrayOfStudents);
foreach (var student in array)
{
Console.WriteLine(student.ToString());
}
Console.WriteLine("-------------------------");
/* Age Range Test*/
string[] students = LINQMethods.AgeRange(arrayOfStudents);
foreach (var student in students)
{
Console.WriteLine(student);
}
Console.WriteLine("-------------------------");
/* Order Student */
array = LINQMethods.OrderStudents(arrayOfStudents);
foreach (var student in array)
{
Console.WriteLine(student.ToString());
}
Console.WriteLine("-------------------------");
/* Divisible by 7 and 3 */
LINQMethods.PrintNumsDivisibleBy7And3(list.ToArray());
Console.WriteLine("-------------------------");
// //////////////////////////////////////// 7 and 8
/* Student groups */
List<Student> listOfStudents = new List<Student>
{
new Student("Name5", "Namov", 34, "1211", "02000s", "[email protected]", new List<int> { 5, 6, 4 }, 2, new Group(1, "Math")),
new Student("Name2", "Namov2", 3, "1211", "000s", "[email protected]", new List<int> { 5, 6, 4 }, 2, new Group(2, "Sport")),
new Student("Name3", "Namov3", 4, "1211", "000s", "[email protected]", new List<int> { 5, 6, 4 }, 1, new Group(1, "Math")),
new Student("Name4", "Namov4", 11, "1211", "02000s", "[email protected]", new List<int> { 5, 6, 4 }, 12, new Group(3, "Biology")),
new Student("Name", "Namov5", 20, "1211", "000s", "[email protected]", new List<int> { 5, 6, 4 }, 2, new Group(1, "Math"))
};
Student[] newArrOfStudents = LINQMethods.StudentsGroup(listOfStudents);
foreach (Student student in newArrOfStudents)
{
Console.WriteLine(student.ToStringAll());
}
Console.WriteLine("-------------------------");
//// 10
/* Extract students by email */
newArrOfStudents = LINQMethods.ExtractStudentsByEmail(listOfStudents);
foreach (Student student in newArrOfStudents)
{
Console.WriteLine(student.ToStringAll());
}
Console.WriteLine("-------------------------");
/* Extract students by phone */
newArrOfStudents = LINQMethods.ExtractStudentsByPhone(listOfStudents);
foreach (Student student in newArrOfStudents)
{
Console.WriteLine(student.ToStringAll());
}
Console.WriteLine("-------------------------");
//////// 14, 15
/* Infinite Convergent Series */
double precision = 0.001;
Console.WriteLine("1 + 1/2 + 1/4 + 1/8 + 1/16 + ... = {0:f2}", InfiniteConvergentSeries.ConvergentSum(i => 1.0 / Math.Pow(2, i), precision));
Console.WriteLine("1 + 1/2! + 1/3! + 1/4! + 1/5! + ... = {0:f2}", InfiniteConvergentSeries.ConvergentSum(i => 1.0 / InfiniteConvergentSeries
.Factorial(i + 1), precision));
Console.WriteLine("1 + 1/2 - 1/4 + 1/8 - 1/16 + ... = {0:f2}", InfiniteConvergentSeries.ConvergentSum(i => i == 0 ? 1 : -1.0 / Math.Pow(-2, i), precision));
Console.WriteLine("-------------------------");
/* Timer */
TimerDelegate timerDelegate = new TimerDelegate(1, test);
Console.WriteLine("-------------------------");
}
