using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
public class MainClass {
public static void Main() {
string[] words = { "ch", "a", "blue" };
double averageLength = words.Average(w => w.Length);
Console.WriteLine("The average word length is {0} characters.", averageLength);
}
}
Software Development
software development notes, main category for Cs, Java, and other programming experiences.
Average with int array
using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
IEnumerable<int> intSequence = Enumerable.Range(1, 10);
foreach (int i in intSequence)
Console.WriteLine(i);
double average = intSequence.Average();
Console.WriteLine("Here is the average: {0}", average);
}
}
uses Average to get the average of all values of an integer array.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
public class MainClass {
public static void Main() {
int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };
double averageNum = numbers.Average();
Console.WriteLine("The average number is {0}.", averageNum);
}
}
Contains, Any return a bool value
using System;
using System.Collections.Generic;
using System.Linq;
public class MainClass {
public static void Main() {
int[] numbers = { 10, 9, 8, 7, 6 };
bool hasTheNumberNine = numbers.Contains(9); // true
bool hasMoreThanZeroElements = numbers.Any(); // true
bool hasAnOddElement = numbers.Any(n => n % 2 == 1); // true
}
}
Any with false predicate
using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
string[] presidents = {"G", "H", "a", "H", "over", "Jack"};
bool any = presidents.Any(s => s.StartsWith("A"));
Console.WriteLine(any);
}
}
Any with string operator
using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
public static void Main() {
string[] presidents = {"G", "H", "a", "H", "over", "Jack"};
bool any = presidents.Any(s => s.StartsWith("Z"));
Console.WriteLine(any);
}
}
Use Quantifiers: Any
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
public class MainClass {
public static void Main() {
string[] words = { "bei", "rie", "rei", "field" };
bool iAfterE = words.Any(w => w.Contains("ei"));
Console.WriteLine("There is a word that contains in the list that contains 'ei': {0}", iAfterE);
}
}