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Convert a specified value to a 16-bit signed integer using the Convert.ToInt16 method in C#.We have a double variable with a value initialized to it.double doubleNum = 3.456;Now, let us convert it to Int16 i.e. short.short shortNum; shortNum = Convert.ToInt16(doubleNum);Here is the complete example −Example Live Demousing System; public class Demo { public static void Main() { double doubleNum = 3.456; short shortNum; shortNum = Convert.ToInt16(doubleNum); Console.WriteLine("Converted {0} to {1}", doubleNum, shortNum); } }OutputConverted 3.456 to 3
Use the Convert.ToUInt16 method to convert a specified value to a 16-bit unsigned integer.Here is our string −string str = "1129";Now let us convert it to 16-bit unsigned integer.ushort res; res = Convert.ToUInt16(str);The following is the complete example −Example Live Demousing System; public class Demo { public static void Main() { string str = "1307"; ushort res; res = Convert.ToUInt16(str); Console.WriteLine("Converted string '{0}' to {1}", str, res); } }OutputConverted string '1307' to 1307
Enumerable.Repeat method is part of System.Linq namespace.It returns a collection with repeated elements in C#.Firstly, set which element you want to repeat and how many times.As an example, let us see how to repeat number 10, five times −Enumerable.Repeat(10, 5);The following is the complete example −Example Live Demousing System; using System.Linq; class Demo { static void Main() { var val = Enumerable.Repeat(10, 5); foreach (int res in val) { Console.WriteLine(res); } } }Output10 10 10 10 10
The Aggregate() method applies an accumulator function over a sequence.The following is our array −string[] arr = { "DemoOne", "DemoTwo", "DemoThree", "DemoFour"};Now use the Aggregate() method. We have set the ssed value as “DemoFive” for comparison.string res = arr.AsQueryable().Aggregate("DemoFive", (longest, next) => next.Length > longest.Length ? next : longest, str => str.ToLower());Here, the resultant string should have more number of characters than the initial seed value i.e. “DemoFive”.Example Live Demousing System; using System.Linq; class Demo { static void Main() { string[] arr = { "DemoOne", "DemoTwo", "DemoThree", "DemoFour"}; string res = arr.AsQueryable().Aggregate("DemoFive", (longest, next) ... Read More
To represent Int64 as a Binary string in C#, use the ToString() method and set the base as the ToString() method’s second parameter i.e. 2 for Binary.Int64 represents a 64-bit signed integer.Firstly, set an Int64 variable.long val = 753458;Now, convert it to binary string by including 2 as the second parameter.Convert.ToString(val, 2)Example Live Demousing System; class Demo { static void Main() { long val = 753458; Console.WriteLine("Long: "+val); Console.Write("Binary String: "+Convert.ToString(val, 2)); } }OutputLong: 753458 Binary String: 10110111111100110010
The All Method checks for all the values in a collection and returns a Boolean. Even if one of the element do not satisfy the set condition, the All() method returns False.Let us see an example −int[] arr = {10, 15, 20};Now, using All() method, we will check whether each element in the above array is greater than 5 or not.arr.AsQueryable().All(val => val > 5);Example Live Demousing System; using System.Linq; class Demo { static void Main() { int[] arr = {10, 15, 20}; // checking if all the array elements are greater than 5 bool res = arr.AsQueryable().All(val => val > 5); Console.WriteLine(res); } }OutputTrue
Here is the string.string str = "ppqqrr";Now, use Hashset to map the string to char. This will remove the duplicate characters from a string.var res = new HashSet(str);Let us see the complete example −Example Live Demousing System; using System.Linq; using System.Collections.Generic; namespace Demo { class Program { static void Main(string[] args) { string str = "ppqqrr"; Console.WriteLine("Initial String: "+str); var res = new HashSet(str); Console.Write("New String after removing duplicates:"); foreach (char c in res){ Console.Write(c); } } } }OutputInitial String: ppqqrr New String after removing duplicates:pqr
To get the distinct elements, use the Distinct() method.The following is our list with duplicate elements.List points = new List { 5, 10, 5, 20, 30, 30, 40, 50, 60, 70 };Now to get the distinct elements −points.AsQueryable().Distinct();Let us see the entire example −Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { List points = new List { 5, 10, 5, 20, 30, 30, 40, 50, 60, 70 }; // distict elements from the list IEnumerable res = points.AsQueryable().Distinct(); foreach (int a in res) { Console.WriteLine(a); } } }Output5 10 20 30 40 50 60 70
This round-trip ("R") format specifier is supported for the Single, Double, and BigInteger types.It ensures that a numeric value converted to a string is parsed back into the same numeric value.Let us see an example −Firstly, we have a double variable.double doubleVal = 0.91234582637;Now, use the ToString() method: and set the Round-trip format specifier.doubleVal.ToString("R", CultureInfo.InvariantCulture);Let us see the complete example −Example Live Demousing System; using System.Numerics; using System.Globalization; class Demo { static void Main() { double doubleVal = 0.91234582637; string str = doubleVal.ToString("R", CultureInfo.InvariantCulture); double resRound = double.Parse(str, CultureInfo.InvariantCulture); ... Read More
The hexadecimal ("X") format specifier is used to convert a number to a string of hexadecimal digits.Set the case of the format specifier for uppercase or lowercase characters to be worked on hexadecimal digits greater than 9.Let us understand this with an example −“X” for PQR, whereas “x” for pqrExample Live Demousing System; using System.Numerics; using System.Globalization; class Demo { static void Main() { int num; num = 345672832; Console.WriteLine(num.ToString("X")); Console.WriteLine(num.ToString("X2")); num = 0x307e; Console.WriteLine(num.ToString("x")); Console.WriteLine(num.ToString("X")); } }Output149A8C80 149A8C80 307e 307E