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The WindowsLeft property gets or sets the leftmost position of the console window area relative to the screen buffer.Declare an integer variable to get the leftmost position.int left;Now, use the Console.WindowLeft property.left = Console.WindowLeftLet us see the complete example.Example Live Demousing System; class Demo { static void Main() { int left; left = Console.WindowLeft; Console.WriteLine("Left position of the Console window = "+left); } }OutputNote: The output may vary accordingly based on the position of the Console WindowLeft position of the Console window = 0
The frequency or position of bracketed character sequences and single characters can be denoted by a special character. Each special character has a specific connotation. The +, *, ?, and $ flags all follow a character sequence.Sr.NoExpression & Description1p+It matches any string containing one or more p's.2p*It matches any string containing zero or more p's.3p?It matches any string containing at most one p.4p{N}It matches any string containing a sequence of N p's5p{2, 3}It matches any string containing a sequence of two or three p's.6p{2, }It matches any string containing a sequence of at least two p's.7p$It matches any string with p ... Read More
Let’s say the following are two DateTime objects for our dates.DateTime date1 = new DateTime(2018, 8, 11, 08, 15, 20); DateTime date2 = new DateTime(2018, 8, 11, 11, 14, 25);Find the difference between both these dates using TimeSpan.TimeSpan ts = date2 - date1;Now to get the Milliseconds, use the following property −ts.TotalMillisecondsLet us see the complete code.Example Live Demousing System; using System.Linq; public class Demo { public static void Main() { DateTime date1 = new DateTime(2018, 8, 11, 08, 15, 20); DateTime date2 = new DateTime(2018, 8, 11, 11, 14, 25); TimeSpan ts = date2 - date1; Console.WriteLine("No. of Seconds (Difference) = {0}", ts.TotalMilliseconds); } }OutputNo. of Seconds (Difference) = 10745000
Use the AsEnumerable() method to cast a type to its IEnumerable equivalent. It is an extension method.For our example, we have set an array.int[] myArr = new int[10]; myArr[0] = 1; myArr[1] = 2; myArr[2] = 3; myArr[3] = 4; myArr[4] = 5;Now, we have used the AsEnumerable() method to cast.myArr.AsEnumerable();Example Live Demousing System; using System.Linq; class Demo { static void Main() { int[] myArr = new int[10]; myArr[0] = 1; myArr[1] = 2; myArr[2] = 3; myArr[3] = 4; myArr[4] = 5; myArr[5] = 6; myArr[6] = 7; myArr[7] = 8; myArr[8] = 9; myArr[9] = 10; // AsEnumerable var a = myArr.AsEnumerable(); // Displaying foreach (var item in a) { Console.WriteLine(item); } } }Output1 2 3 4 5 6 7 8 9 10
This method returns true if the entered string has only whitespace characters or is null.Let’s say you are checking for whitespace character.bool val1 = string.IsNullOrWhiteSpace(“ “);The above returns True, since the string is a whitespace character. In the same way, check it for null using the IsNullOrWhiteSpace() method.Here is the entire example that checks for null and whitespace −Exampleusing System; using System.IO; public class Demo { public static void Main() { bool val1 = string.IsNullOrWhiteSpace(“100”); bool val2 = string.IsNullOrWhiteSpace(" "); bool val3 = string.IsNullOrWhiteSpace(null); Console.WriteLine(val1); Console.WriteLine(val2); Console.WriteLine(val3); } }
The Long Time format specifier represents a custom date and time format string.It is defined by DateTimeFormatInfo.LongTimePattern property.The custom format string.HH:mm:ssExample Live Demousing System; using System.Globalization; class Demo { static void Main() { DateTime date = new DateTime(2018, 9, 9, 8, 15, 30); Console.WriteLine(date.ToString("T", CultureInfo.CreateSpecificCulture("en-us"))); } }Output8:15:30 AM
The Full Date Short Time standard format specifier represents a combination of the long date ("D") and short time ("t") patterns.UseDateTime to set the date.DateTime myDate = new DateTime(2018, 8, 29, 1, 10, 0);Now, use the (“f”) format specifier like this −myDate.ToString("f", CultureInfo.CreateSpecificCulture("en-US"))The following is an example −Example Live Demousing System; using System.Globalization; class Demo { static void Main() { DateTime myDate = new DateTime(2018, 8, 29, 1, 10, 0); Console.WriteLine(myDate.ToString("f",CultureInfo.CreateSpecificCulture("en-US"))); } }OutputWednesday, August 29, 2018 1:10 AM
Convert a specified value to a single-precision floating-point number using the Convert.ToSingle() method in C#.Here is our bool −bool boolVal = false;Now, let us use the ToSingle() method to convert the value to a single precision floating-point.float floatVal; floatVal = Convert.ToSingle(boolVal);Example Live Demousing System; public class Demo { public static void Main() { bool boolVal = false; float floatVal; floatVal = Convert.ToSingle(boolVal); Console.WriteLine("Converted {0} to {1}", boolVal, floatVal); } }OutputConverted False to 0
Firstly, get the current date.DateTime.TodayNow, use AddDays() method to add days to the current date. Here, we are adding 10 days to the current date.DateTime.Today.AddDays(10)Let us see the complete code −Example Live Demousing System; using System.Linq; public class Demo { public static void Main() { Console.WriteLine("Today = {0}", DateTime.Today); Console.WriteLine("Add 10 Days = {0}", DateTime.Today.AddDays(10)); } }OutputToday = 9/11/2018 12:00:00 AM Add 10 Days = 9/21/2018 12:00:00 AM
Declare an array and initialize elements.int[] marks = { 45, 50, 60, 70, 85 };Use the SkipLast() method to skip elements of an array from the end.IEnumerable selMarks = marks.AsQueryable().SkipLast(3);The elements are skipped and rest of the elements is returned as shown below −Example Live Demousing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { int[] marks = { 45, 50, 60, 70, 85 }; Console.WriteLine("Array..."); foreach (int res in marks) Console.WriteLine(res); IEnumerable selMarks = marks.AsQueryable().SkipLast(3); Console.WriteLine("Array after skipping last 3 elements..."); foreach (int res in selMarks) Console.WriteLine(res); } }OutputArray... 45 50 60 70 85 Array after skipping last 3 elements... 45 50