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Found 34494 Articles for Programming
![Ankith Reddy](https://www.tutorialspoint.com/assets/profiles/22328/profile/60_142162-1519038074.jpg)
1K+ Views
To get the Upperbound and Lowerbound, use the GetUpperBound() GetLowerBound() methods in C#, respectively.The parameter to be set under these methods is the dimensions i.e.Let’s say our 3D array is −int[, , ] arr = new int[2, 3, 4];For a three-dimensional arrays, dimension 0.arr.GetUpperBound(0) arr.GetLowerBound(0)For a three-dimensional arrays, dimension 1.arr.GetUpperBound(1) arr.GetLowerBound(1)For a three-dimensional arrays, dimension 2.arr.GetUpperBound(2) arr.GetLowerBound(2)Example Live Demousing System; class Program { static void Main() { int[, , ] arr = new int[2, 3, 4]; Console.WriteLine("Dimension 0 Upper Bound: {0}", arr.GetUpperBound(0).ToString()); Console.WriteLine("Dimension 0 Lower Bound: {0}", arr.GetLowerBound(0).ToString()); ... Read More
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
215 Views
This method is used to handle empty collections. Instead of showing an error, this method displays a default value.We have the following list.List myList = new List();As you can see, since the above list is empty, we can display the default value.var res = myList.DefaultIfEmpty();Let us see an example.Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { List myList = new List(); var res = myList.DefaultIfEmpty(); foreach (var a in res) { Console.WriteLine(a); } } }Output0
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
451 Views
The Count method returns the count of elements in a sequence.Let us first set an array.string[] arr = { "Java", "C++", "Python"};Now, use the Count() method to count the array elements.arr.AsQueryable().Count();The following is the complete example.Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { string[] arr = { "Java", "C++", "Python"}; int arr_count = arr.AsQueryable().Count(); Console.WriteLine("Count of arrays: {0}", arr_count); } }OutputCount of arrays: 3
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
2K+ Views
Use Linq Contains() method to search for as specific string in an array of strings.string[] arr = { "Bag", "Pen", "Pencil"};Now, add the string in a string variable i.e. the string you want to search.string str = "Pen";Use the Contains() method to search the above string.arr.AsQueryable().Contains(str);Let us see the entire example.Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { string[] arr = { "Bag", "Pen", "Pencil"}; string str = "Pen"; bool res = arr.AsQueryable().Contains(str); Console.WriteLine("String Pen is in the array? "+res); ... Read More
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
2K+ Views
To check for an element in a string, use the Contains() method.The following is our string array.string[] arr = { "Java", "C++", "Python"};Now, use Contains() method to find a specific string in the string array.arr.AsQueryable().Contains(str);Let us see the complete example.Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { string[] arr = { "Java", "C++", "Python"}; string str = "Python"; bool res = arr.AsQueryable().Contains(str); Console.WriteLine("Array has Python? "+res); } }OutputArray has Python? True
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
1K+ Views
To cast elements, use the Cast() method.The following is our list.List myList = new List { "Mac", "Windows", "Linux", "Solaris" };Now, cast and use the Cast() method with substring() method to display the first two letters of every string in the list.IEnumerable res = myList.AsQueryable().Cast().Select(str => str.Substring(0, 2));Let us see the complete example.Example Live Demousing System; using System.Linq; using System.Collections.Generic; class Demo { static void Main() { List list = new List { "keyboard", "mouse", "joystick", "monitor" }; // getting first 2 letters from every string IEnumerable res = list.AsQueryable().Cast().Select(str => ... Read More
![George John](https://www.tutorialspoint.com/assets/profiles/13511/profile/60_58410-1512537824.png)
18K+ Views
To find the average of integers in C#, use the Queryable Average() method.Let’s say the following is our integer array.var arr = new int[] { 10, 17, 25, 30, 40, 55, 60, 70 };Now, use the Average() method to get the average of the elements.double avg = Queryable.Average(arr.AsQueryable());Example Live Demousing System; using System.Linq; class Demo { static void Main() { var arr = new int[] { 10, 17, 25, 30, 40, 55, 60, 70 }; double avg = Queryable.Average(arr.AsQueryable()); Console.WriteLine("Average = "+avg); } }OutputAverage = 38.375
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
702 Views
Implicit conversion of a 32-bit unsigned integer (UInt) to a Decimal requires you to first declare a UInt.uint val = 342741539;Now to convert it to decimal, just assign the value.decimal dec; // implicit dec = val;Example Live Demousing System; public class Demo { public static void Main() { uint val = 342741539; decimal dec; // implicit dec = val; Console.WriteLine("Decimal = "+dec); } }OutputDecimal = 342741539
![Ankith Reddy](https://www.tutorialspoint.com/assets/profiles/22328/profile/60_142162-1519038074.jpg)
282 Views
Byte represents an 8-bit unsigned integer.Implicit conversion of an 8-bit unsigned integer (Byte) to a Decimal is possible. Let us see how.Here’s our Byte value.byte val = 16;To implicitly convert, just assign the value as shown below −decimal dec; dec = val;Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { byte val = 16; decimal dec; // implicit dec = val; Console.WriteLine("Decimal ="+dec); } }OutputDecimal =16
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
15K+ Views
To convert a Double value to an integer value, use the Convert.ToInt32() method.Int32 represents a 32-bit signed integer.Let’s say the following is our double value.double val = 21.34;Now to convert it to Int32.int res = Convert.ToInt32(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { double val = 21.34; int res = Convert.ToInt32(val); Console.WriteLine("Converted double {0} to integer {1} ", val, res); } }OutputConverted double 21.34 to integer 21