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Found 34489 Articles for Programming
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
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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)
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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)
703 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)
283 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
![Arjun Thakur](https://www.tutorialspoint.com/assets/profiles/13574/profile/60_74441-1560315595.jpg)
8K+ Views
The Any method checks whether any of the element in a sequence satisfy a specific condition or not.If any element satisfy the condition, true is returned.Let us see an example.int[] arr = {5, 7, 10, 12, 15, 18, 20};Now, using Any() method, we will check whether any of the element in the above array is greater than 10 or not.arr.AsQueryable().All(val => val > 5);If any of the element satisfies the condition, then True is returned.Let us see the complete example.Example Live Demousing System; using System.Linq; class Demo { static void Main() { int[] arr = {5, 7, ... Read More
![karthikeya Boyini](https://www.tutorialspoint.com/assets/profiles/13518/profile/60_31598-1537784993.jpg)
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To convert a Double value to an Int64 value, use the Convert.ToInt64() method.Int64 represents a 64-bit signed integer.Let’s say the following is our double value.double val = 23.951213e12;Now to convert it to Int64.long longVal = Convert.ToInt64(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { double val = 23.951213e12; long longVal = Convert.ToInt64(val); Console.WriteLine("Converted double {0:E} to Int64 {1:N0} value ", val, longVal); } }OutputConverted double 2.395121E+013 to Int64 23,951,213,000,000 value
![Chandu yadav](https://www.tutorialspoint.com/assets/profiles/22330/profile/60_142811-1519038104.jpg)
7K+ Views
To convert a Byte value to an Int32 value, use the Convert.ToInt32() method.Int32 represents a 32-bit signed integer.Let’s say the following is our Byte value.byte val = Byte.MaxValue;;Now to convert it to Int32.int intVal = Convert.ToInt32(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { byte val = Byte.MaxValue;; int intVal = Convert.ToInt32(val); Console.WriteLine("Converted byte {0} to Int32 {1} value ", val, intVal); } }OutputConverted byte 255 to Int32 255 value
![Samual Sam](https://www.tutorialspoint.com/assets/profiles/13514/profile/60_83486-1512649303.jpg)
2K+ Views
To convert an Int32 value to a decimal, use the Convert.ToDecimal() method.Int32 represents a 32-bit signed integer.Let’s say the following is our Int32 value.int val = 2923;Now to convert it to decimal.decimal decVal = Convert.ToDecimal(val);Let us see the complete example.Example Live Demousing System; public class Demo { public static void Main() { int val = 2923; decimal decVal = Convert.ToDecimal(val); Console.WriteLine("Converted Int32 {0} to decimal {1:N2} value ", val, decVal); } }OutputConverted Int32 2923 to decimal 2,923.00 value