Csharp Articles - Page 83 of 258

The Object.GetHashCode() method in C# is used to serve as the default hash function.Syntaxpublic virtual int GetHashCode ();ExampleLet us now see an example - Live Demousing System; public class Demo {    public static void Main() {       Object ob = new Object();       String str = "Jim";       Type type1 = ob.GetType();       Type type2 = str.GetType();       Console.WriteLine("Hash Code = "+type1.GetHashCode());       Console.WriteLine("Hash Code = "+type2.GetHashCode());    } }OutputHash Code =30015890 Hash Code =21083178ExampleLet us now see another example:using System; public struct Value {    private int v1;    private int ... Read More

The IsNullOrWhiteSpace() method in C# is used to indicate whether a specified string is null, empty, or consists only of white-space characters.Syntaxpublic static bool IsNullOrWhiteSpace (string val);Above, the parameter val is the string to test. Let us now see an example −ExampleLet us now see an example: Live Demousing System; public class Demo {    public static void Main() {       string str1 = null;       string str2 = String.Empty;       Console.WriteLine("Is string1 null or whitespace? = "+String.IsNullOrWhiteSpace(str1));       Console.WriteLine("Is string2 null or whitespace? = "+String.IsNullOrWhiteSpace(str2));    } }OutputThis will produce the following ... Read More

The BitConverter.ToUInt16() method in C# is used to return a 16-bit unsigned integer converted from two bytes at a specified position in a byte array.Syntaxpublic static ushort ToUInt16 (byte[] val, int begnIndex);Above, val is the byte array, whereas begnIndex is the beginning position within val.ExampleLet us now see an example - Live Demousing System; public class Demo {    public static void Main() {       byte[] arr = { 10, 20, 30, 40, 50};       int count = arr.Length;       Console.Write("Byte Array... ");       for (int i = 0; i < count; i++) ... Read More

The TimeSpan.FromSeconds() method in C# is used to return a TimeSpan that represents a specified number of seconds, where the specification is accurate to the nearest millisecond.SyntaxThe syntax is as follows -public static TimeSpan FromSeconds (double val);Above, the parameter val is the number of seconds, accurate to the nearest millisecond.ExampleLet us now see an example - Live Demousing System; public class Demo {    public static void Main() {       TimeSpan span1 = TimeSpan.FromSeconds(0.6768788);       TimeSpan span2 = new TimeSpan(25, 15, 45);       TimeSpan span3 = TimeSpan.FromHours(.4788);       TimeSpan span4 = TimeSpan.FromMilliseconds(0.8787);   ... Read More

The TimeSpan.FromMinutes() method in C# is used to return a TimeSpan that represents a specified number of minutes, where the specification is accurate to the nearest millisecond.Syntaxpublic static TimeSpan FromMinutes (double val);Above, the value val is the number of minutes, accurate to the nearest millisecond.Example Live Demousing System; public class Demo {    public static void Main() {       TimeSpan span1 = TimeSpan.FromHours(0.78787);       TimeSpan span2 = new TimeSpan(10, 30, 40);       TimeSpan span3 = TimeSpan.FromHours(5);       TimeSpan span4 = TimeSpan.FromMilliseconds(1);       TimeSpan span5 = TimeSpan.FromMinutes(100);       Console.WriteLine("TimeSpan1 = ... Read More

The String.Contains() method in C# is used to return a value indicating whether a specified substring occurs within this string.Syntaxpublic bool Contains (string val);Above, val is the string to search for.Example Live Demousing System; public class Demo {    public static void Main(String[] args) {       string str1 = "Akon";       string str2 = "Ak";       Console.WriteLine("String 1 = "+str1);       Console.WriteLine("HashCode of String 1 = "+str1.GetHashCode());       Console.WriteLine("String 2 = "+str2);       Console.WriteLine("HashCode of String 2 = "+str2.GetHashCode());       Console.WriteLine("String 1 is equal to String 2: ... Read More

The Stack.TrimExcess() method in C# is used to set the capacity to the actual number of elements in the List, if that number is less than a threshold value.Syntaxpublic void TrimExcess ();Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main() {       Stack stack = new Stack();       stack.Push(100);       stack.Push(150);       stack.Push(175);       stack.Push(200);       stack.Push(225);       stack.Push(250);       stack.Push(300);       stack.Push(400);       stack.Push(450);       stack.Push(500);       Console.WriteLine("Elements in the ... Read More

The Array.BinarySearch(Array, Object) method in C# is used to search an entire one-dimensional sorted array for a specific element, using the IComparable interface implemented by each element of the array and by the specified object.Syntaxpublic static int BinarySearch (Array arr, object val);Above, arr is the sorted 1-D array, whereas val is the object to search for.Example Live Demousing System; public class Demo {    public static void Main() {       int[] intArr = {5, 10, 15, 20};       Array.Sort(intArr);       Console.WriteLine("Array elements...");       foreach(int i in intArr) {          Console.WriteLine(i); ... Read More

The Copy() method in C# is used to create a new instance of String with the same value as a specified String.Syntaxpublic static string Copy (string s);Above, s is the string to copy.Example Live Demousing System; public class Demo {    public static void Main(string[] args) {       string s1 = "Amy";       string s2 = "Katie";       string s3 = String.Copy(s2);       Console.WriteLine("String1 = "+s1);       Console.WriteLine("String2 = "+s2);       Console.WriteLine("Are both the strings equal? = "+s1.Equals(s2));       Console.WriteLine("Are both the strings equal? = "+s2.Equals(s3));   ... Read More

The StringBuilder.ToString() method in C# is used to convert the value of a StringBuilder to a String.SyntaxThe syntax is as follows −public override string ToString (); public string ToString (int begnIndex, int len);Above, the parameter begnIndex is the starting position of the substring in this instance, whereas len is the length of the substring.ExampleLet us now see an example − Live Demousing System; using System.Text; public class Demo{    public static void Main(){       StringBuilder strBuilder = new StringBuilder("Katie");       Console.WriteLine("String = "+strBuilder.ToString());       Console.WriteLine("StringBuilder capacity = "+strBuilder.Capacity);       Console.WriteLine("StringBuilder length = "+strBuilder.Length); ... Read More