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Csharp Articles
Page 192 of 196
CharEnumerator.Dispose() Method in C#
The CharEnumerator.Dispose() method in C# is used to release all resources used by the current instance of the CharEnumerator class.Syntaxpublic void Dispose ();Let us now see an example to implement the CharEnumerator.Dispose() method −Exampleusing System; public class Demo { public static void Main(){ string strNum = "356"; CharEnumerator ch = strNum.GetEnumerator(); while (ch.MoveNext()) Console.Write(ch.Current + " "); // disposed ch.Dispose(); // this will show an error since we disposed the object above // Console.WriteLine(ch.Current); } }OutputThis will produce the following output −3 5 6
Read MoreCharEnumerator.Clone() Method in C#
The CharEnumerator.Clone() method in C# is used to create a copy of the current CharEnumerator object.Syntaxpublic object Clone();Let us now see an example to implement the CharEnumerator.Clone() method −Exampleusing System; public class Demo { public static void Main(){ string strNum = "356"; CharEnumerator ch = strNum.GetEnumerator(); while (ch.MoveNext()){ Console.Write(ch.Current + " "); CharEnumerator enumClone = (CharEnumerator)ch.Clone(); while (enumClone.MoveNext()) Console.Write(enumClone.Current + " "); Console.WriteLine(); } } }OutputThis will produce the following output −3 5 6 5 6 6
Read MoreChar.IsUpper() Method in C#
The Char.IsUpper() method in C# indicates whether the specified Unicode character is categorized as an uppercase letter.Syntaxpublic static bool IsUpper (char ch);Above, the parameter ch is the Unicode character to evaluate.Let us now see an example to implement the Char.IsUpper() method −Exampleusing System; public class Demo { public static void Main(){ bool res; char val = 'H'; Console.WriteLine("Value = "+val); res = Char.IsUpper(val); Console.WriteLine("Is the value an uppercae letter? = "+res); } }OutputThis will produce the following output −Value = H Is the ...
Read MoreChar.IsSymbol() Method in C#
The Char.IsSymbol() method in C# is indicating whether the character at the specified position in a specified string is categorized as a symbol character.Syntaxpublic static bool IsSymbol (string str, int index);Above, str is a string, whereas the position of the character to evaluate in str.Let us now see an example to implement the Char.IsSymbol() method −Exampleusing System; public class Demo { public static void Main(){ bool res; char val = 'P'; Console.WriteLine("Value = "+val); res = Char.IsSymbol(val); Console.WriteLine("Is the value a symbol? = "+res); ...
Read MoreChar.IsControl(String, Int32) Method in C#
The Char.IsControl(String, Int32) method in C# is used to indicate whether the character at the specified position in a specified string is categorized as a control character.Syntaxpublic static bool IsControl (string str, int index);Above, str is a string. The index parameter is the position of the character to evaluate in str.Let us now see an example to implement the Char.IsControl(String, Int32) method −Exampleusing System; using System.Globalization; public class Demo { public static void Main(){ string val = "hjk9878hj"; Console.WriteLine("String = "+val); UnicodeCategory unicode = Char.GetUnicodeCategory(val, 4); Console.WriteLine("The ...
Read MoreDictionary.ContainsValue() Method in C#
The Dictionary.ContainsValue() method in C# is used to check whether the Dictionary contains a specific value or not.Syntaxpublic bool ContainsValue (TValue val);Above, Val is the value to be searched.Let us now see an example to implement the Dictionary.ContainsValue() method −Exampleusing System; using System.Collections.Generic; public class Demo { public static void Main(){ Dictionary dict = new Dictionary(); dict.Add("One", "John"); dict.Add("Two", "Tom"); dict.Add("Three", "Jacob"); dict.Add("Four", "Kevin"); dict.Add("Five", "Nathan"); Console.WriteLine("Count of elements = "+dict.Count); Console.WriteLine("Key/value ...
Read MoreDictionary.ContainsKey() Method in C#
The Dictionary.ContainsKey() method in C# checks whether the Dictionary
Read MoreMedium-Earth Orbit Satellites
Medium earth orbit (MEO) satellites lie between the two Van Allen Belts. MEOs are also called Intermediate Circular Orbits (ICOs).The altitudes of these satellites range from 2, 000 km to 35, 000 km, i.e. above the low earth orbits and below the geosynchronous orbits. The orbital periods of MEOs range from 2 hours to more than 23 hours, depending upon their attitudes.Types of MEOs according to orbitsMEOs with circular orbits − They revolve at constant speed at an constant altitude.MEOs with elliptical orbits − Lowest altitude is called perigee and the speed is highest here. Highest altitude is called apogee ...
Read MoreComparison of double and float primitive types in C#
Precision states the difference between float and double data type. Float is a single precision (32 bit) floating point data type. Double is a double precision (64 bit) floating point data type. Range of a float type − -3.4 x 1038 to + 3.4 x 1038 Range of a double type is − (+/-)5.0 x 10-324 to (+/-)1.7 x 10308 Default value of a float type − 0.0F Default value of a double type − 0.0D
Read MoreWhat is the C# equivalent for the Java System.exit(0)?
The C# equivalent for Java System.exit(0) is − Environment.Exit(exitCode); The Environment.Exit() method terminates this process and returns an exit code to the operating system. Above, use exitCode as 0 (zero) to show that the process completed successfully. Use exitCode as a non-zero number to show an error, for example − Environment.Exit(1) Return a value 1 to show that the file you want is not present Environment.Exit(2)exit Return a value 2 to indicate that the file is in an incorrect format.
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