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Use the Environment.ProcessorCount to get the total number of cores on a computer −Environment.ProcessorCountThe following is the code that displays the total number of cores on a computer in C# −ExampleUsing System; namespace Demo { class Program { static void Main(string[] args) { Console.WriteLine(Environment.ProcessorCount); } } }
To handle file paths, the Path class is used in C#.Set the file name in a string −string myPath = "D:ew\quiz.txt";Now, to get the extension, use the GetExtension() method −Path.GetExtension(myPath)Here is the complete code −Example Live Demousing System; using System.IO; namespace Demo { class Program { static void Main(string[] args) { string myPath = "D:ew\quiz.txt"; Console.WriteLine(Path.GetExtension(myPath)); } } }Output.txt
Set the path name in a string −string myPath = "D:ew\quiz.txt";Now, use the GetFileName() method to get the name of the file −Path.GetFileName(myPath)The following is the complete code −Example Live Demousing System; using System.IO; namespace Demo { class Program { static void Main(string[] args) { string myPath = "D:ew\quiz.txt"; // get extension Console.WriteLine("Extension: "+Path.GetExtension(myPath)); // get path Console.WriteLine("File Path: "+Path.GetFileName(myPath)); } } }OutputExtension: .txt File Path: D:ew\quiz.txt
The Enviornment.NewLine in C# is used to add newline.To set a new line in between words −str = "This is demo text!" + Environment.NewLine + "This is demo text on next line!";The following is the code −Example Live Demousing System; using System.IO; namespace Demo { class Program { static void Main(string[] args) { string str = "This is demo text!" + Environment.NewLine + "This is demo text on next line!"; Console.Write(str); } } }OutputThis is demo text! This is demo text on next line!
To get all the disk drives on a system, use the GetLogicalDrives() method in C# −Environment.GetLogicalDrives()Use it with Join method to get the comma-separated list of logical drives −string.Join(",", Environment.GetLogicalDrives())Example Live Demousing System; using System.IO; namespace Demo { class Program { static void Main(string[] args) { Console.WriteLine(string.Join(",", Environment.GetLogicalDrives())); } } }Output/,/etc/resolv.conf,/etc/hostname,/etc/hosts,/run/secrets,/home/cg/root
EnumerateFile() method is used in C# to get all the files. Use AllDirectories property to recurse through directories −Directory.EnumerateFiles(@"D:\NEW", "*.*", SearchOption.AllDirectories)To get the list of files in a directory, use the SearchOptions.AllDirectories in C# as shown above.Let us see how −Exampleusing System; using System.IO; namespace Demo { class Program { static void Main(string[] args) { foreach (string allFiles is Directory.EnumerateFiles(@"D:\NEW","*.*",SearchOption.AllDirectories)) { Console.WriteLine(allFiles); } } } }OutputThe following is the output −D:\NEW\my.txt D:\NEW\amit.html D:\NEW\tutorials\java\a.java
Fibonacci numbers are the numbers such that every number in the series after the first two is the sum of the two preceding ones. The series starts with 1, 1. Example −1, 1, 2, 3, 5, 8, 13, 21, 34, ….We can write a program to generate nth as follows −functionfibNaive(n) { if (n
The Func generic type store anonymous methods and is a parameterized type.In the below example, we have 4 func type instance −The first type receives int and returns stringFunc one = (p) => string.Format("{0}", p);The second type receives bool & long and returns stringFunc two = (q, p) =>string.Format("{0} and {1}", q, p);The third type receives bool & int and returns stringFunc three = (q, p) => string.Format("{0} and {1}", q, p);The fourth type receives decimal and returns stringFunc four = (p) =>string.Format("{0}", p);Let us see how to display them −Example Live Demousing System; using System.IO; namespace Demo { ... Read More
The interface between a process and an operating system is provided by system calls. In general, system calls are available as assembly language instructions. They are also included in the manuals used by the assembly level programmers.Unix System CallsSystem calls in Unix are used for file system control, process control, interprocess communication etc. Access to the Unix kernel is only available through these system calls. Generally, system calls are similar to function calls, the only difference is that they remove the control from the user process.There are around 80 system calls in the Unix interface currently. Details about some of ... Read More
Solaris is a Unix based operating system that was developed by Sun Microsystems and after its acquisition by Oracle, it is known as Oracle Solaris. It is known for its scalability and its innovative features such as DTrace, ZFS, Time Slider etc. Solaris is a microkernel design and it is not possible to create a monolithic Solaris kernel.A diagram demonstrating the structure of the Solaris operating system is as follows −The different components in the Solaris operating system structure are −HardwareThis includes the physical components of the computer system such as monitor, keyboard, data storage etc.I/O BufferI/O devices are very ... Read More