Data commit

Task/Binary-strings/C-sharp/binary-strings.cs

@@ -0,0 +1,65 @@
+using System;
+
+class Program
+{
+    static void Main()
+    {
+        //string creation
+        var x = "hello world";
+
+        //# mark string for garbage collection
+        x = null;
+
+        //# string assignment with a null byte
+        x = "ab\0";
+        Console.WriteLine(x);
+        Console.WriteLine(x.Length); // 3
+
+        //# string comparison
+        if (x == "hello")
+            Console.WriteLine("equal");
+        else
+            Console.WriteLine("not equal");
+
+        if (x.CompareTo("bc") == -1)
+            Console.WriteLine("x is lexicographically less than 'bc'");
+
+        //# string cloning
+        var c = new char[3];
+        x.CopyTo(0, c, 0, 3);
+        object objecty = new string(c);
+        var y = new string(c);
+
+        Console.WriteLine(x == y);      //same as string.equals
+        Console.WriteLine(x.Equals(y)); //it overrides object.Equals
+
+        Console.WriteLine(x == objecty); //uses object.Equals, return false
+
+        //# check if empty
+        var empty = "";
+        string nullString = null;
+        var whitespace = "   ";
+        if (nullString == null && empty == string.Empty &&
+            string.IsNullOrEmpty(nullString) && string.IsNullOrEmpty(empty) &&
+            string.IsNullOrWhiteSpace(nullString) && string.IsNullOrWhiteSpace(empty) &&
+            string.IsNullOrWhiteSpace(whitespace))
+            Console.WriteLine("Strings are null, empty or whitespace");
+
+        //# append a byte
+        x = "helloworld";
+        x += (char)83;
+        Console.WriteLine(x);
+
+        //# substring
+        var slice = x.Substring(5, 5);
+        Console.WriteLine(slice);
+
+        //# replace bytes
+        var greeting = x.Replace("worldS", "");
+        Console.WriteLine(greeting);
+
+        //# join strings
+        var join = greeting + " " + slice;
+        Console.WriteLine(join);
+    }
+}