Description : Write code to use threading and the lock keyword.
Last Answer : using System; using System.Threading; namespace ConsoleApplication4 { class Class1 { [STAThread] static void Main(string[] args) { ThreadClass tc1 = new ThreadClass(1); ThreadClass tc2 = new ThreadClass( ... Console.WriteLine(threadNumber + " working"); Thread.Sleep(1000); } } } } }
Description : Write code to define and use your own custom attribute.
Last Answer : (From MSDN) // cs_attributes_retr.cs using System; [AttributeUsage(AttributeTargets.Class|AttributeTargets.Struct, AllowMultiple=true)] public class Author : Attribute { public Author(string name) { this.name ... double version; string name; public string GetName() { return name; } }
Description : Write some code to declare and use properties.
Last Answer : // instance public string InstancePr { get { return a; } set { a = value; } } //read-only static public static int ClassPr { get { return b; } }
Description : Write some code to implement an indexer.
Last Answer : using System; namespace Console1 { class Class1 { static void Main(string[] args) { MyIndexableClass m = new MyIndexableClass(); Console.WriteLine(m[0]); Console.WriteLine(m[1]); Console.WriteLine(m[2]); Console. ... get { return myData[i]; } set { myData[i] = value; } } } }
Description : Write some code that uses an ArrayList.
Last Answer : ArrayList list = new ArrayList(); list.Add("Hello"); list.Add("World");
Description : Write some code to implement a jagged array.
Last Answer : // Declare the array of two elements: int[][] myArray = new int[2][]; // Initialize the elements: myArray[0] = new int[5] {1,3,5,7,9}; myArray[1] = new int[4] {2,4,6,8};
Description : Write some code to implement a multidimensional array.
Last Answer : int[,] b = {{0, 1}, {2, 3}, {4, 5}, {6, 7}, {8, 9}};
Description : Write some code for a custom collection class.
Last Answer : using System; using System.Collections; public class Items : IEnumerable { private string[] contents; public Items(string[] contents) { this.contents = contents; } public IEnumerator GetEnumerator() { ... (string item in items) { Console.WriteLine(item); } Console.ReadLine(); } }
Description : Write some code that declares an array on ints, assigns the values: 0,1,2,5,7,8,11 to that array and use a foreach to do something with those values.
Last Answer : int x = 0, y = 0; int[] arr = new int [] {0,1,2}; foreach (int i in arr) { if (i%2 == 0) x++; else y++; }
Description : Write some code for do… while.
Last Answer : int x; int y = 0; do { x = y++; Console.WriteLine(x); } while(y < 5);
Description : Write some code for a while loop.
Last Answer : int n = 1; while (n < 6) { Console.WriteLine("Current value of n is {0}", n); n++; }
Description : Write some code for a for loop
Last Answer : for (int i = 1; i <= 5; i++) Console.WriteLine(i);
Description : Write some if… else if… code.
Last Answer : int n=4; if (n==1) Console.WriteLine("n=1"); else if (n==2) Console.WriteLine("n=2"); else if (n==3) Console.WriteLine("n=3"); else Console.WriteLine("n>3");
Description : Write some try…catch…finally code.
Last Answer : // try-catch-finally using System; public class TCFClass { public static void Main () { try { throw new NullReferenceException(); } catch(NullReferenceException e) { Console.WriteLine("{0} exception 1 ... ("exception 2."); } finally { Console.WriteLine("finally block."); } } }
Description : Write some code to overload an operator.
Last Answer : class TempleCompare { public int templeCompareID; public int templeValue; public static bool operator == (TempleCompare x, TempleCompare y) { return (x.templeValue == y.templeValue); } ... templeValue); } public override int GetHashCode() { return templeCompareID; } }
Description : Write code for a case statement.
Last Answer : switch (n) { case 1: x=1; break; case 2: x=2; break; default: goto case 1; }
Description : Write some code to box and unbox a value type.
Last Answer : // Boxing int i = 4; object o = i; // Unboxing i = (int) o;
Description : Write some code to use a delegate.
Last Answer : Member function with a parameter using System; namespace Console1 { class Class1 { delegate void myDelegate(int parameter1); static void Main(string[] args) { MyClass myInstance = new ... void AMethod(int param1) { Console.WriteLine(param1); } } }
Description : Write code to show how a method can accept a varying number of parameters.
Last Answer : using System; namespace Console1 { class Class1 { static void Main(string[] args) { ParamsMethod(1,"example"); ParamsMethod(1,2,3,4); Console.ReadLine(); } static void ... o in list) { Console.WriteLine(o.ToString()); } } } }
Description : Write some code using interfaces, virtual methods, and an abstract class.
Last Answer : using System; public interface Iexample1 { int MyMethod1(); } public interface Iexample2 { int MyMethod2(); } public abstract class ABSExample : Iexample1, Iexample2 { public ABSExample( ... override void VIRTMethod2() { System.Console.WriteLine("VIRTMethod2 has been overridden"); } }
Description : Briefly highlight the differences between imperative and declarative security as they pertain to code access security.
Last Answer : Imperative security is implemented by calling methods of Permission objects in code at run time. Declarative security is configured by attaching attributes representing permissions to classes ... request assembly-wide permissions using the Assembly (assembly) directive with declarative security.
Description : Describe how to use code to retrieve resources at run time.
Last Answer : You must first create an instance of the ResourceManager class that is associated with the assembly that contains the desired resource. You can then use the GetString method to retrieve string resources or the GetObject method to retrieve object resources.
Description : Explain how to convert data in legacy code page formats to the Unicode format.
Last Answer : You can use the Encoding.Convert method to convert data between encoding types. This method requires instances of both encoding types and an array of bytes that represents the data to be converted. ... GetBytes method and can convert an array of bytes back to chars with the Encoding.GetChars method.
Description : Describe how to retrieve the ASCII key code from a keystroke. How would you retrieve key combinations for non-ASCII keys?
Last Answer : Keystrokes can be intercepted by handling the KeyPress and KeyDown events. Both of these events relay information to their handling methods in the form of their EventArgs. The KeyPressEventArgs, ... you would handle the KeyDown event and use the properties exposed by the KeyEventArgs instance.
Description : What is unsafe code?
Last Answer : Unsafe code bypasses type safety and memory management.
Description : Why is the virtual keyword used in code?
Last Answer : The Virtual keyword is used in code to define methods and the properties that can be overridden in derived classes.
Description : Define what is a code group?
Last Answer : A code group is a set of assemblies that share a security context.
Description : How would you read and write using the console?
Last Answer : Console.Write, Console.WriteLine, Console.Readline
Description : Write a hello world console application.
Last Answer : using System; namespace Console1 { class Class1 { [STAThread] // No longer needed static void Main(string[] args) { Console.WriteLine("Hello world"); } } }
Description : C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write?
Last Answer : Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there’s no implementation in it.
Description : For 3D modeling of automobile body styling, which of the following is a preferredtechnique a.Constructive Solid Geometry b.Pure Primitive Instancing c.Boundary Representation d.Spatial Occupancy Enumeration
Last Answer : c.Boundary Representation
Description : For 3D modeling of automobile body styling, which of the following is a preferredtechnique? a.Constructive Solid Geometry b.Pure Primitive Instancing c.Boundary Representation d.Spatial Occupancy Enumeration
Description : From the following, which method is also called as the Building Block Approach? a.Cellular Decomposition b.Spatial Occupancy Enumeration c.Generalized Sweeps d.Constructive Solid Geometry
Last Answer : d.Constructive Solid Geometry
Description : What are the advantages and disadvantages of de-factor system of enumeration?
Last Answer : This method has the following advantages: It is not time consuming because the entire enumeration work is done within one night. 2. This is real enumeration because the households are actually present in their places of residence
Description : What is Enumeration?
Last Answer : Enumeration improves code readability. It also helps in avoiding typing mistake
Description : During the second week of the months of February and August of each year, an enumeration Is made daily of the number of a) Ordinary UR article of letter mail given out for deliver y by all ... articles of the letter mail, and unregistered parcel given out for deliver y by all post offices .
Last Answer : d) Ordinary un registered articles of the letter mail, and unregistered parcel given out for deliver y by all post offices
Description : Mark correct option related to preservation period a) All records of mail department except due mail & sorting list 1 year b) Book of post marks(MS 18) & Postman book (MS-27) 1 ½ year c) Enumeration returns (MS-6) 2 years d) All monthly statistical registers 3 years e) All of the above
Last Answer : e) All of the above
Description : Mark the correct option a) Half yearly enumeration returns will be submitted during the second week of the months of February and August of each ear 8th to 14th both day inclusive. b) An enumeration ... letter mail and UR parcel given out for delivery to Postman and window. c) All the above
Last Answer : c) All the above
Description : Distinguish a complete enumeration from sample survey
Last Answer : Ans: Complete enumeration is the study of whole population in specified time while sample survey is the statistical study of the part of population.
Description : What tool can be used to perform SNMP enumeration? a. DNSlookup b. Whois c. Nslookup d. IP Network Browser
Last Answer : d. IP Network Browser
Description : .................... is the popular method for solving an assignment problem. a. Hungarian Method b. Enumeration Method c. Simplex Method d. None of the above
Last Answer : a. Hungarian Method
Description : Which of the following methods is used to solve an assignment problem: a. Enumeration Method b. Hungarian Method c. Simplex Method d. All of the above
Last Answer : d. All of the above
Description : What si the difference between interface and abstractclass Select Answer: 1. interface contain only methods 2. we can't declare a variable for interface 3. interface contain only events 4. None 5. All
Last Answer : Ans : 2 The only Difference between Interface and Abstract class is we can declare a variable in abstract class but we can't declare in variable interface
Description : What is the lifespan for items stored in ViewState? Select Answer: 1. Item stored in ViewState exist for the life of the current page 2. Item stored in ViewState exist for the life ... of the current Applicaiton 4. Item stored in ViewState exist for the life of the current configuration
Last Answer : 1. Item stored in ViewState exist for the life of the current page AS any web application works on request and response basis ,so on every post backs, The data in control gets lost. To retain page ... control with data. The life cycle of the view state exist for life of current running page only.
Description : Which one of the following tools is used to view the metadata information contained in a .NET assembly? Select Answer: 1. al.exe 2. ilasm.exe 3. vbx.exe 4. csc.exe 5. ildasm.exe
Last Answer : 5. ildasm.exe
Description : How would you ensure that all relevant registry entries were removed in the event that installation of your application failed?
Last Answer : You can ensure that registry entries are removed, as well as perform any other “clean-up” tasks, by creating an Installer class and writing the appropriate code in the Rollback event handler. Then create a new Custom Action and set the InstallerClass, and EntryPoint properties to appropriate values.
Description : Describe a general strategy for creating a setup project that terminates installation if a specific file is not already installed on the target machine.
Last Answer : First, create a file search to search the file system for the specific file. Then create a launch condition to evaluate the results of the search. You can connect the launch condition to ... in the search's Property property in the expression specified by the launch condition's Condition property.
Description : What is the purpose of a bootstrapper application? When do you not need to create one?
Last Answer : A bootstrapper application automatically detects if Windows Installer is installed on the target machine. If Windows Installer is not present, it installs Windows Installer before proceeding with the rest ... Installer 1.5 already installed) or have had Microsoft Installer 1.5 installed previously.
Description : What is a native image? How do you create one?
Last Answer : A native image is a precompiled version of a .NET assembly. You can create a native image of your application by using the Ngen.exe utility.
Description : Describe XCOPY deployment. Under what conditions is it useful? When can it not be used?
Last Answer : XCOPY deployment is a simple method of deployment where the DOS command XCOPY is used to copy the application directory and any subdirectories to the target machine. You can use XCOPY ... an application requires a more complex deployment or references shared assemblies, you cannot use XCOPY.