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InterviewTest/Program.cs

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+using InterviewTest;
+using System.Collections.Generic;
+using System.Data;
+
+
+
+
+//--------------------------------------------------
+//Question #1
+//--------------------------------------------------
+
+//Here we have a custom Data class that takes 2 parameters.  We instantiate an object
+//and then pass in a SQL command to retrieve all employees from our table.
+Data myData = new Data();
+DataSet ds = myData.GetDataset("SELECT * FROM tblEmployee", false);
+
+//Besides the following code, what is another way that you can determine if the
+//resulting dataset contains any rows
+if (ds != null)
+{
+if (ds.Tables.Count > 0)
+{
+if (ds.Tables[0].Rows.Count > 0)
+{
+Console.WriteLine("We have data!!");
+}
+else
+{
+Console.WriteLine("No data returned");
+}
+}
+}
+Console.ReadLine();
+
+
+
+
+
+
+//Answer to question #1
+//One solution would be to write an extension method to extend the funtionality of the DataSet object (see the extension method in the Data class)
+
+
+
+
+
+
+
+
+//--------------------------------------------------
+//Question #2
+//--------------------------------------------------
+
+//What will be written out to the console?
+string Value = "Microsoft";
+var result = Value.Any(x => char.IsUpper(x));
+
+Console.WriteLine(result);
+Console.ReadLine();
+
+
+
+
+//Answer to question #2
+//The output would be TRUE since the .Any() method returns a boolean value
+
+
+
+
+
+
+//--------------------------------------------------
+//Question #3
+//--------------------------------------------------
+
+//We attempt to connect to a SQL server instance that is on our local network, however the following error messsage is returned
+//
+//      "The certificate chain was issued by an authority that is not trusted"
+//
+//What can we add to the connection string that will allow us to successfully connect to the server?
+
+string connString = "Server=192.168.1.100;Database=PROMS;User Id=PromsUser;Password=S3cur3P@ssw0rd;";
+
+
+
+
+//Answer to question #3
+//You would add "TrustServerCertificate=true" to the end of the connection string
+
+
+
+
+
+
+
+//--------------------------------------------------
+//Question #4
+//--------------------------------------------------
+
+//What will be the output that is written to the console?
+static void Main(string[] args)
+{
+int num = 2;
+myFunc(ref num);
+Console.WriteLine(num);
+Console.ReadLine();
+}
+static void myFunc(ref int num)
+{
+num = num * num * num;
+}
+
+
+
+
+//Answer to question #4
+//The output would be 8
+
+
+
+
+
+
+//--------------------------------------------------
+//Question #5
+//--------------------------------------------------
+
+//What will be the output that is written to the console?
+public class emp
+{
+    public string name;
+    public string address;
+    public void display()
+    {
+        Console.WriteLine("{0} is in city {1}", name, address);
+    }
+}
+public class MyProgram
+{
+    public static void GetName()
+    {
+        emp obj = new emp();
+        obj.name = "Sam";
+        obj.address = "Pittsburgh";
+        Console.ReadLine();
+    }
+}
+
+
+
+
+
+//Answer to question #5
+//Nothing would be written to the console since the Display() method is never called
+
+
+
+
+
+
+////--------------------------------------------------
+////Question #6
+////--------------------------------------------------
+
+//What would the output be of the following code block?
+Test obj = new();
+Test.first();
+obj.second(10);
+
+Console.ReadLine();
+
+public class Test
+{
+    public static void first()
+    {
+        Console.WriteLine("first method");
+    }
+    public void second()
+    {
+        first();
+        Console.WriteLine("second method");
+    }
+    public void second(int i)
+    {
+        Console.WriteLine(i);
+        second();
+    }
+}
+
+
+
+
+
+
+
+
+//Answer to question #6
+//  first method
+//  10
+//  first method
+//  second method