Tag: programming languages

Questions Related to programming languages

5) Assume that in the current directory test.txt file is already exist. What will happen when you execute the following code? import java.io.*; class Test { public static void main(String args[]) { try { File file = new File("test.txt"); file.createNewFile(); } catch (IOException ex) { ex.printStackTrace(); } } }
technology programming languages

  1. text.txt will be created and overwrite the old file

  2. file will not be created

  3. exception will be thrown

  4. none of the above

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Correct Option: C

6) Select all the incorrect options:
technology programming languages

  1. Since enums are comparable to traditional classes, they may not be arguments in switch statements.

  2. Enums may not extend another class/ enum.

  3. Enums inherit the java.lang.Object class.

  4. Enums may be extended by another Enum.

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Correct Option: A,D

7) How will you declare a timer variable that will be accessed by multiple threads very frequently?
technology programming languages

  1. Declare the variable as volatile.

  2. not possible

  3. By java.util.*;

  4. By final keyword

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Correct Option: A

8) How will you remove duplicate element from a List?
technology programming languages

  1. Add the List elements to Set

  2. List doesnt allow that

  3. using remove()

  4. none of these

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Correct Option: A

9) Abstract class can be initiated directly ?
technology programming languages

  1. yes

  2. No

  3. sometimes only

  4. none of these

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Correct Option: B

10) Does a class inherit the constructors of its superclass?
technology programming languages

  1. Using interface

  2. Class should be declared as private

  3. yes

  4. A class does not inherit constructors from any of its superclasses.

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Correct Option: D

Which Feature is introduced in .net 3.5
technology programming languages

  1. WCF

  2. WWF

  3. LINQ

  4. WPF

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Correct Option: C

Hibernate is usually introduced in
technology programming languages

  1. ASP.NET

  2. JAVA

  3. Visual C++

  4. COBOL

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Correct Option: B

Which tool is used to build .net 1.1 solutions from command line
technology programming languages

  1. MSBuild

  2. NAnt

  3. Ant

  4. Not Possible to build solutions from command line

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Correct Option: B

Which is not true for NAnt
technology programming languages

  1. It is used to build .Net Solutions

  2. Its Name is derived from "Not Ant"

  3. Its used to build Java Project

  4. All are correct

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Correct Option: C