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programming languages Online Quiz - 344

Description: programming languages Online Quiz - 344
Number of Questions: 20
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Tags: programming languages
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1.Set s = new TreeSet(); 2.s.add("JAVA"); 3.s.add(new Integer(5)); Line 3 will give ClassCast Exception because Two different types of object are getting added.

technology programming languages

  1. True

  2. False

Show answer
Correct Option: A

In which event are the controls fully loaded?

technology programming languages

  1. Page load

  2. Page_Init

  3. Control events

  4. Page- prerender

Show answer
Correct Option: A

AI Explanation

To answer this question, you need to understand the page lifecycle in ASP.NET.

The page lifecycle in ASP.NET consists of several events that occur during the processing of a web page. These events include Page_Init, Control events, Page_Load, and Page_PreRender.

Option A) Page load - This option is correct. The Page_Load event occurs after the Page_Init event and is responsible for loading and initializing the controls on the page. This event is triggered when the page is fully loaded.

Option B) Page_Init - This option is incorrect. The Page_Init event occurs early in the page lifecycle and is used for initializing the page and its controls. At this point, the controls may not be fully loaded.

Option C) Control events - This option is incorrect. Control events occur after the Page_Init event and before the Page_Load event. These events are specific to individual controls on the page and are not related to the loading of all controls.

Option D) Page_PreRender - This option is incorrect. The Page_PreRender event occurs after the Page_Load event and is used for finalizing the page before it is rendered to the user. At this point, the controls have already been loaded.

The correct answer is option A) Page load. This option is correct because the Page_Load event is where the controls on the page are fully loaded and initialized.

What is event bubbling?

technology programming languages

  1. Parent control send events to child

  2. child control send events to parent

  3. only in child control

  4. only in Parent control

Show answer
Correct Option: B

How do we ensure view state is not tampered?
technology programming languages

  1. 'ViewStateMac' property to false

  2. 'EnableViewStateMac' property to false

  3. 'EnableViewStateMac' property to True

  4. 'ViewStateMac' property to true

Show answer
Correct Option: C

Where is View State information stored?

technology programming languages

  1. In session

  2. In HTML Hidden Fields.

  3. In application session

  4. All the above

Show answer
Correct Option: B

What is the use of "GLOBAL.ASAX" file?
technology programming languages

  1. execute ASP.NET application level events and setting application-level variables

  2. setting application-level variables.

  3. execute ASP.NET application level events.

  4. All the above

Show answer
Correct Option: A

How do we assign page specific attributes?

technology programming languages

  1. @Register directive.

  2. @Page directive.

  3. @control directive.

  4. All the above

Show answer
Correct Option: B

What is the value of variable z when the following program segment ends? int z; for(z=0; z<50; z++) {}

technology programming languages

  1. 51

  2. 49

  3. 0

  4. 50

Show answer
Correct Option: D

Which of the following operators cannot be overloaded?

technology programming languages

  1. sizeof

  2. ::

  3. :?

  4. All the Above

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Correct Option: D

The vtable entry for a pure virtual function in C++ is

technology programming languages

  1. zero

  2. NULL

  3. one

  4. No Entry in vtable

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Correct Option: B

For the class exforsys defined as below: class exforsys() { }; int main() { exforsys a; } Which of the following is TRUE?

technology programming languages

  1. No default constructor is provided by the compiler

  2. The compiler provides the default constructor

  3. The compiler generates error

  4. None of the Above

Show answer
Correct Option: B
Explanation:

In the given code, a class named "exforsys" is defined. It does not have any member variables or functions.

Now, let's go through each option and determine which one is true:

A. No default constructor is provided by the compiler: This option is incorrect. By default, if no constructor is defined in a class, the compiler provides a default constructor. So, this option is false.

B. The compiler provides the default constructor: This option is correct. When no constructor is defined in a class, the compiler automatically generates a default constructor. So, this option is true.

C. The compiler generates an error: This option is incorrect. Since the class does not have any member variables or functions, there is no reason for the compiler to generate an error. So, this option is false.

D. None of the above: This option is incorrect. As explained earlier, the correct answer is option B. So, this option is false.

Therefore, the correct answer is:

B. The compiler provides the default constructor.

The friend function of a class in C++ can access

technology programming languages

  1. Private members of the class

  2. protected members of the class

  3. Both A and B

  4. None of the Above

Show answer
Correct Option: C

Which programming language was invented by Dennis Ritchie in 1972?

technology programming languages

  1. C++

  2. C

  3. JAVA

  4. COBOL

Show answer
Correct Option: A

Which was the first object oriented programming language?
technology programming languages

  1. JAVA

  2. C++

  3. C

  4. SIMULA

Show answer
Correct Option: D

Which programming language resembles its name to coffee?

technology programming languages

  1. JAVA

  2. SIMULA

  3. C++

  4. B

Show answer
Correct Option: A

JAVA promised which one of these?

technology programming languages

  1. Write Once, Run Anywhere

  2. Read Once, Write Anywhere

  3. Read Once, Run Anywhere

  4. Write Twice, Run Once

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Correct Option: A

Which programming language was invented by Dennis Ritchie in 1972?

technology programming languages

  1. C++

  2. C

  3. JAVA

  4. COBOL

Show answer
Correct Option: B

C++ programming language was invented by _______.

technology programming languages

  1. Dennis Ritchie

  2. James Gosling

  3. Bjarne Stroustrup

  4. Ken Thompson

Show answer
Correct Option: C

int ThatsMyFunction() { return 5; } void main() { printf("%u",ThatsMyFunction); }

technology programming languages

  1. Compilation Error

  2. Some Unknown Random Number

  3. 5

  4. I Dont Know

Show answer
Correct Option: B

void main() { int i; char *item; for(i=0;i<512;i++,item++) printf("%c",item); }

technology programming languages

  1. ASCII Table - twice

  2. Segmentation fault

  3. I hate this Quiz and I dont know it

  4. Compilation Error

Show answer
Correct Option: A
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