Tag: programming languages

Questions Related to programming languages

What is the name for an application changing a readable programming language into a machine-readable language?

technology programming languages

  1. Encoder

  2. Converter

  3. Compiler

  4. Translator

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Correct Option: C

Which class is the highest superclass of Java?

technology programming languages

  1. root

  2. object

  3. stem

  4. minor

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Correct Option: B

Overloading, overriding and dynamic method binding are three types of what?

technology programming languages

  1. Inheritance

  2. Polymorphism

  3. Generalization

  4. Abstraction

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Correct Option: B

AI Explanation

To answer this question, you need to understand the concepts of overloading, overriding, and dynamic method binding.

Option A) Inheritance - This option is incorrect because overloading, overriding, and dynamic method binding are not directly related to inheritance. Inheritance is a concept that allows a class to inherit properties and behaviors from another class.

Option B) Polymorphism - This option is correct because overloading, overriding, and dynamic method binding are all types of polymorphism. Polymorphism refers to the ability of an object to take on many forms or to have multiple behaviors.

Option C) Generalization - This option is incorrect because generalization is not directly related to overloading, overriding, and dynamic method binding. Generalization is a concept in object-oriented programming that allows classes to be organized into a hierarchy based on common attributes and behaviors.

Option D) Abstraction - This option is incorrect because overloading, overriding, and dynamic method binding are not directly related to abstraction. Abstraction is a concept that focuses on hiding the implementation details and exposing only essential features of an object.

The correct answer is B) Polymorphism. This option is correct because overloading, overriding, and dynamic method binding are all types of polymorphism. They allow objects to exhibit different behaviors based on the context in which they are used.

What was the first language to bring together all the features that characterize an object-oriented programming system?

technology programming languages

  1. C++

  2. Java

  3. SmallTalk

  4. C

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Correct Option: C

Setter is a special method, that sets property value. Used for private or protected variables or for some additional validation

technology programming languages

  1. True

  2. False

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Correct Option: A

Which of the following is not a C# keyword?

technology programming languages

  1. a. if

  2. b. implements

  3. c. private

  4. d. delegates

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Correct Option: B

The statement that is used to replace multiple if statements is

technology programming languages

  1. a. The switch and case statement

  2. b. ternary operator

  3. c. nested if statement

  4. d. The #endif statement

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Correct Option: A

AI Explanation

To answer this question, you need to understand the purpose of each statement and how they are used to make decisions in programming.

Option A) The switch and case statement - This option is correct because the switch and case statement is often used to replace multiple if statements when there are multiple possible values for a variable. It allows the program to execute different blocks of code based on the value of a single variable.

Option B) The ternary operator - This option is incorrect because the ternary operator is used as a shorthand way of writing if-else statements. It is used when there are only two possible outcomes based on a condition.

Option C) The nested if statement - This option is incorrect because the nested if statement is used when there is a need to check multiple conditions within one if statement. It is used to create a hierarchy of conditions.

Option D) The #endif statement - This option is incorrect because the #endif statement is used in conditional compilation to end a block of code that is only compiled if a certain condition is met. It is not used to replace multiple if statements.

Therefore, the correct answer is A) The switch and case statement.

The following code will generate a compiler error. 

string GetAgePhrase(int age) {
    if (age > 60) return "Senior";
    if (age > 40) return "Middle-aged";
    if (age > 20) return "Adult";
    if (age > 12) return "Teen-aged";
    if (age > 4) return "Toddler";
}

Which of the following statements, inserted as the last line of the function, would solve the problem?
technology programming languages

  1. a. continue;

  2. b. break;

  3. c. return "Infant";

  4. d. return 0;

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Correct Option: C 
static void Main(string[] args) {
    try {
        Console.WriteLine("Level 1");
        try {
            Console.WriteLine("Level 2");
            goto exit;
        } finally {
            Console.WriteLine("Level 2 Finished");
        }
    } finally {
        Console.WriteLine("Level 1 Finished");
    }
    exit: ;
}

What is the output?
technology programming languages

  1. a. Leve1,Level 2,Level 1 Finished

  2. b. Level,Leve2,Leve 2 Finished

  3. c. Level 1,Level 2,Leve 2 Finished,Level 1 Finished

  4. d.Error

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Correct Option: C
Explanation:

To understand the output of this code, we need to examine the nested try-finally blocks and the use of the goto statement.

The code first prints "Level 1", then enters a try block. Within that try block, it prints "Level 2", then jumps to the "exit" label using a goto statement. This causes the finally block within the inner try block to execute, which prints "Level 2 Finished".

After the inner finally block completes, the outer finally block executes, which prints "Level 1 Finished". Thus, the final output of the code will be:

Level 1 Level 2 Level 2 Finished Level 1 Finished

Therefore, the correct answer is:

The Answer is: C. Level 1, Level 2, Level 2 Finished, Level 1 Finished

what is the default access specifier for a Top-level Class, which are not nested into other Classes?
technology programming languages

  1. a. public

  2. b. private

  3. c. protected

  4. d. internal

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Correct Option: D