Tag: programming languages

Questions Related to programming languages

int *p[10]
technology programming languages

  1. p is a pointer to a 10 element integer array

  2. p is a 10-element array of pointers to integer quantity

  3. p is a pointer to an integer quantity

  4. None of the above

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Correct Option: B

int p(char *a)
technology programming languages

  1. p is a pointer to pointer to integer

  2. p is a pointer to a function that accepts an argument which is a pointer to a character and returns an integer quantity

  3. p is a function that accepts an argument which is a pointer to a character and returns an integer quantity

  4. p is a function that accepts an argument which is a pointer to a character and returns a pointer to an integer quantity

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Correct Option: C

int (*p)[10]
technology programming languages

  1. p is a pointer to a 10 element integer array

  2. p is a pointer to an integer quantity

  3. p is a 10-element array of pointers to an integer

  4. None of the above

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Correct Option: A

What gets displayed on the screen when the following program is compiled and run. Select the one correct answer. protected class example { public static void main(String args[]) { String test = "abc"; test = test + test; System.out.println(test); } }
technology programming languages

  1. The class does not compile because the top level class cannot be protected.

  2. The program prints "abc"

  3. The program prints "abcabc"

  4. The program does not compile because statement "test = test + test" is illegal.

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Correct Option: A

Which of the following are true. Select the three correct answers.
technology programming languages

  1. A static method may be invoked before even a single instance of the class is constructed.

  2. A static method cannot access non-static methods of the class.

  3. Abstract modifier can appear before a class or a method but not before a variable.

  4. final modifier can appear before a class or a variable but not before a method.

  5. Synchronized modifier may appear before a method or a variable but not before a class.

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Correct Option: A,B,C

What is the result of evaluating the expression 14 ^ 23. Select the one correct answer.
technology programming languages

  1. 25

  2. 37

  3. 6

  4. -9

  5. 23

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Correct Option: A

Which of the following statements related to Garbage Collection are correct. Select the two correct answers.
technology programming languages

  1. It is possible for a program to free memory at a given time.

  2. Garbage Collection feature of Java ensures that the program never runs out of memory.

  3. It is possible for a program to make an object available for Garbage Collection.

  4. The finalize method of an object is invoked before garbage collection is performed on the object.

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Correct Option: C,D

Which of these are core interfaces in the collection framework. Select the one correct answer.
technology programming languages

  1. Tree

  2. Stack

  3. Queue

  4. Array

  5. LinkedList

  6. Map

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Correct Option: F

class MCZ27 { public static void main (String[] args) { char a = '\f'; // 1 char b = '\n'; // 2 char c = '\r'; // 3 char d = '\l'; // 4 char e = '\'; // 5 }} A compile-time error is generated at which line?
technology programming languages

  1. 1

  2. 2

  3. 3

  4. 4

  5. 5

  6. No errors

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Correct Option: D

class JJF3 { public static void main(String args[]) { System.out.print(Integer.toBinaryString(Byte.MAX_VALUE)+","); System.out.print(Integer.toOctalString(Byte.MAX_VALUE)+","); System.out.print(Integer.toString(Byte.MAX_VALUE)+","); System.out.print(Integer.toHexString(Byte.MAX_VALUE)); }}
technology programming languages

  1. Prints: 1111111,177,127,7f

  2. Prints: 11111111,377,256,ff

  3. Compile-time error

  4. Run-time error

  5. None of the above

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Correct Option: A