Tag: programming languages

Questions Related to programming languages

__________ will be automatically invoked when an object is created.
technology programming languages

  1. method

  2. garbage collection

  3. finalizer

  4. Constructor

  5. none of the above

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Correct Option: D

In order for a source code file, containing the public class Test, to successfully compile, which of the following must be true?
technology programming languages

  1. It must have a package statement

  2. It must be named Test.java

  3. It must import java.lang

  4. It must declare a public class named Test

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Correct Option: B

_____________ is the mechanism that servlets use to have a client hold a small amount of state information associated with the user.
technology programming languages

  1. sessions

  2. HttpRequest

  3. HttpResponse

  4. Java Beans

  5. Cookies

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Correct Option: E

If you want to modify the servlet, The webserver need to be shutdown.
technology programming languages

  1. True

  2. False

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Correct Option: B

Casting the return value from malloc function is necessary.
technology programming languages

  1. True

  2. False

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Correct Option: B

Which of the following functions is not present in ANSI standard?
technology programming languages

  1. getchar();

  2. getche();

  3. ungetc();

  4. getch();

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Correct Option: B,D

What is the scope of memory allocated with malloc function?
technology programming languages

  1. Local to the file in which its allocated.

  2. Local to the function in which its allocated.

  3. Local to the block in which its allocated.

  4. Global

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Correct Option: D

After we free an allocated memory block using free(), the pointer will become:
technology programming languages

  1. null pointer

  2. wild pointer

  3. Dangling pointer

  4. None of the above

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Correct Option: C

What is the following declaration for? int (*a)[10];
technology programming languages

  1. Pointer to an array of 10 integers.

  2. A pointer to function returning an array of 10 integers.

  3. Array of 10 function pointers returning int

  4. Array of 10 integer pointers.

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Correct Option: A

Consider the following declarations: int a[10]; int *p=a; Which among the following is portable way to print value of pointer p?
technology programming languages

  1. printf("%d\n",p);

  2. printf("%u\n",p);

  3. printf("%lu",p);

  4. printf("%p\n",(void*)p);

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Correct Option: D