Tag: programming languages

Questions Related to programming languages

Which one of the following @function is used to display all Response document and Response to Response document of the parent document?
technology programming languages

  1. @Responses

  2. @AllChildren

  3. @AllDescendents

  4. @AllResponses

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Correct Option: C

Which option most fully describes will happen when you attempt to compile and run the following code public class MyAr{ public static void main(String argv[]) { MyAr m = new MyAr(); m.amethod(); } public void amethod(){ static int i; System.out.println(i); } }
technology programming languages

  1. Compilation and output of the value 0

  2. Compile time error because i has not been initialized

  3. Compilation and output of null

  4. Compile time error

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Correct Option: D

Which of the following will compile correctly
technology programming languages

  1. short myshort = 99S;

  2. String name = 'Excellent tutorial Mr Green';

  3. char c = 17c;

  4. int z = 015;

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Correct Option: D

Which of the following are Java key words
technology programming languages

  1. double

  2. Switch

  3. then

  4. instanceof

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Correct Option: A,D

Which of the following are Java modifiers?
technology programming languages

  1. public

  2. private

  3. friendly

  4. transient

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Correct Option: A,B,D

Why might you define a method as native?
technology programming languages

  1. to get to access hardware that Java does not know about

  2. to define a new data type such as an unsigned integer

  3. to write optimised code for performance in a language such as C/C++

  4. to overcome the limitation of the private scope of the method

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Correct Option: A,C

TreeMap class is used to implement which collection interface. Select the one correct answer
technology programming languages

  1. SortedMap

  2. Tree

  3. Set

  4. SortedSet

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Correct Option: A

What gets printed when the following program is compiled and run. Select the one correct answer. class test { public static void main(String args[]) { int i,j,k,l=0; k = l++; j = ++k; i = j++; System.out.println(i); } }
technology programming languages

  1. 0

  2. 1

  3. 2

  4. 3

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Correct Option: B

Which one does not have a ValueOf(String) method?
technology programming languages

  1. integer

  2. boolean

  3. character

  4. long

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Correct Option: C

Which one does not extend java.lang.Number?
technology programming languages

  1. integer

  2. boolean

  3. character

  4. short

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Correct Option: B,C