Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology programming languages

Given: 1. class Super { 2. private int a; 3. protected Super(int a) { this.a = a; } 4. } ... 11. class Sub extends Super { 12. public Sub(int a) { super(a); } 13. public Sub() { this.a = 5; } 14. } Which two, independently, will allow Sub to compile? (Choose two.)

  1. Change line 2 to:public int a;

  2. Change line 2 to:protected int a;

  3. Change line 13 to:public Sub() { this(5); }

  4. Change line 13 to:public Sub() { super(5); }
Reveal answer Fill a bubble to check yourself
C,D Correct answer
Full explanation
Multiple choice technology programming languages

Given: 31. // some code here 32. try { 33. // some code here 34. } catch (SomeException se) { 35. // some code here 36. } finally { 37. // some code here 38. } Under which three circumstances will the code on line 37 be executed? (Choose three.)

  1. The instance gets garbage collected.

  2. The code on line 33 throws an exception.

  3. . The code on line 35 throws an exception

  4. The code on line 31 throws an exception

  5. The code on line 33 executes successfully
Reveal answer Fill a bubble to check yourself
B,C,E Correct answer
Full explanation
Multiple choice technology programming languages

Which of the following differences between malloc and calloc are true? 1) malloc allocates number of bytes passed as argument 2) calloc allocates the product of number of elements multiplied by the size of each element, which are both passed as arguments. 3) both malloc and calloc return void* 4) both malloc and calloc initialize allocated memory to all 0

  1. 1, 2, 3, 4

  2. 1, 2, 3

  3. 1,2

  4. 1
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation