Tag: programming languages

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Questions Related to programming languages

Multiple choice technology programming languages

Which two statements are true? (Choose two.)

  1. It is possible for more than two threads to deadlock at once.

  2. The JVM implementation guarantees that multiple threads cannot enter into a

  3. Deadlocked threads release once their sleep() method's sleep duration has expired.

  4. Deadlocking can occur only when the wait(), notify(), and notifyAll() methods are

  5. It is possible for a single-threaded application to deadlock if synchronized blocks are

  6. . If a piece of code is capable of deadlocking, you cannot eliminate the possibility of
Reveal answer Fill a bubble to check yourself
A,F Correct answer
Multiple choice technology programming languages

Given: 1. public class Blip { 2. protected int blipvert(int x) { return 0; } 3. } 4. class Vert extends Blip { 310-065 10 5. // insert code here 6. } Which five methods, inserted independently at line 5, will compile? (Choose five.)

  1. public int blipvert(int x) { return 0; }

  2. private int blipvert(int x) { return 0; }

  3. private int blipvert(long x) { return 0; }

  4. protected long blipvert(int x) { return 0; }

  5. protected int blipvert(long x) { return 0; }

  6. protected long blipvert(long x) { return 0; }
Reveal answer Fill a bubble to check yourself
A,C,E,F Correct answer
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