What happens if we call get() on an empty optional?
Anonymous Quiz
39%
NullPointerException
34%
NoSuchElementException will be thrown
21%
Nothing
5%
Answer
👍7🤔4👏1
😁13🤯11🤔8👍2
❤5😁2
What types of blocks don't exist in Java?
Anonymous Quiz
10%
Static initialization block
7%
Initialization block
34%
Local block
39%
All options above are valid
10%
Answer
👍8
What does the method offer() to do? Queue interface.
Anonymous Quiz
36%
Carry the element to the end of the queue
17%
Take the element and delete it
34%
Just take the element
12%
Answer
👍3
👍4
🤔5👍3
😁3🔥2
Java задачи • Mentor
Is the finally block always executed?
☝️ Explanation:
The final block is always executed unless there is an abnormal termination of the program, either as a result of a JVM failure or calling the System.exit(0)
The final block is always executed unless there is an abnormal termination of the program, either as a result of a JVM failure or calling the System.exit(0)
👍4🤯4
What is the result of the next code? for(;;)
Anonymous Quiz
8%
This code will not be executed
74%
Infinity cycle
12%
Compile error
5%
Runtime error
👍7👏1
What is the result for the next code? public static void main(String[] args) {
String test = new String("Hello"); String test2 = new String("Hello"); System.out.println(test==test2); }
String test = new String("Hello"); String test2 = new String("Hello"); System.out.println(test==test2); }
Anonymous Quiz
6%
null
2%
Hello
69%
false
23%
true
👍1