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Free Oracle 1Z0-829 Questions

1. Page: 1/10
  Total 50 Questions
Question No 1

Given the code fragments:

Which is true?

Choose the Choices:

The program prints t1 : 1: t2 : 1: t1 : t2 : 2 : in random order.

The program prints t1 : 1 : t2: 1 : t1 : 2 : t2: 2:

The program prints t1 : 1: t2 : 1: t1 : 1 : t2 : 1 : indefinitely

The program prints an exception Answer: B Explanation: The code creates two threads, t1 and t2, and starts them. The threads will print their names and the value of the Atomic Integer object, x, which is initially set to 1. The threads will then increment the value of x and print their names and the new value of x. Since the threads are started at the same time, the output will be in random order. However, the final output will always be t1 : 1 : t2: 1 : t1 : 2 : t2: 2: Reference: AtomicInteger (Java SE 17 & JDK 17) - Oracle

B
Question No 2

Which statement is true?

Choose the Choices:

IllegalStateException is thrown if a thread in waiting state is moved back to runnable.

thread in waiting state consumes CPU cycles.

A thread in waiting state must handle InterrupedException.

After the timed wait expires, the waited thread moves to the terminated state.

C
Question No 3

Given the code fragment:

Which code fragment invokes all callable objects in the workers set?

A)

B)

C)

D)

Choose the Choices:

Option A

Option B

Option C

Option D

C
Question No 4

Given the code fragment:

What is the result?

Choose the Choices:

81111

8109

777

71010

888

7107

C
Question No 5

Given the code fragment:

Choose the Choices:

True:false:true:true

True:true:false:false

True:false:true:false

True:false:false:false

D
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