1Z1-819 PASS GUARANTEE & 2025 REALISTIC ORACLE EXAM JAVA SE 11 DEVELOPER ASSESSMENT

1z1-819 Pass Guarantee & 2025 Realistic Oracle Exam Java SE 11 Developer Assessment

1z1-819 Pass Guarantee & 2025 Realistic Oracle Exam Java SE 11 Developer Assessment

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Oracle Java SE 11 Developer Sample Questions (Q170-Q175):

NEW QUESTION # 170
Given:

What is the result?

  • A. 0
  • B. 6104 3
  • C. 6910 3
  • D. 10126 3

Answer: B

Explanation:


NEW QUESTION # 171
Given the code fragment:

You must make the countvariable thread safe.
Which two modifications meet your requirement? (Choose two.)

  • A. replace line 1 with private AtomicInteger count = new AtomicInteger(0);and replace line 3 with test.count.incrementAndGet();
  • B. replace line 1 with private volatile int count = 0;
  • C. replace line 3 with
    synchronized(test) {
    test.count++;
    }
  • D. replace line 3 with
    synchronized(test.count) {
    test.count++;
    }
  • E. replace line 2 with public static synchronized void main(String[] args) {

Answer: A,D

Explanation:
Explanation/Reference: https://stackoverflow.com/questions/15852123/java-thread-safe-counter/15852164


NEW QUESTION # 172
Given:

What is the result?

  • A. The compilation fails.
  • B. An exception is thrown at runtime.
  • C. 0
  • D. 1

Answer: A


NEW QUESTION # 173
Assume ds is a DataSource and the EMP table is defined appropriately.

What does executing this code fragment do?

  • A. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', 'HR')
  • B. inserts one row (101, 'SMITH', 'HR')
  • C. throws a SQLException
  • D. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', NULL)

Answer: B


NEW QUESTION # 174
Given:

What is the result?

  • A. 0
  • B. 1
  • C. 2
  • D. 3
  • E. 4

Answer: D


NEW QUESTION # 175
......

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