Oracle Updated 1z0-809 Exam Questions and Answers by salman

Which statement is true about java.time.Duration?

Given the content of /resourses/Message.properties:

welcome1=”Good day!”

and given the code fragment:

Properties prop = new Properties ();

FileInputStream fis = new FileInputStream (“/resources/Message.properties”);

prop.load(fis);

System.out.println(prop.getProperty(“welcome1”));

System.out.println(prop.getProperty(“welcome2”, “Test”));//line n1

System.out.println(prop.getProperty(“welcome3”));

What is the result?

Given the code fragment:

List colors = Arrays.asList(“red”, “green”, “yellow”);

Predicate test = n - > {

System.out.println(“Searching…”);

return n.contains(“red”);

};

colors.stream()

.filter(c -> c.length() >= 3)

.allMatch(test);

What is the result?

Given the code fragments:

class MyThread implements Runnable {

private static AtomicInteger count = new AtomicInteger (0);

public void run () {

int x = count.incrementAndGet();

System.out.print (x+” “);

}

}

and

Thread thread1 = new Thread(new MyThread());

Thread thread2 = new Thread(new MyThread());

Thread thread3 = new Thread(new MyThread());

Thread [] ta = {thread1, thread2, thread3};

for (int x= 0; x < 3; x++) {

ta[x].start();

}

Which statement is true?