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Oracle Java SE 8 Programmer II Sample Questions (Q67-Q72):

NEW QUESTION # 67
Given:

And given the code fragment:

What is the result?

A. Compilation fails at line n1.
B. Compilation fails at line n2.
C. 0:20
D. 10:20

Answer: B

NEW QUESTION # 68
Given the code fragment:

Which three code fragments can be independently inserted at line n1 to enable the code to print one?

A. byte x = 1;
B. short x = 1;
C. string x = "1";
D. long x = 1;
E. Integer x = new Integer ("1") ;
F. double x = 1;

Answer: A,B,E

NEW QUESTION # 69
Given the code fragment:

What is the result?

A. 4000 : 2000
B. 1000 : 2000
C. 1000 : 4000
D. 4000 : 1000

Answer: D

NEW QUESTION # 70
Given the code fragments:
class Caller implements Callable<String> {
String str;
public Caller (String s) {this.str=s;}
public String call()throws Exception { return str.concat ("Caller");}
}
class Runner implements Runnable {
String str;
public Runner (String s) {this.str=s;}
public void run () { System.out.println (str.concat ("Runner"));}
}
and
public static void main (String[] args) InterruptedException, ExecutionException
{
ExecutorService es = Executors.newFixedThreadPool(2);
Future f1 = es.submit (new Caller ("Call"));
Future f2 = es.submit (new Runner ("Run"));
String str1 = (String) f1.get();
String str2 = (String) f2.get(); //line n1
System.out.println(str1+ ":" + str2);
}
What is the result?

A. A compilation error occurs at line n1.
B. The program terminates after printing:
Run Runner
Call Caller : Run
C. An Execution is thrown at run time.
D. The program prints:
Run Runner
Call Caller : null
And the program does not terminate.

Answer: D

NEW QUESTION # 71
Given:

and the code fragment:

What is the result?

A. A compilation error occurs at line n1.
B. A compilation error occurs because the try block is declared without a catch or finally block.
C. 0
D. An exception is thrown at line n2.

Answer: C

NEW QUESTION # 72
......

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