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Oracle Java SE 8 Programmer II Sample Questions (Q123-Q128):

NEW QUESTION # 123
Given:
IntStream stream = IntStream.of (1,2,3);
IntFunction<Integer> inFu= x -> y -> x*y; //line n1
IntStream newStream = stream.map(inFu.apply(10)); //line n2
newStream.forEach(System.output::print);
Which modification enables the code fragment to compile?

A. Replace line n2with:
IntStream newStream = stream.map(inFu.applyAsInt (10));
B. Replace line n1with:
IntFunction<IntUnaryOperator> inFu = x -> y -> x*y;
C. Replace line n1with:
BiFunction<IntUnaryOperator> inFu = x -> y -> x*y;
D. Replace line n1with:
IntFunction<UnaryOperator> inFu = x -> y -> x*y;

Answer: B

NEW QUESTION # 124
Given:

and

Which interface from the java.util.function package should you use to refactor the class Txt?

A. Predicate
B. Function
C. Supplier
D. Consumer

Answer: C

NEW QUESTION # 125
Given the structure of the Student table:
Student (id INTEGER, name VARCHAR)
Given the records from the STUDENT table:

Given the code fragment:

Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists.
What is the result?

A. The program prints Status: true and two records are deleted from the Student table.
B. The program prints Status: false but the records from the Student table are not deleted.
C. The program prints Status: false and two records are deleted from the Student table.
D. A SQLException is thrown at runtime.

Answer: C

NEW QUESTION # 126
Given the code fragment:

and the information:
* The required database driver is configured in the classpath.
* The appropriate database is accessible with the dbURL, username, and passWord exists.
What is the result?

A. The program prints Connection Established.
B. A ClassNotFoundException is thrown at runtime.
C. The program prints nothing.
D. A SQLException is thrown at runtime.

Answer: A

NEW QUESTION # 127
Given that course.txt is accessible and contains:
Course : : Java
and given the code fragment:
public static void main (String[ ] args) {
int i;
char c;
try (FileInputStream fis = new FileInputStream ("course.txt");
InputStreamReader isr = new InputStreamReader(fis);) {
while (isr.ready()) { //line n1
isr.skip(2);
i = isr.read ();
c = (char) i;
System.out.print(c);
}
} catch (Exception e) {
e.printStackTrace();
}
}
What is the result?

A. ueJa
B. A compilation error occurs at line n1.
C. ur :: va
D. The program prints nothing.

Answer: C

NEW QUESTION # 128
......

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