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1z1-809 Valid Test Simulator & Reliable 1z1-809 Exam Guide

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1z1-809 Valid Test Simulator & Reliable 1z1-809 Exam Guide

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Oracle Java SE 8 Programmer II Sample Questions (Q82-Q87):NEW QUESTION # 82
Given:

Which two classes use the shape class correctly?

  • A. Option D
  • B. Option F
  • C. Option C
  • D. Option E
  • E. Option B
  • F. Option A
Answer: D,E
Explanation:
When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class (E). However, if it does not, then the subclass must also be declared abstract (B). Note: An abstract class is a class that is declared abstract--it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed.

NEW QUESTION # 83
Given the code fragment:
ZonedDateTime depart = ZonedDateTime.of(2015, 1, 15, 3, 0, 0, 0, ZoneID.of("UTC-7"));
ZonedDateTime arrive = ZonedDateTime.of(2015, 1, 15, 9, 0, 0, 0, ZoneID.of("UTC-5"));
long hrs = ChronoUnit.HOURS.between(depart, arrive); //line n1
System.out.println("Travel time is" + hrs + "hours");
What is the result?
  • A. Travel time is 4 hours
  • B. An exception is thrown at line n1.
  • C. Travel time is 6 hours
  • D. Travel time is 8 hours
Answer: A

NEW QUESTION # 84
Given the structure of the STUDENT table:
Student (id INTEGER, name VARCHAR)
Given:
public class Test {
static Connection newConnection =null;
public static Connection get DBConnection () throws SQLException {
try (Connection con = DriveManager.getConnection(URL, username,
password)) {
newConnection = con;
}
return newConnection;
}
public static void main (String [] args) throws SQLException {
get DBConnection ();
Statement st = newConnection.createStatement();
st.executeUpdate("INSERT INTO student VALUES (102, 'Kelvin')");
}
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the URL, userName, and passWord exists.
The SQL query is valid.
What is the result?
  • A. The program executes successfully and the STUDENT table is updated with one record.
  • B. A SQLExceptionis thrown as runtime.
  • C. A NullPointerExceptionis thrown as runtime.
  • D. The program executes successfully and the STUDENT table is NOT updated with any record.
Answer: C

NEW QUESTION # 85
Given the code fragment:

Which three lines fail to compile?
  • A. line 9
  • B. line 8
  • C. line 7
  • D. line 10
  • E. line 11
  • F. line 12
Answer: C,D,F

NEW QUESTION # 86
Given:
public interface Moveable<Integer> {
public default void walk (Integer distance) {System.out.println("Walking");) public void run(Integer distance);
}
Which statement is true?
  • A. Moveable can be used as below:Moveable<Integer> animal = n - > System.out.println("Running" + n); animal.run(100);animal.walk(20);
  • B. Moveable can be used as below:Moveable<Integer> animal = n - > n + 10;animal.run(100);animal.walk (20);
  • C. Moveable can be used as below:Moveable animal = (Integer n) - > System.out.println(n);animal.run (100);Moveable.walk(20);
  • D. Movable cannot be used in a lambda expression.
Answer: A

NEW QUESTION # 87
......
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