1z0 809 practice exam questions demo

1Z0-809 Practice Exam Questions Demo
Which statement is true?
A. The green.txt file content is replaced by the yellow.txt file content and the yellow.txt file
is deleted.
B. The yellow.txt file content is replaced by the green.txt file content and an exception is
thrown.
C. The file green.txt is moved to the /colors directory.
D. A FileAlreadyExistsException is thrown at runtime.
Answer: D
7. Given:
public class MainMethod {
void main() {
System.out.println("one");
}
static void main(String args) {
System.out.println("two");
}
public static void main(String[] args) {
System.out.println("three");
}
void mina(Object[] args) {
System.out.println("four");
}
}
What is printed out when the program is excuted?

1Z0-809 Practice Exam Questions Demo
B. two
C. three
D. four
Answer: C
8. Given:
public class Foo{
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public staticFootwice (T value) (return new Foo(value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?
9. Given:
Item table
• ID, INTEGER: PK
• DESCRIP, VARCHAR(100)
• PRICE, REAL
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1Z0-809 Practice Exam Questions Demo
• QUANTITY< INTEGER
And given the code fragment:
9. try {
10.Connection conn = DriveManager.getConnection(dbURL, username, password);
11. String query = “Select * FROM Item WHERE ID = 110”;
12. Statement stmt = conn.createStatement();
13. ResultSet rs = stmt.executeQuery(query);
14.while(rs.next()) {
15.System.out.println(“ID:“ + rs.getInt(“Id”));
16.System.out.println(“Description:“ + rs.getString(“Descrip”));
17.System.out.println(“Price:“ + rs.getDouble(“Price”));
18. System.out.println(Quantity:“ + rs.getInt(“Quantity”));
19.}
20. } catch (SQLException se) {
21. System.out.println(“Error”);
22. }
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists.