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The Oracle 1z0-809 exam consists of 90 multiple-choice and multiple-answer questions, and candidates are given 150 minutes to complete the exam. 1z0-809 exam is designed to test a candidate's ability to write, debug, and maintain Java applications that are efficient, scalable, and secure. 1z0-809 Exam is also designed to test a candidate's ability to apply Java best practices and design patterns in real-world scenarios.

Oracle Java SE 8 Programmer II Sample Questions (Q117-Q122):

NEW QUESTION # 117
Given the code fragment:
List<Integer> codes = Arrays.asList (10, 20);
UnaryOperator<Double> uo = s -> s +10.0;
codes.replaceAll(uo);
codes.forEach(c -> System.out.println(c));
What is the result?

A. A compilation error occurs.
B. 10 20
C. A NumberFormatException is thrown at run time.
D. 20.0
30.0

Answer: D

NEW QUESTION # 118
Given:

What is the result?

A. A compilation error occurs in the Daze class.
B. Bar Hello
Foo Hello
C. Baz Hello
D. Bar Hello
Baz Hello

Answer: C

NEW QUESTION # 119
Given the code fragment:

What is the result?

A. Logged out at: 2015-01-12T21:58:00Z
B. Logged out at: 2015-01-12T21:58:19.880Z
C. A compilation error occurs at line n1.
D. Can't logout

Answer: A

NEW QUESTION # 120
Given the code fragment:

Assume that dbURL, userName, and password are valid.
Which code fragment can be inserted at line n1 to enable the code to print Connection Established?

A. con = DriverManager.getConnection (dbURL);
con.setClientInfo ("user", userName);
con.setClientInfo ("password", password);
B. Properties prop = new Properties();
prop.put ("user", userName);
prop.put ("password", password);
con = DriverManager.getConnection (dbURL, prop);
C. con = DriverManager.getConnection (userName, password, dbURL);
D. Properties prop = new Properties();
prop.put ("userid", userName);
prop.put ("password", password);
prop.put("url", dbURL);
con = DriverManager.getConnection (prop);

Answer: B

NEW QUESTION # 121
Given:
public class Foo<K, V> {
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public static <T> Foo<T, T> twice (T value) (return new Foo<T, T> (value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?

A. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100););
B. Foo<String, String> pair = Foo.<String>twice ("Hello World!");
C. Foo<?, ?> percentage = new Foo <> (97, 32););
D. Foo<String, String> grade = new Foo <> ("John", "A");

Answer: C

NEW QUESTION # 122
......

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1z0-809 Training Questions, New 1z0-809 Test Prep

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New 1z0-809 Test Prep, 1z0-809 Valid Test Papers

Oracle Java SE 8 Programmer II Sample Questions (Q117-Q122):

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