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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps:

Use local variable type inference, including as lambda parameters
Handle text using String and StringBuilder classes
Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting

Oracle Java SE 11 Developer Sample Questions (Q95-Q100):

NEW QUESTION # 95
Given:

What is the result?

A. Good Morning, Potter
B. Good Morning, Harry
C. Good Night, Harry
D. Good Night, Potter

Answer: D

Explanation:

NEW QUESTION # 96
Given:
/code/a/Test.java
containing:

and
/code/b/Best.java
containing:
package b;
public class Best { }
Which is the valid way to generate bytecode for all classes?

A. javac -d /code /code/a/Test
B. javac -d /code /code/a/Test.java /code/b/Best.java
C. java /code/a/Test.java
D. javac -d /code /code/a/Test.java
E. java -cp /code a.Test
F. java /code/a/Test.java /code/b/Best.java

Answer: B

NEW QUESTION # 97
Given:

What is the result?

A. Joe
null
B. null
Mary
C. Joe
Marry
D. null
null

Answer: A

Explanation:
Explanation
Graphical user interface, application Description automatically generated

NEW QUESTION # 98
Given the code fragment:

What is the result?

A. false true false
B. false true true
C. true false false
D. false false true

Answer: A

Explanation:

NEW QUESTION # 99
Given:

Which statement is equivalent to line 1?

A. double totalSalary = list.stream().map(e -> e.getSalary() * ratio).reduce (bo).ifPresent (p -> p.doubleValue());
B. double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);
C. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).reduce(starts, bo);
D. double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).sum;

Answer: B

Explanation: