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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:

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

Oracle Java SE 11 Developer Sample Questions (Q263-Q268):

NEW QUESTION # 263
Given:

When is the readObject method called?

A. after this object is deserialized
B. after this object is serialized
C. The method is never called.
D. before this object Is serialized
E. before this object is deserialized

Answer: A

NEW QUESTION # 264
Which two are functional interfaces? (Choose two.)

A. Option D
B. Option A
C. Option C
D. Option B
E. Option E

Answer: C,E

NEW QUESTION # 265
Given:

What is the output?

A. The compilation fails due to an error in line 1.
B. I am an array
C. I am an object
D. I am an object array

Answer: C

NEW QUESTION # 266
Given:

Which two statements can be added at line 1 in Bar to successfully compile it? (Choose two.)

A. public List<Integer> foo(Set<CharSequence> m) { ... }
B. public ArrayList<Integer> foo(Set<String> m) { ... }
C. public List<Object> foo(Set<CharSequence> m) { ... }
D. public ArrayList<Number> foo(Set<CharSequence> m) { ... }
E. public List<Integer> foo(Set<String> m) { ... }
F. public List<Integer> foo(TreeSet<String> m) { ... }

Answer: D,F

NEW QUESTION # 267
Given:

You want to obtain the Filechannel object on line 1.
Which code fragment will accomplish this?
A)

B)

C)

D)

A. Option D
B. Option C
C. Option B
D. Option A

Answer: D

NEW QUESTION # 268
......

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Free PDF 2025 Oracle 1z1-819: Accurate Java SE 11 Developer Vce Exam

New 1z1-819 Test Format & 1z1-819 Test Pass4sure

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

Oracle Java SE 11 Developer Sample Questions (Q263-Q268):

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