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Oracle 1z0-819 Dumps PDF
Java SE 11 Developer- 296 Questions & Answers
- Update Date : July 16, 2026
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Question 1
Given: This code results in a compilation error.Which code should be inserted on line 1 for a successful compilation?
A. Consumer consumer = msg -> { return System.out.print(msg); };B. Consumer consumer = var arg > {System.out.print(arg);};
C. Consumer consumer = (String args) > System.out.print(args);
D. Consumer consumer = System.out::print;
Question 2
Which set of commands is necessary to create and run a custom runtime image from Java source files?
A. java, jdepsB. javac, jlink
C. jar, jlink
D. javac, jar
Question 3
Given: Which three actions implement Java SE security guidelines? (Choose three.)
A. Change line 7 to return names.clone();.B. Change line 4 to this.names = names.clone();.
C. Change the getNames() method name to get$Names().
D. Change line 6 to public synchronized String[] getNames() {.
E. Change line 2 to private final String[] names;.
F. Change line 3 to private Secret(String[] names) {.
G. Change line 2 to protected volatile String[] names;.
Question 4
Analyze the code: Which two options can you insert inside println method to produce Global:namescope?(Choose two.)
A. Test.prefix+Test.nameB. new Test().prefix+new Test().name
C. Test.prefix+Test.getName()
D. Test.getName+prefix
E. prefix+Test.name
F. prefix+name
Question 5
Which statement about a functional interface is true?
A. It must be defined with the public access modifier.B. It must be annotated with @FunctionalInterface.
C. It is declared with a single abstract method.
D. It is declared with a single default method.
E. It cannot have any private methods and static methods.