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1Z0-815 Certification Detail Exam Code
1Z0-815
Full Exam Name
Oracle Java SE 11 Programmer I
Number of Questions
80
Practice Exams
1Z0-815 Online Practice Exam
Passing Score
63%
Time Limit
180 minutes
Recommended Training
Java SE: Programming I Ed 2 Java Programming Learning Subscription Core Java Learning Subscription Unlimited Product Learning Subscription Java SE Programming I MOOC
Syllabus Topics for Oracle 1Z0-815 Exam Topic Name Understanding Java Technology and environment Working With Java Primitive Data Types and String APIs Working with Java Arrays Creating and Using Methods Reusing Implementations Through Inheritance Handling Exceptions Creating a Simple Java Program Using Operators and Decision Constructs Describing and Using Objects and Classes Applying Encapsulation Programming Abstractly Through Interfaces Understanding Modules
Oracle 1Z0-815 Exam Questions
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10. Which two modules include APIs in the Java SE Specification? (Choose two.) Option a) java.logging b) java.desktop
c) javafx d) jdk.httpserver e) jdk.jartool
ANSWER a) java.logging d) jdk.httpserver
02. Which set of commands is necessary to create and run a custom runtime image from Java source files? Option a) java, jdeps b) javac, jlink
c) jar, jlink d) javac, jar
ANSWER c) jar, jlink
03. Which describes an aspect of Java that contributes to high performance? Option a) Java prioritizes garbage collection. b) Java has a library of built-in functions that can be used to enable pipeline burst execution. c) Java monitors and optimizes code that is frequently executed.
d) Java automatically parallelizes code execution.
ANSWER a) Java prioritizes garbage collection.
04. Given the code fragment: 10. var lst = List.of(1, 2, 3, 4); 11. lst.replaceAll(x -> x + 100); 12. System.out.println(â&#x20AC;&#x153;-Completed-â&#x20AC;?); Which action enables to print -Completed-? Option a) Replacing line 10, with List<Integer> lst = List.of(1,2,3,4); b) Replacing line 11, with lst.replaceAll(x = x + 100);
c) Replacing line 10, with var lst = Arrays.asList(1, 2, 3, 4); d) Replacing line 11, with lst.forEach(x -> x + 100);
ANSWER c) Replacing line 10, with var lst = Arrays.asList(1, 2, 3, 4);
05. What makes Java dynamic? Option
a) The Java compiler preprocesses classes to run on specific target platforms. b) At runtime, classes are loaded as needed, and new code modules can be loaded on demand.
c) The runtime can process machine language sources as well as executables from different language compilers. d) The Java compiler uses reflection to test if class methods are supported by resources of a target platform.
ANSWER b) At runtime, classes are loaded as needed, and new code modules can be loaded on demand.
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