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Oracle 1Z0-819 Exam Dumps

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296

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Description

Exam Name: Java SE 11 Developer
Exam Code: 1Z0-819
Related Certification(s): Oracle Java Certification
Certification Provider: Oracle
Number of 1Z0-819 practice questions in our database: 296 

Expected 1Z0-819 Exam Topics, as suggested by Oracle :

  • Module 1: Define and use fields and methods, including instance, static and overloaded methods/ Working with Arrays and Collections
  • Module 2: Create and use subclasses and superclasses, including abstract classes/ Use local variable type inference, including as lambda parameters
  • Module 3: Understand variable scopes, apply encapsulation and make objects immutable/ Connect to and perform database SQL operations, process query results using JDBC API
  • Module 4: Handle text using String and StringBuilder classes/ Utilize polymorphism and casting to call methods, differentiate object type versus reference type
  • Module 5: Implement serialization and deserialization techniques on Java objects/ Declare and instantiate Java objects including nested class objects
  • Module 6: Create and use interfaces, identify functional interfaces/ Initialize objects and their members using instance and static initialiser statements and constructors
  • Module 7: Deploy and execute modular applications, including automatic modules/ Implement functional interfaces using lambda expressions
  • Module 8: Develop code that mitigates security threats such as denial of service/ Use Java Streams to filter, transform and process data
  • Module  9: Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting/ Sort collections and arrays using Comparator and Comparable interfaces
  • Module 10: Secure resource access including filesystems, manage policies and execute privileged code/ Develop thread-safe code, using different locking mechanisms

Description

Exam Name: Java SE 11 Developer
Exam Code: 1Z0-819
Related Certification(s): Oracle Java Certification
Certification Provider: Oracle
Number of 1Z0-819 practice questions in our database: 296 

Expected 1Z0-819 Exam Topics, as suggested by Oracle :

  • Module 1: Define and use fields and methods, including instance, static and overloaded methods/ Working with Arrays and Collections
  • Module 2: Create and use subclasses and superclasses, including abstract classes/ Use local variable type inference, including as lambda parameters
  • Module 3: Understand variable scopes, apply encapsulation and make objects immutable/ Connect to and perform database SQL operations, process query results using JDBC API
  • Module 4: Handle text using String and StringBuilder classes/ Utilize polymorphism and casting to call methods, differentiate object type versus reference type
  • Module 5: Implement serialization and deserialization techniques on Java objects/ Declare and instantiate Java objects including nested class objects
  • Module 6: Create and use interfaces, identify functional interfaces/ Initialize objects and their members using instance and static initialiser statements and constructors
  • Module 7: Deploy and execute modular applications, including automatic modules/ Implement functional interfaces using lambda expressions
  • Module 8: Develop code that mitigates security threats such as denial of service/ Use Java Streams to filter, transform and process data
  • Module  9: Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting/ Sort collections and arrays using Comparator and Comparable interfaces
  • Module 10: Secure resource access including filesystems, manage policies and execute privileged code/ Develop thread-safe code, using different locking mechanisms

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Q1. Which describes an aspect of Java that contributes to high performance?

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.

Correct Answer: C

$ 39

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