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Oracle 1Z0-819 시험요강:

주제소개
주제 1
  • Deploy and execute modular applications, including automatic modules
  • Implement functional interfaces using lambda expressions
주제 2
  • Implement serialization and deserialization techniques on Java objects
  • Declare and instantiate Java objects including nested class objects
주제 3
  • Understand variable scopes, apply encapsulation and make objects immutable
  • Connect to and perform database SQL operations, process query results using JDBC API
주제 4
  • Define and use fields and methods, including instance, static and overloaded methods
  • Working with Arrays and Collections
주제 5
  • Handle text using String and StringBuilder classes
  • Utilize polymorphism and casting to call methods, differentiate object type versus reference type
주제 6
  • Create and use interfaces, identify functional interfaces
  • Initialize objects and their members using instance and static initialiser statements and constructors

>> Oracle 1Z0-819덤프최신문제 <<

1Z0-819덤프최신문제 100％시험패스 인증공부

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최신 Oracle Java SE 1Z0-819 무료샘플문제 (Q195-Q200):

질문 # 195
Given:
1z0-819-435913081496a818104172722c538f0b.jpg
What is the result?

  • A. The compilation fails due to an error in line 1.
  • B. p1
  • C. null
  • D. Joe Bloggs

정답：A

설명：
1z0-819-4cc1ecdf19788aafdbbb962decdc89b9.jpg


질문 # 196
Given these two classes:
1z0-819-b59135b826fa092787141d498555bf60.jpg
1z0-819-4b8aa72cad44d24aeaafd4c0c6097c10.jpg
And given this fragment:
1z0-819-833205a72be3bc13ac08d928c5e9bd2a.jpg
Which describes the fragment?

  • A. It is subject to livelock.
  • B. The code does not compile.
  • C. It throws IllegalMonitorStateException.
  • D. It is subject to deadlock.

정답：B


질문 # 197
Which two statements correctly describe capabilities of interfaces and abstract classes? (Choose two.)

  • A. Interfaces cannot have methods with bodies but abstract classes can.
  • B. Both interfaces and abstract classes can have final methods.
  • C. Interfaces cannot have static methods but abstract classes can.
  • D. Interfaces cannot have protected methods but abstract classes can.
  • E. Interfaces cannot have instance fields but abstract classes can.

정답：D,E


질문 # 198
Which is the correct order of possible statements in the structure of a Java class file?

  • A. package, class, import
  • B. import, package, class
  • C. class, package, import
  • D. package, import, class
  • E. import, class, package

정답：D


질문 # 199
Given:
1z0-819-4d3663aa1d7b37d0ad2ebec67ef23964.jpg
This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?

  • A. Consumer consumer = (String args) > System.out.print(args);
  • B. Consumer consumer = System.out::print;
  • C. Consumer consumer = var arg > {System.out.print(arg);};
  • D. Consumer consumer = msg -> { return System.out.print(msg); };

정답：B

설명：
1z0-819-d06f453e924bdf11f8c17cf3ab93585f.jpg


질문 # 200
......

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