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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:
- Use local variable type inference, including as lambda parameters
- Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
- Handle text using String and StringBuilder classes
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 pdf:
- Use Java Streams to filter, transform and process data
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Use generics, including wildcards
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Sort collections and arrays using Comparator and Comparable interfaces
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Generics and Collections | - Java Collections Framework
|
| Topic 2: Streams API | - Stream operations
|
| Topic 3: Exception Handling | - Error handling in Java
|
| Topic 4: JDBC and Database Connectivity | - Database access
|
| Topic 5: Concurrency | - Multithreading
|
| Topic 6: Functional Programming | - Lambda Expressions
|
| Topic 7: Java I/O and NIO | - File handling
|
| Topic 8: Java Class Design | - Encapsulation and Inheritance
|
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
与えられた条件:
結果はどうなりましたか?
- A. スイカオレンジレモンブドウアプリコットりんご
- B. リンゴオレンジブドウレモンアプリコットスイカ
- C. 何もない
- D. リンゴアプリコットグレープレモンオレンジスイカ
Correct Answer: A 🗳️
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この要件を考慮すると、
モジュール ビークルはモジュール パーツに依存し、その com.vehicle パッケージを他のすべてのモジュールで使用できるようにします。
どの module-info.java 宣言が要件を満たしていますか?
- A. オプションB
- B. オプションC
- C. オプションD
- D. オプションA
Correct Answer: D 🗳️
与えられた条件:
このコマンドで実行します:
java メイン 1 2 3
このクラスの出力は何ですか?
- A. 何もない
- B. コンパイルに失敗しました。
- C. 1) 1つ
- D. 1) 12) 23) 3
- E. java.lang.ArrayIndexOutOfBoundsException がスローされます。
Correct Answer: D 🗳️
与えられた条件:
このコマンドで実行します:
java メイン 1 2 3
結果はどうなりましたか?
- A. 0). 11). 22). 3
- B. 0)。1
- C. java.lang.NullPointerException がスローされます。
- D. 0). one1). two1). two... と印刷する無限ループを作成します。
- E. コンパイルに失敗しました。
Correct Answer: D 🗳️
与えられた条件:
出力は何ですか?
A)
B)
C)
D)
- A. オプションB
- B. オプションC
- C. オプションD
- D. オプションA
Correct Answer: C 🗳️
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