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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
- Handle text using String and StringBuilder classes
- Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
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Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
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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 pdf:
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- 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
- Sort collections and arrays using Comparator and Comparable interfaces
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
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: Java I/O and NIO | - File handling
|
| Topic 2: Generics and Collections | - Java Collections Framework
|
| Topic 3: Java Class Design | - Encapsulation and Inheritance
|
| Topic 4: JDBC and Database Connectivity | - Database access
|
| Topic 5: Exception Handling | - Error handling in Java
|
| Topic 6: Streams API | - Stream operations
|
| Topic 7: Functional Programming | - Lambda Expressions
|
| Topic 8: Concurrency | - Multithreading
|
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
Java クラス ファイルの構造における可能なステートメントの正しい順序はどれですか。
- A. インポート、クラス、パッケージ
- B. パッケージ、インポート、クラス
- C. パッケージ、クラス、インポート
- D. クラス、パッケージ、インポート
- E. インポート、パッケージ、クラス
Correct Answer: B 🗳️
与えられた条件:
Java SE セキュリティガイドラインを実装する 3 つのアクションはどれですか? (3 つ選択してください。)
- A. 7行目をnames.clone();を返すように変更します。
- B. getNames() メソッド名を get$Names() に変更します。
- C. 3行目を private Secret(String[] names) { に変更します。
- D. 2行目をprivate final String[] names;に変更します。
- E. 2行目をprotected volatile String[] names;に変更します。
- F. 4行目をthis.names = names.clone();に変更します。
- G. 6行目をpublic synchronized String[] getNames() {に変更します。
Correct Answer: C,D,E 🗳️
与えられた条件:
結果はどうなりましたか？
- A. コンパイルに失敗します。
- B. 何もない
- C. 0
- D. java.lang.IllegalArgumentException がスローされます。
- E. 10
Correct Answer: A 🗳️
Explanation: Only visible for BraindumpsIT members. You can sign-up / login (it's free).
与えられた条件:
自動車.java
車.java
コードに 4 が出力されるようにするには、何をする必要がありますか?
- A. 2 行目に @Override アノテーションを追加します。
- B. 3 行目の wheels メソッドからパラメーターを削除します。
- C. 1 行目の abstract キーワードを削除します。
- D. 2 行目のコードを Car ob = new Car(); に置き換えます。
Correct Answer: A 🗳️
Explanation: Only visible for BraindumpsIT members. You can sign-up / login (it's free).
正しい初期化ステートメントはどれですか? (3 つ選択してください。)
- A. int[][][] e = {{1,1,1},{2,2,2}};
- B. バイト b = 10;
文字 c = b; - C. 文字列連絡先番号 = "(+2) (999) (232)";
- D. ブール値 false = (4 != 4);
- E. int x = 12_34;
- F. short sh = (short)'A';
- G. 浮動小数点数 x = 1f;
Correct Answer: E,F,G 🗳️
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