Java SE 11 Developer 試験対策問題集

模擬試験モードの設定

上記は本サイトの模擬試験モードの設定値です。実際の試験の出題数・制限時間・合格基準は、各認定プログラムの公式サイトでご確認ください。

出題分野

• Java Data Types and Program Flow（データ型と流れの制御）（出題比率 16%）
• Java Object-Oriented Approach（オブジェクト指向の活用）（出題比率 20%）
• Arrays, Collections, Streams and Lambdas（配列とストリーム）（出題比率 16%）
• Exception Handling and Java I/O API（例外処理と入出力）（出題比率 16%）
• Concurrency and Secure Coding（並行処理と安全な実装）（出題比率 16%）
• Modules, JDBC, Localization and Annotations（モジュールと周辺 API）（出題比率 16%）

フリー問題

1. The Math class allows some of its floating-point methods an error bound of one o…
2. A pricing routine calls the elementary functions of the Math class on two differ…
3. A pricing sheet rounds the measurement 2.5 through the method of the Math class …
4. A helper appends text inside one thread and never publishes the buffer it builds…
5. Three constructors of one class each open with an explicit call to another of th…
6. A subclass declares a method whose name and parameter list match a private metho…
7. A type in a shared library carries no access modifier of its own and declares no…
8. A subinterface extends one interface that declares a method as abstract and anot…
9. A copy is taken of a range whose end index lies past the length of the source ar…
10. A team debates whether the comparator they wrote should override the equality me…
11. A cache compares a set it holds against the unmodifiable view of that very set t…
12. A rebuilt reader adds a class in the middle of its hierarchy, and instances that…
13. A reviewer reads that an error from the virtual machine can surface at a point t…
14. A helper class is written to restore the fields of another class and it calls th…
15. A report walks a shared concurrent map with one of its bulk operations, takes th…
16. A class has to let its callers read and change one piece of its internal state, …
17. A batch worker is started and then given the highest priority that the class def…
18. A team moves a localized application into a named module and keeps the factory c…
19. An annotation type is declared with the use of a type as its only target, and a …
20. A nightly job runs a stored routine through a prepared statement, reads the fals…