Oracle 1z0-830 시험 개요:

Oracle 1z0-830 시험 요강 주제:

최신 Java SE 1z0-830 무료샘플문제

문제 #1

Given:
java
public static void main(String[] args) {
try {
throw new IOException();
} catch (IOException e) {
throw new RuntimeException();
} finally {
throw new ArithmeticException();
}
}
What is the output?

A. ArithmeticException
B. Compilation fails
C. IOException
D. RuntimeException

문제 #2

Given:
java
Object myVar = 0;
String print = switch (myVar) {
case int i -> "integer";
case long l -> "long";
case String s -> "string";
default -> "";
};
System.out.println(print);
What is printed?

A. long
B. nothing
C. string
D. It throws an exception at runtime.
E. integer
F. Compilation fails.

문제 #3

Which of the following java.io.Console methods doesnotexist?

A. readLine(String fmt, Object... args)
B. read()
C. reader()
D. readPassword(String fmt, Object... args)
E. readLine()
F. readPassword()

문제 #4

Given:
java
Runnable task1 = () -> System.out.println("Executing Task-1");
Callable<String> task2 = () -> {
System.out.println("Executing Task-2");
return "Task-2 Finish.";
};
ExecutorService execService = Executors.newCachedThreadPool();
// INSERT CODE HERE
execService.awaitTermination(3, TimeUnit.SECONDS);
execService.shutdownNow();
Which of the following statements, inserted in the code above, printsboth:
"Executing Task-2" and "Executing Task-1"?

A. execService.call(task1);
B. execService.submit(task2);
C. execService.execute(task1);
D. execService.run(task2);
E. execService.submit(task1);
F. execService.execute(task2);
G. execService.run(task1);
H. execService.call(task2);

문제 #5

A module com.eiffeltower.shop with the related sources in the src directory.
That module requires com.eiffeltower.membership, available in a JAR located in the lib directory.
What is the command to compile the module com.eiffeltower.shop?

A. css
CopyEdit
javac -path src -p lib/com.eiffel.membership.jar -d out -m com.eiffeltower.shop
B. bash
CopyEdit
javac -source src -p lib/com.eiffel.membership.jar -d out -m com.eiffeltower.shop
C. css
CopyEdit
javac --module-source-path src -p lib/com.eiffel.membership.jar -s out -m com.eiffeltower.shop
D. css
CopyEdit
javac --module-source-path src -p lib/com.eiffel.membership.jar -d out -m com.eiffeltower.shop

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