Free Oracle 1z1-830 Exam Dumps Questions & Answers

What do the following print?
java
public class Main {
int instanceVar = staticVar;
static int staticVar = 666;
public static void main(String args[]) {
System.out.printf("%d %d", new Main().instanceVar, staticVar);
}
static {
staticVar = 42;
}
}

• A.  666 666
• B.  Compilation fails
• C.  42 42
• D.  666 42

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

Given:
java
package vehicule.parent;
public class Car {
protected String brand = "Peugeot";
}
and
java
package vehicule.child;
import vehicule.parent.Car;
public class MiniVan extends Car {
public static void main(String[] args) {
Car car = new Car();
car.brand = "Peugeot 807";
System.out.println(car.brand);
}
}
What is printed?

• A.  Peugeot
• B.  An exception is thrown at runtime.
• C.  Compilation fails.
• D.  Peugeot 807

Which of the following statements oflocal variables declared with varareinvalid?(Choose 4)

• A.  var d[] = new int[4];
• B.  var b = 2, c = 3.0;
• C.  var h = (g = 7);
• D.  var f = { 6 };
• E.  var e;
• F.  var a = 1;(Valid: var correctly infers int)

Given:
java
public class BoomBoom implements AutoCloseable {
public static void main(String[] args) {
try (BoomBoom boomBoom = new BoomBoom()) {
System.out.print("bim ");
throw new Exception();
} catch (Exception e) {
System.out.print("boom ");
}
}
@Override
public void close() throws Exception {
System.out.print("bam ");
throw new RuntimeException();
}
}
What is printed?

• A.  bim bam boom
• B.  bim boom bam
• C.  bim bam followed by an exception
• D.  bim boom
• E.  Compilation fails.