Free Oracle 1z1-815 Exam Dumps Questions & Answers

Given:

Which two changes need to be made to make this class compile? (Choose two.)

• A.  Change Line 2 access modifier to protected:
  protected void checkValue(Object value)
  throws IllegalArgumentException;
• B.  Change Line 1 to a class:
  public class API {
• C.  Change Line 1 to extend java.lang.AutoCloseable:
  public interface API extends AutoCloseable {
• D.  Change Line 1 to an abstract class:
  public abstract class API {
• E.  Change Line 2 to an abstract method:
  public abstract void checkValue(Object value)
  throws IllegalArgumentException;

Given the code fragment:

What is the output?

• A.  [-3, -2, -1]
• B.  [-1, -2, -3]
• C.  A runtime exception is thrown.
• D.  The compilation fails.

Given:

Which two lines cause compilation errors? (Choose two.)

• A.  line 7
• B.  line 9
• C.  line 12
• D.  line 6
• E.  line 8

Given:
Automobile.java

Car.java

What must you do so that the code prints 4?

• A.  Remove the parameter from wheels method in line 3.
• B.  Remove abstract keyword in line 1.
• C.  Replace the code in line 2 with Car ob = new Car();
• D.  Add @Override annotation in line 2.

Which two statements are true for a two-dimensional array?

• A.  It is implemented as an array of the specified element type.
• B.  All methods of the class Object may be invoked on the two-dimensional array.
• C.  At declaration time, the number of elements of the array in each dimension must be specified
• D.  Using a row by column convention, each row of a two-dimensional array must be of the same size