最新的Oracle Java SE 11 Programmer I - 1z1-815免費考試真題

A. True null

B. True false

C. A NullPointerException is thrown at runtime

D. Compilation fails

A. public void z() { } // position 3

B. @Override
// position 3
void x () {} // position 3
@Override // position 3
public void z() { } // position 3

C. implements A
// position 1
@Override // position 2

D. @Override
// position 2
public void z() { } // position 3

A. In Line 1, change the access modifier to private
private Person() {

B. In Line 2, change the access modifier to protected protected class Main {

C. In Line 1, remove the access modifier
Person() {

D. In Line 2, add extends Person to the Main class
public class Main extends Person {
and change Line 3 to create a new Main object
Person person = new Main();

E. In Line 1, change the access modifier to public
public Person() {

A. List<Character>

B. char

C. String

D. List<String>

A. Good Morning, Harry

B. Good Morning, Potter

C. Good Night, Potter

D. Good Night, Harry

A. String x = "1";

B. short x = 1;

C. Long x = 1;

D. Integer x = new Integer ("1");

E. Double x = 1;

F. Byte x = 1;

A. java.desktop

B. javafx

C. jdk.httpserver

D. jdk.jartool

E. java.logging

A. Boolean array[3];

B. int[] array;

C. Float[2] array;

D. Object array[];