1z1-815 무료 덤프문제 온라인 액세스

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

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

Given:

What is the result?

• A.nothing
• B.10
• C.0 4 9
• D.0

Given:

Which two methods facilitate valid ways to read instance fields? (Choose two.)

• A.getACount
• B.getCCount
• C.getGCount
• D.getTotalCount
• E.getTCount

What is the result?
public class StringReplace {
public static void main(String[] args) {
String message = "Hi everyone!";
System.out.println("message = " + message.replace("e", "X")); } }

• A.A runtime error is produced.
• B.message = Hi Xveryone!
• C.message = Hi XvXryonX!
• D.message = Hi everyone!
• E.A compile time error is produced.
• F.message =

Given the code fragment:
1. ArrayList<Integer> list = new ArrayList<>(1);
2. list.add(1001);
3. list.add(1002);
4. System.out.println(list.get(list.size()));
What is the result?

• A.An exception is thrown at run time due to error on line 4
• B.Compilation fails due to an error on line 1.
• C.An exception is thrown at run time due to error on line 3
• D.1002