최신 1z1-808 무료덤프 - Oracle Java SE 8 Programmer I

문제1

Which statement is true about the default constructor of a top-level class?

A. It has private access modifier in its declaration.

B. The default constructor of a subclass always invokes the no-argument constructor of its superclass.

C. It can take arguments.

D. It can be overloaded.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제2

Given:

What is the result?

A. Option D

B. Option C

C. Option B

D. Option A

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제3

Given:
public class Test {
public static void main(String[] args) {
try {
String[] arr =new String[4];
arr[1] = "Unix";
arr[2] = "Linux";
arr[3] = "Solarios";
for (String var : arr) {
System.out.print(var + " ");
}
} catch(Exception e) {
System.out.print (e.getClass());
}
}
}
What is the result?

A. Unix Linux Solaris

B. Null Unix Linux Solaris

C. Class java.lang.NullPointerException

D. Class java.lang.Exception

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제4

Given this code for the classes MyException and Test:

What is the result?

A. B

B. AB

C. A

D. I

E. A compile time error occurs at line n1.

정답: D

문제5

Which two are benefits of polymorphism?

A. More flexible and reusable code

B. More efficient code at runtime

C. More dynamic code at runtime

D. Faster code at runtime

E. Code that is protected from extension by other classes

정답: A,C

문제6

Given the code fragment:

What is the result?

A. 0 2 4 6

B. 0 2 4

C. 2 4

D. Compilation fails.

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제7

Which three are advantages of the Java exception mechanism?

A. Provides a set of standard exceptions that covers all the possible errors

B. Improves the program structure because the error handling code is separated from the normal program function

C. Allows the creation of new exceptions that are tailored to the particular program being created

D. Improves the program structure because exceptions must be handled in the method in which they occurred

E. Improves the program structure because the programmer can choose where to handle exceptions

정답: B,C,E

설명: (DumpTOP 회원만 볼 수 있음)

문제8

Which two initialization statements are valid? (Choose two.)

A. String tmpAuthor = author, author ="Mc Donald";

B. Double price = 200D;

C. Boolean available = "TRUE":

D. Integer pages = 20;

정답: B,D

설명: (DumpTOP 회원만 볼 수 있음)

문제9

Given the code fragment:

What is the result?

A. A B C Work done

B. A Work done

C. A B C D Work done

D. Compilation fails

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제10

What is the result?
boolean log3 = ( 5.0 != 6.0) && ( 4 != 5);
boolean log4 = (4 != 4) || (4 == 4);
System.out.println("log3:"+ log3 + \nlog4" + log4);

A. log3:true
log4:false

B. log3:false
log4:false

C. log3:true
log4:true

D. log3:false
log4:true

정답: C

문제11

Given:
public class App {
// Insert code here
System.out.print("Welcome to the world of Java");
}
}
Which two code fragments, when inserted independently at line // Insert code here, enable the program to execute and print the welcome message on the screen?

A. static void main (String [] args) {

B. public void main (String [] args) {

C. static public void main (String [] args) {

D. public static void main (String [] args) {

E. public static void Main (String [] args) {

정답: C,D

설명: (DumpTOP 회원만 볼 수 있음)

문제12

Given the code fragment:
for (int ii = 0; ii < 3;ii++) {
int count = 0;
for (int jj = 3; jj > 0; jj--) {
if (ii == jj) {
++count;
break;
}
}
System.out.print(count);
continue;
}
What is the result?

A. 012

B. 000

C. 123

D. 011

정답: D

문제13

Given:
public class Test {
public static void main (String[] args) {
char[] arr = {97, '\t', 'e', '\n', 'i', '\t', 'o'};
for (char var: arr) {
System.out.print(var);
}
System.out.print("\nThe length is :" + arr.length);
}
}
What is the result?

A. aeio
The length is : 4

B. a e
i o
The length is : 4

C. a e
i o
The length is : 7

D. Compilation fails.

E. a e
The length is : 2

정답: C

문제14

Given the class definitions:

And the code fragment of the main() method,

What is the result?

A. Java
Jeve
ve

B. Java
Java
Java

C. Compilation fails

D. Java
Jeve
va

정답: D

문제15

Given the code fragment:

What is the result?

A. Sum is 600

B. A ClassCastException is thrown at line n1.

C. Compilation fails at line n1.

D. A ClassCastException is thrown at line n2.

E. Compilation fails at line n2.

정답: E

설명: (DumpTOP 회원만 볼 수 있음)

문제16

Which two are Java Exception classes?

A. TooManyArgumentsException

B. DuplicatePathException

C. IllegalArgumentException

D. SercurityException

정답: C,D

문제17

Consider:
Integer number = Integer.valueOff 808.1");
Which is true about the above statement?

A. The value of the variable number will be 0.

B. The value of the variable number will be 808

C. The value of the variable number will be 808.1

D. A NumberFormatException will be throw.

E. It will not compile.

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제18

Given:

What is the result?

A. Option D

B. Option C

C. Option B

D. Option A

정답: C

설명: (DumpTOP 회원만 볼 수 있음)

문제19

Given the code fragment:

What is the result?

A. A 0
B 1

B. A NullPointerException is thrown at runtime.

C. A element 0
B element 1

D. A
B

정답: B

최신 1z1-808 무료덤프 - Oracle Java SE 8 Programmer I

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