Java SE 8 Programmer I - 1z1-808 Exam Practice Test

Question 1

Given the code fragment:
StringBuilder sb = new StringBuilder();
sb.append("World");
Which fragment prints Hello World?
sb.insert(0, "Hello ");

A. System.out.println(sb);
sb.append(0, "Hello ");

B. System.out.println(sb);
sb.set(0, "Hello ");

C. System.out.println(sb);
sb.add(0, "Hello ");

D. System.out.println(sb);

Correct Answer: A

Question 2

Given:

What is the result?

A. 10 20 30 40

B. An exception is thrown at runtime.

C. Compilation fails.

D. 0 0 30 40

Correct Answer: D

Question 3

Given:
What is the result?

A. 11, 21, 31, 11, 21, 31

B. Compilation fails

C. 10, 20, 30, 10, 20, 30

D. 11, 21, 31, 12, 22, 32

E. 12, 22, 32, 12, 22, 32

Correct Answer: B

Question 4

Given:

and the code fragment:
S2 sobj = new S2();
sobj.display(10, 100);
What is the result?

A. Parent 10
Child 10
Parent 1000

B. Child 10
Parent 100
Parent 100

C. A compile time error occurs.

D. Child 10
Child 100
Parent 100

Correct Answer: C

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Question 5

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

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

B. Boolean available = "TRUE":

C. Integer pages = 20;

D. Double price = 200D;

Correct Answer: C,D

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Question 6

Given the code fragment:

What is the result?

A. s-1

B. S 6

C. S 5

D. w 7

Correct Answer: A

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Question 7

Given the classes:
* AssertionError
* ArithmeticException
* ArrayIndexOutofBoundsException
* FileNotFoundException
* IllegalArgumentException
* IOError
* IOException
* NumberFormatException
* SQLException
Which option lists only those classes that belong to the unchecked exception category?

A. AssertionError, IOError, IOException

B. FileNotFoundException, IOException, SQLException

C. ArrayIndexOutOfBoundException, IllegalArgumentException, FileNotFoundException

D. ArithmeticException, FileNotFoundException, NumberFormatException

E. AssertionError, ArrayIndexOutOfBoundsException, ArithmeticException

Correct Answer: E

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Question 8

Given the code fragment:

Which three code fragments can be independently inserted at line nl to enable the code to print one?

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

B. Double x = 1;

C. Byte x = 1;

D. Long x = 1;

E. String x = "1";

F. short x = 1;

Correct Answer: A,C,F

Question 9

Given the code fragment:

What is the result?

A. Compilation fails

B. 0 2 4

C. 2 4

D. 0 2 4 6

Correct Answer: B

Question 10

Given the code fragment:

Which two code fragments can be independently inserted at line n1 to enable the code to print the elements of the array in reverse order?

A. while (x >= 0) {System.out.print(array[x]);x--;}

B. do {System.out.print(array[x]);--x;} while (x >= 0);

C. do {x--;System.out.print(array[x]);} while (x >= 0);

D. while (x > 0) {x--;System.out.print(array[x]);}

E. while (x > 0) {System.out.print(array[--x]);}

Correct Answer: C,E

Question 11

Given:

What is the result?

A. Compilation fails

B. 2

C. 1

D. 1

E. The loop executes infinite times

Correct Answer: E

Question 12

Which two statements are true about Java byte code? (Choose two.)

A. It can run on any platform that has a Java compiler.

B. It has ".java" extension.

C. It can be serialized across network.

D. It can run on any platform that has the Java Runtime Environment.

E. It can run on any platform.

Correct Answer: C,D

Question 13

Given:
public class TestOperator {
public static void main(String[] args) {
int result = 30 -12 / (2*5)+1;
System.out.print("Result = " + result);
}
}
What is the result?

A. Result = 3

B. Result = 28

C. Result = 2

D. Result = 29

E. Result = 30

Correct Answer: E

Question 14

Given:

Which two classes use the shape class correctly?

A. Option E

B. Option D

C. Option B

D. Option A

E. Option F

F. Option C

Correct Answer: A,C

Explanation: Only visible for Actualtests4sure members. You can sign-up / login (it's free).

Question 15

Which three are valid replacements for foo so that the program will compiled and run?
public class ForTest {
public static void main(String[] args) {
int[] arrar = {1,2,3};
for ( foo ) {
}
}
}

A. ; i < 1; i++

B. int i: array

C. ; i < 1;

D. ;;

E. int i = 0; i < 1; i++

Correct Answer: B,D,E

Oracle Java SE 8 Programmer I - 1z1-808 Exam Practice Test

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