Up to the minute Oracle 1z0-808 - An Overview 141 to 150

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2021 Oct 1z0-808 exam answers

Q141. Given the code fragment: 

Which option can replace xxx to enable the code to print 135? 

A. int e = 0; e < = 4; e++ 

B. int e = 0; e < 5; e + = 2 

C. int e = 1; e < = 5; e + = 1 

D. int e = 1; e < 5; e+ =2 

Answer:


Q142. Which three statements are benefits of encapsulation? 

A. Allows a class implementation to change without changing t he clients 

B. Protects confidential data from leaking out of the objects 

C. Prevents code from causing exceptions 

D. Enables the class implementation to protect its invariants 

E. Permits classes to be combined into the same package 

F. Enables multiple instances of the same class to be created safely 

Answer: A,B,D 


Q143. Given: 

What is the result? 

A. 11, 21, 31, 11, 21, 31 

B. 11, 21, 31, 12, 22, 32 

C. 12, 22, 32, 12, 22, 32 

D. 10, 20, 30, 10, 20, 30 

Answer:


Q144. Given the code fragment: 

What is the result if the integer aVar is 9? 

A. 10 Hello world! 

B. 10 Hello universe! 

C. 9 Hello world! 

D. Compilation fails. 

Answer:


Q145. Given: 

What is the result? 

A. 2 4 6 8 10 12 

B. 2 4 6 8 10 12 14 

C. Compilation fails 

D. The program prints multiple of 2 infinite times 

E. The program prints nothing 

Answer:


Renovate 1z0-808 exam:

Q146. Consider 

Integer number = Integer.valueOff 808.1"); 

Which is true about the above statement? 

A. The value of the variable number will be 808.1 

B. The value of the variable number will be 808 

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

D. A NumberFormatException will be throw. 

E. It will not compile. 

Answer:

Explanation: 

The Integer class value of 0 returns an Integer from given string. But we need to pass string which has correct format for integer otherwise it will throw a NumberFormatException. In this case we have passed string which is not an integer value (since what we passed is fractional number), so option D is correct. 


Q147. Given: 

What is the result? 

A. 10 : 22 : 20 

B. 10 : 22 : 22 

C. 10 : 22 : 6 

D. 10 : 30 : 6 

Answer:


Q148. Given the code fragment: int[] array = {I, 2, 3, 4, 5}; And given the requirements: 

Process all the elements of the array in the order of entry. 

Process all the elements of the array in the reverse order of entry. 

Process alternating elements of the array in the order of entry. 

Which two statements are true? 

A. Requirements 1, 2, and 3 can be implemented by using the enhanced for loop. 

B. Requirements 1, 2, and 3 can be implemented by using the standard for loop. 

C. Requirements 2 and 3 CANNOT be implemented by using the standard for loop. 

D. Requirement 1 can be implemented by using the enhanced for loop. 

E. Requirement 3 CANNOT be implemented by using either the enhanced for loop or the standard for loop. 

Answer: D,E 


Q149. Given: 

public class Test { 

public static void main(String[] args) { 

int day = 1; 

switch (day) { 

case "7": System.out.print("Uranus"); 

case "6": System.out.print("Saturn"); 

case "1": System.out.print("Mercury"); 

case "2": System.out.print("Venus"); 

case "3": System.out.print("Earth"); 

case "4": System.out.print("Mars"); 

case "5": System.out.print("Jupiter"); 

Which two modifications, made independently, enable the code to compile and run? 

A. Adding a break statement after each print statement 

B. Adding a default section within the switch code-block 

C. Changing the string literals in each case label to integer 

D. Changing the type of the variable day to String 

E. Arranging the case labels in ascending order 

Answer: A,C 

Explanation: The following will work fine: 

public class Test { 

public static void main(String[] args) { 

int day = 1; 

switch (day) { 

case 7: System.out.print("Uranus"); break; 

case 6: System.out.print("Saturn"); break; 

case 1: System.out.print("Mercury"); break; 

case 2: System.out.print("Venus"); break; 

case 3: System.out.print("Earth"); break; 

case 4: System.out.print("Mars"); break; 

case 5: System.out.print("Jupiter"); break; 


Q150. public class ForTest { 

public static void main(String[] args) { 

int[] arrar = {1,2,3}; 

for ( foo ) { 

Which three are valid replacements for foo so that the program will compiled and run? 

A. int i: array 

B. int i = 0; i < 1; i++ 

C. ;; 

D. ; i < 1; i++ 

E. ; i < 1; 

Answer: A,B,C 



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