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2021 Mar 1z0-808 actual exam

Q21. Given: 

What is the result? 

A. myStr: 9009, myNum: 9009 

B. myStr: 7007, myNum: 7007 

C. myStr: 7007, myNum: 9009 

D. Compilation fails 


Q22. Given the fragment: 

What is the result? 

A. 13480.0 

B. 13480.02 

C. Compilation fails 

D. An exception is thrown at runtime 


Q23. Given the code fragment: 

What is the result? 

A. Jesse 25 Walter 52 

B. Compilation fails only at line n1 

C. Compilation fails only at line n2 

D. Compilation fails at both line n1 and line n2 


Q24. Given: 

Which inserted at line 11, will provide the following output? 

[21, 15, 11] 

A. list.removelf(e > e%2 != 0); 

B. list.removelf(e -> e%2 != 0); 

C. Ust.removelf(e -> e%2 = 0); 

D. list.remove(e -> e%2 = 0); 

E. None of the above. 



In output we can see that only odd numbers present, so we need to remove only even numbers to get expected output. From Java SE 8, there is new method call removelf which takes predicate object and remove elements which satisfies predicate condition. Predicate has functional method call take object and check if the given condition met or not, if met it returns true, otherwise false. Option C we have passed correct lambda expression to check whether the number is odd or even that matches to the functional method of predicate interface. Option A is incorrect as it is invalid lambda expression. Option B is incorrect as it removes all odd numbers. Option D is incorrect as there is no remove method that takes predicate as argument. https://docs.oracle.eom/javase/8/docs/api/java/util/ArrayList.html 

Q25. Given the code fragment: 

What is the result? 

A. 28false29 true 

B. 285 < 429 true 

C. true true 

D. compilation fails 


Latest 1z0-808 exam answers:

Q26. Given the following main method: 

What is the result? 

A. 5 4 3 2 1 0 

B. 5 4 3 2 1 

C. 4 2 1 

D. 5 

E. Nothing is printed 



Loop will run only once and after that num == 0 will break it After first cycle of the loop. 

Q27. Given the code fragment: 

public class Test { 

static String[][] arr =new String[3][]; 

private static void doPrint() { 

//insert code here 

public static void main(String[] args) { 

String[] class1 = {"A","B","C"}; 

String[] class2 = {"L","M","N","O"}; 

String[] class3 = {"I","J"}; 

arr[0] = class1; 

arr[1] = class2; 

arr[2] = class3; 


Which code fragment, when inserted at line //insert code here, enables the code to print 


A. int i = 0; 

for (String[] sub: arr) { 

int j = sub.length -1; 

for (String str: sub) { 



B. private static void doPrint() { 

for (int i = 0;i < arr.length;i++) { 

int j = arr[i].length-1; 


C. int i = 0; 

for (String[] sub: arr[][]) { 

int j = sub.length; 



D. for (int i = 0;i < arr.length-1;i++) { 

int j = arr[i].length-1; 






not A: The following line causes a compile error: 


Not C: Compile erro line: 

for (String[] sub: arr[][]) 

not D: Output: C 

Q28. Which two items can legally be contained within a java class declaration? 

A. An import statement 

B. A field declaration 

C. A package declaration 

D. A method declaration 

Answer: B,D 



Q29. Consider following interface. 

Which of the following will create instance of Runnable type? 

A. Runnable run = 0 -> {System.out.println("Run");} 

B. Runnable run = 0 -> System.outprintlnfRun"); 

C. Runnable run = 0 > System.outprintlnfRun"); 

D. Runnable run = > System.ouLprintlnfRun"}; 

E. None of the above. 



Option A is the correct answer. 

To create we have used following method with LocalDate class; 

public static LocalDate of(intyear, int month, intdayOfMonth) 

Here we need to remember that month is not zero based so if you pass 1 for month, then 

month will be January. 

Then we have used period object of 1 day and add to date object which makes current date 

to next day, so final output is 2015-03-27. Hence option A is correct. 

Q30. Given the following two classes: 

How should you write methods in the ElectricAccount class at line n1 so that the member variable bill is always equal to the value of the member variable kwh multiplied by the member variable rate? 

Any amount of electricity used by a customer (represented by an instance of the customer class) must contribute to the customer's bill (represented by the member variable bill) through the method useElectricity method. An instance of the customer class should never be able to tamper with or decrease the value of the member variable bill. 

A. Option A 

B. Option B 

C. Option C 

D. Option D