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2017 Apr 1z0-808 exam engine

Q1. Given: 

public class FieldInit { 

char c; 

boolean b; 

float f; 

void printAll() { 

System.out.println("c = " + c); 

System.out.println("c = " + b); 

System.out.println("c = " + f); 

public static void main(String[] args) { 

FieldInit f = new FieldInit(); 

f.printAll(); 

What is the result? 

A. c = null 

b = false 

f = 0.0F 

B. c = 0 

b = false 

f = 0.0f 

C. c = null 

b = true 

f = 0.0 

D. c = 

b = false 

f = 0.0 

Answer:


Q2. Given: 

public class TestLoop { 

public static void main(String[] args) { 

int array[] = {0, 1, 2, 3, 4}; 

int key = 3; 

for (int pos = 0; pos < array.length; ++pos) { 

if (array[pos] == key) { 

break; 

System.out.print("Found " + key + "at " + pos); 

What is the result? 

A. Found 3 at 2 

B. Found 3 at 3 

C. Compilation fails 

D. An exception is thrown at runtime 

Answer:

Explanation: The following line does not compile: System.out.print("Found " + key + "at " + pos); 

The variable pos is undefined at this line, as its scope is only valid in the for loop. Any variables created inside of a loop are LOCAL TO THE LOOP. 


Q3. Given: 

Which two classes use the shape class correctly? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

F. Option F 

Answer: B,E 

Explanation: When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class (E). However, if it does not, then the subclass must also be declared abstract (B). Note: An abstract class is a class that is declared abstract—it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed. 


Q4. Given: 

What is the result? 

A. 3 4 5 6 

B. 3 4 3 6 

C. 5 4 5 6 

D. 3 6 4 6 

Answer:


Q5. 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:


Up to the minute 1z0-808 training:

Q6. Given the code fragment: 

What is the result? 

A. Sum is 600 

B. Compilation fails at line n1. 

C. Compilation fails at line n2. 

D. A ClassCastException is thrown at line n1. 

E. A ClassCastException is thrown at line n2. 

Answer:


Q7. Given the code fragment: 

public class Test { 

public static void main(String[] args) { 

boolean isChecked = false; 

int arry[] = {1,3,5,7,8,9}; 

int index = arry.length; 

while ( <code1> ) { 

if (arry[index-1] % 2 ==0) { 

isChecked = true; 

<code2> 

System.out.print(arry(index]+", "+isChecked)); 

Which set of changes enable the code to print 1, true? 

A. Replacing <code1> with index > 0 and replacing <code2> with index--; 

B. Replacing <code1> with index > 0 and replacing <code2> with --index; 

C. Replacing <code1> with index > 5 and replacing <code2> with --index ; 

D. Replacing <code1> with index and replacing <code2> with --index ; 

Answer:

Explanation: 

Note: Code in B (code2 is --index;). also works fine. 


Q8. Given: 

Which code fragment, when inserted at line 7, enables the code print true? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q9. Given: 

What is the result? 

A. Initialized Started 

B. Initialized Started Initialized 

C. Compilation fails 

D. An exception is thrown at runtime 

Answer:


Q10. Given: 

What is the result? 

A. A B C D 

B. A C D 

C. A B C 

D. A B D 

E. A B D C 

Answer: