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2021 Nov 1z0-808 practice exam

Q141. Given: 

What is the result? 

A. Shining Sun Shining Sun Shining Sun 

B. Shining Sun Twinkling Star Shining Sun 

C. Compilation fails 

D. A ClassCastException is thrown at runtime 

Answer:


Q142. 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; 

Test.doPrint(); 

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

COJ? 

A. int i = 0; 

for (String[] sub: arr) { 

int j = sub.length -1; 

for (String str: sub) { 

System.out.println(str[j]); 

i++; 

B. private static void doPrint() { 

for (int i = 0;i < arr.length;i++) { 

int j = arr[i].length-1; 

System.out.print(arr[i][j]); 

C. int i = 0; 

for (String[] sub: arr[][]) { 

int j = sub.length; 

System.out.print(arr[i][j]); 

i++; 

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

int j = arr[i].length-1; 

System.out.print(arr[i][j]); 

i++; 

Answer:

Explanation: 

Incorrect: 

not A: The following line causes a compile error: 

System.out.println(str[j]); 

Not C: Compile erro line: 

for (String[] sub: arr[][]) 

not D: Output: C 


Q143. Given the code fragment: 

Which two modifications should you make so that the code compiles successfully? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

Answer: A,C 

Explanation: 

Add throws clause in both printFileContent and main. 


Q144. Given: class Base { 

public static void main(String[] args) { 

System.out.println("Base " + args[2]); 

public class Sub extends Base{ 

public static void main(String[] args) { 

System.out.println("Overriden " + args[1]); 

And the commands: 

javac Sub.java 

java Sub 10 20 30 

What is the result? 

A. Base 30 

B. Overridden 20 

C. Overridden 20 Base 30 

D. Base 30 Overridden 20 

Answer:


Q145. 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. 011 

B. 012 

C. 123 

D. 000 

Answer:


Abreast of the times 1z0-808 training:

Q146. Given: 

class Sports { 

int num_players; 

String name, ground_condition; 

Sports(int np, String sname, String sground){ 

num_players = np; 

name = sname; 

ground_condition = sground; 

class Cricket extends Sports { 

int num_umpires; 

int num_substitutes; 

Which code fragment can be inserted at line //insert code here to enable the code to compile? 

A. Cricket() { 

super(11, "Cricket", "Condidtion OK"); 

num_umpires =3; 

num_substitutes=2; 

B. Cricket() { 

super.ground_condition = "Condition OK"; 

super.name="Cricket"; 

super.num_players = 11; 

num_umpires =3; 

num_substitutes=2; 

C. Cricket() { 

this(3,2); 

super(11, "Cricket", "Condidtion OK"); 

Cricket(int nu, ns) { 

this.num_umpires =nu; 

this.num_substitutes=ns; 

D. Cricket() { 

this.num_umpires =3; 

this.num_substitutes=2; 

super(11, "Cricket", "Condidtion OK"); 

Answer:

Explanation: 

Incorrect: 

not C, not D: call to super must be the first statement in constructor. 


Q147. 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 

Answer:

Explanation: 

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


Q148. Given the code fragment from three files: 

Which code fragment, when inserted at line 2, enables the code to compile? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

E. Option E 

Answer:


Q149. 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:


Q150. Which of the following can fill in the blank in this code to make it compile? (Select 2 options.) 

A. On line 1, fill in throws 

B. On line 1, fill in throws new 

C. On line 2, fill in throw new 

D. On line 2, fill in throws 

E. On line 2, fill in throws new 

Answer: A,C 

Explanation: 

Option A and C are the correct answer. 

In a method declaration, the keyword throws is used. So here at line 1 we have to use 

option A. 

To actually throw an exception, the keyword throw is used and a new exception is created, 

so at line 2 we have to use throw and new keywords, which is option C. Finally it will look 

like; 

public void method() throws Exception { 

throw new Exception0; 

REFERENCE : httpsy/docs.oracle.com/javase/tutorial/essential/io/fileOps.html#exception 

The correct answer is: On line 1, fill in throws. On line 2, fill in throw new