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Q51. 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 

Q52. Given: 

public class Test { 

public static void main(String[] args) { 

int ax = 10, az = 30; 

int aw = 1, ay = 1; 

try { 

aw = ax % 2; 

ay = az / aw; 

} catch (ArithmeticException e1) { 

System.out.println("Invalid Divisor"); 

} catch (Exception e2) { 

aw = 1; 

System.out.println("Divisor Changed"); 

ay = az /aw; // Line 14 

System.out.println("Succesful Division " + ay); 

What is the result? 

A. Invalid Divisor 

Divisor Changed 

Successful Division 30 

B. Invalid Divisor 

Successful Division 30 

C. Invalid Divisor 

Exception in thread "main" java.lang.ArithmeticException: / by zero 

at test.Teagle.main(Teagle.java:14) 

D. Invalid Divisor 

Exception in thread "main" java.lang.ArithmeticException: / by zero 

at test.Teagle.main(Teagle.java:14) 

Successful Division 1 

Answer:

Q53. Given the for loop construct: 

for ( expr1 ; expr2 ; expr3 ) { 

statement; 

Which two statements are true? 

A. This is not the only valid for loop construct; there exits another form of for loop constructor. 

B. The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin. 

C. When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop. 

D. The expression expr3 must be present. It is evaluated after each iteration through the loop. 

Answer: B,C 

Explanation: 

The for statement have this forms: 

for (init-stmt; condition; next-stmt) { 

body 

There are three clauses in the for statement. 

The init-stmt statement is done before the loop is started, usually to initialize an iteration 

variable. 

The condition expression is tested before each time the loop is done. The loop isn't 

executed if the boolean expression is false (the same as the while loop). 

The next-stmt statement is done after the body is executed. It typically increments an 

iteration variable. 

Q54. Given the code fragment: 

What is the result? 

A. 20 

B. 25 

C. 29 

D. Compilation fails 

E. AnArrayIndexOutOfBoundsException is thrown at runtime 

Answer:

Q55. Which of the following can fill in the blank in this code to make it compile? 

A. abstract 

B. public 

C. default 

D. It will not compile with any as interfaces cannot have non abstract methods. 

E. It will compile without filling the blank. 

Answer:

Explanation: 

From Java SE 8, we can use static and/or default methods in interfaces, but they should be non abstract methods. SO in this case using default in blank is completely legal. Hence option C is correct. Option A is incorrect as given method is not abstract, so can't use abstract there. Options B and E are incorrect as we can't have non abstract method interface if they are not default or static. https;//docs.oraclexom/javase/tutorial/java/Iandl/defaultmethods.html 

Q56. Given the code fragments: 

What is the result? 

A. Super Sub Sub 

B. Contract Contract Super 

C. Compilation fails at line n1 

D. Compilation fails at line n2 

Answer:

Q57. 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:

Q58. Given: 

public class X { 

static int i; 

int j; 

public static void main(String[] args) { 

X x1 = new X(); 

X x2 = new X(); 

x1.i = 3; 

x1.j = 4; 

x2.i = 5; 

x2.j = 6; 

System.out.println( 

x1.i + " "+ 

x1.j + " "+ 

x2.i + " "+ 

x2.j); 

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:

Q59. Given: 

How many objects have been created when the line / / do complex stuff is reached? 

A. Two 

B. Three 

C. Four 

D. Six 

Answer:

Q60. Given: 

And given the commands: 

javac Test.Java 

Java Test Hello 

What is the result? 

A. Success 

B. Failure 

C. Compilation fails. 

D. An exception is thrown at runtime 

Answer:

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