Free Oracle 1Z0-808 Exam Dumps and 1Z0-808 Exam Questions

Question No: 21

MultipleChoice

Which code fragment causes a compilation error?

Options

AOption A

BOption B

COption C

DOption D

EOption E

Question No: 22

MultipleChoice

Which three statements are true about exception handling?

Options

AOnly unchecked exceptions can be rethrown.

BAll subclasses of the RuntimeException class are recoverable.

CThe parameter in a catch block is of Throwable type.

DAll subclasses of the RuntimeException class must be caught or declared to be thrown.

EAll subclasses of the Exception class except the RuntimeException class are checked exceptions.

FAll subclasses of the Error class are checked exceptions and are recoverable.

Question No: 23

MultipleChoice

Given the code fragment:

Which code fragment, inserted at line n1, pints The Top element: 30?

Options

AOption A

BOption B

COption C

DOption D

EOption E

Question No: 24

MultipleChoice

Given:

And given the commands:

javac Test.java

java Test

What is the result?

Options

AJava SE

BJava EE

CCompilation fails at line n1.

DA NullPointerException is thrown at runtime.

Question No: 25

MultipleChoice

Given the following class:

Which three pieces of code, when inserted independently, set the value of amount to 100?

Options

AOption A

BOption B

COption C

DOption D

EOption E

FOption F

Question No: 26

MultipleChoice

Given the code fragments:

And,

Which statement is true?

Options

AAfter line 11, three objects are eligible for garbage collection.

BAfter line 11, two objects are eligible for garbage collection.

CAfter line 11, one object is eligible for garbage collection.

DAfter line 11, none of the objects are eligible for garbage collection.

Question No: 27

MultipleChoice

Given the following class:

Which two changes would encapsulate this class and ensure that the area field is always equal to length * height whenever the Rectangle class is used?

Options

ACall the setArea method at the end of the setHeight method.

BCall the setArea method at the beginning of the setHeight method.

CCall the setArea method at the end of the setLength method.

DCall the setArea method at the beginning of the setLength method.

EChange the setArea method to private.

FChange the area field to public.

Question No: 28

MultipleChoice

Given the code fragment:

Which two code fragments can be independently inserted at line n1 to enable the code to print the elements of the array in reverse order?

Options

Awhile (x > 0) {x--;System.out.print(array[x]);}

Bdo {x--;System.out.print(array[x]);} while (x >= 0);

Cwhile (x >= 0) {System.out.print(array[x]);x--;}

Ddo {System.out.print(array[x]);--x;} while (x >= 0);

Ewhile (x > 0) {System.out.print(array[--x]);}

Question No: 29

MultipleChoice

Given:

class Test

int a1;

public static void doProduct(int a) {

a = a * a;

)

public static void doString(StringBuilder s) {

s.append('' '' + s);

}

public static void main(String[] args) {

Test item = new Test();

item.a1 = 11;

StringBuilder sb = new StringBuilder(''Hello'');

Integer i = 10;

doProduct(i);

doString(sb);

doProduct(item.a1);

System.out.println(i + '' '' + sb + '' '' + item.a1);

}

What is the result?

Options

A10 Hello Hello 11

B10 Hello Hello 121

C100 Hello 121

D100 Hello Hello 121

E10 Hello 11

Question No: 30

MultipleChoice

Which two class definitions fail to compile?

Options

Aabstract class A3 {private static int i;public void doStuff(){}public A3(){}}

Bfinal class A1 {public A1(){}}

Cpublic class A2 {private static int i;private A2(){}}

Dclass A4 {protected static final int i;private void doStuff(){}}

Efinal abstract class A5 {protected static int i;void doStuff(){}abstract void doIt();}