Top Oracle 1z0-808 dump Choices
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2021 Mar 1z0-808 exam engine
Q91. Given the code fragment:
What is the result?
A. [Robb, Rick, Bran]
B. [Robb, Rick]
C. [Robb, Bran, Rick, Bran]
D. An exception is thrown at runtime.
Answer: A
Q92. Given:
Which constructor initializes the variable x3?
A. Only the default constructor of class X
B. Only the no-argument constructor of class Y
C. Only the no-argument constructor of class Z
D. Only the default constructor of object class
Answer: C
Q93. Given the code fragment:
What is the result?
A. A B C Work done
B. A B C D Work done
C. A Work done
D. Compilation fails
Answer: C
Q94. Which of the following can fill in the blank in this code to make it compile?
A. abstract
B. final
C. private
D. default
E. int
Answer: C
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. httpsy/docs.oracle.com/javase/tutorial/iava/landl/defaultmethods.html
Q95. Given:
public class Marklist {
int num;
public static void graceMarks(Marklist obj4) {
obj4.num += 10;
}
public static void main(String[] args) {
MarkList obj1 = new MarkList();
MarkList obj2 = obj1;
MarkList obj1 = null;
obj2.num = 60;
graceMarks(obj2);
}
}
How many objects are created in the memory runtime?
A. 1
B. 2
C. 3
D. 4
Answer: B
Explanation: obj1 and obj3.
when you do e2 = e1 you're copying object references - you're not making a copy of the object - and so the variables e1 and e2 will both point to the same object.
Refresh 1z0-808 actual test:
Q96. 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: A
Q97. Given the code fragment:
What is the result?
A. 1:2:3:4:5:
B. 1:2:3:
C. Compilation fails.
D. An ArrayoutofBoundsException is thrown at runtime.
Answer: A
Q98. Given:
public class Test {
static boolean bVar;
public static void main(String[] args) {
boolean bVar1 = true;
int count =8;
do {
System.out.println("Hello Java! " +count);
if (count >= 7) {
bVar1 = false;
}
} while (bVar != bVar1 && count > 4);
count -= 2;
}
}
What is the result?
A. Hello Java! 8 Hello Java! 6 Hello Java! 4
B. Hello Java! 8 Hello Java! 6
C. Hello Java! 8
D. Compilation fails
Answer: C
Explanation: Hello Java! 8
Q99. Given:
What is result?
A. Successful
B. Unsuccessful
C. Compilation fails
D. An exception is thrown at runtime
Answer: C
Q100. Given:
public class MyClass {
public static void main(String[] args) {
while (int ii = 0; ii < 2) {
ii++;
System.out.println("ii = " + ii);
}
}
}
What is the result?
A. ii = 1 ii = 2
B. Compilation fails
C. The program prints nothing
D. The program goes into an infinite loop with no output
E. The program goes to an infinite loop outputting: ii = 1 ii = 1
Answer: B
Explanation: The while statement is incorrect. It has the syntax of a for statement.
The while statement continually executes a block of statements while a particular condition is true. Its syntax can be expressed as:
while (expression) { statement(s) } The while statement evaluates expression, which must return a boolean value. If the expression evaluates to true, the while statement executes the statement(s) in the while block. The while statement continues testing the expression and executing its block until the expression evaluates to false.
Reference: The while and do-while Statements