100% Pass Guarantee PassLeader 1Z0-808 Dumps with VCE and PDF for Free (Question 25 – Question 32)

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QUESTION 25
Given:

What is the result?

A.    int main 1
B.    Object main 1
C.    String main 1
D.    Compilation fails
E.    An exception is thrown at runtime

Answer: C
Explanation:
All methods have the same name but different signature since the parameters are different. There is no problem with that.
JVM will call the method with signature “public static void main(String[] args)”
https://docs.oracle.com/javase/tutorial/java/javaOO/methods.html

QUESTION 26
Given the code fragment:

Which option represents the state of the num array after successful completion of the outer loop?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: A
Explanation:
At first look we can exclude option D because the number of elements in the array is 3, the result of multiplying the two array dimensions 1 x 3.
We can run the code
public class Main {
public static void main(String[] args) {
int num[][] = new int[1][3];
for (int i=0; i<num.length; i++) {
for (int j=0; j<num[i].length; j++) {
num[i][j] = 10;
System.out.println(“num[” + i + “][” + j + “]= ” + num[i][j]);
}
}
}
}
the output is
num[0][0]= 10
num[0][1]= 10
num[0][2]= 10

QUESTION 27
Given the code fragment:

What is the result?

A.    Jesse 25
Walter 52
B.    Compilation fails only at line n1
C.    Compilation fails only at line n2
D.    Compilation fails at both line n1 and line n2

Answer: D
Explanation:
At line n1, Person class hasn’t any constructor without arguments.
At line n2, there isn’t any method Person. If we want to call the constructor that should be “this(name)”.

QUESTION 28
Given the following code for a Planet object:

What is the output?

A.    Option A
B.    Option B
C.    Option C
D.    Option D
E.    Option E

Answer: C

QUESTION 29
You are asked to develop a program for a shopping application, and you are given the following information:
– The application must contain the classes Toy, EduToy, and consToy.
– The Toy class is the superclass of the other two classes.
– The int caicuiatePrice (Toy t) method calculates the price of a toy.
– The void printToy (Toy t) method prints the details of a toy.
Which definition of the Toy class adds a valid layer of abstraction to the class hierarchy?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: B
Explanation:
https://docs.oracle.com/javase/tutorial/java/IandI/abstract.html

QUESTION 30
Given the following code:

What are the values of each element in intArr after this code has executed?

A.    15, 60, 45, 90, 75
B.    15, 90, 45, 90, 75
C.    15, 30, 75, 60, 90
D.    15, 30, 90, 60, 90
E.    15, 4, 45, 60, 90

Answer: C

QUESTION 31
Given the following array:

Which two code fragments, independently, print each element in this array?

A.    Option A
B.    Option B
C.    Option C
D.    Option D
E.    Option E
F.    Option F

Answer: BE

QUESTION 32
Given the content of three files:

Which statement is true?

A.    Only the A.Java file compiles successfully.
B.    Only the B.java file compiles successfully.
C.    Only the C.java file compiles successfully.
D.    The A.Java and B.java files compile successfully.
E.    The B.java and C.java files compile successfully.
F.    The A.Java and C.java files compile successfully.

Answer: A
Explanation:
Class B doesn’t compile because we can’t use access modifiers (private) inside methods.
Class C doesn’t compile because if the class is part of a package (p1), the package statement must be the first line in the source code file, before any import statements (java.io.*) that may be present.

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