Certification Topics of 1z0-808 Exam PDF Recently Updated Questions [Q66-Q90]

Certification Topics of 1z0-808 Exam PDF Recently Updated Questions

1z0-808 Exam Prep Guide: Prep guide for the 1z0-808 Exam

Oracle 1z1-808 certification exam is comprised of 70 multiple-choice questions that must be answered within 150 minutes. 1z0-808 exam covers a wide range of topics, including Java basics, Java data types, Java operators and decision constructs, Java arrays, Java classes and objects, Java interfaces and inheritance, Java exceptions, Java I/O fundamentals, and Java collections. Java SE 8 Programmer I certification exam is a computer-based test, and candidates can take it at any authorized testing center around the world.

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NEW QUESTION # 66
Given:

What is the result?

A. 10 : 22 : 20
B. 10 : 22 : 22
C. 10 : 30 : 6
D. 10 : 22 : 6

Answer: C

Explanation:
Explanation/Reference:

NEW QUESTION # 67
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

NEW QUESTION # 68
The protected modifier on a Field declaration within a public class means that the field
______________.

A. Can be read but not written from outside the class
B. Can be read and written from this class and its subclasses defined in any package
C. Can be read and written from this class and its subclasses only within the same package
D. Cannot be modified

Answer: B

Explanation:
http://beginnersbook.com/2013/05/java-access-modifiers/

NEW QUESTION # 69
Given:

What is the result?

A. Compilation fails.
B. An exception is thrown at runtime.
C. 10 20 30 40
D. 0 0 30 40

Answer: A

NEW QUESTION # 70
Given:

What is the result?

A. Marrown
String out of limits
JesOran
B. Marrown
String out of limits
Array out of limits
C. Marrown
NanRed
JesOran
D. Marrown
String out of limits

Answer: A

NEW QUESTION # 71
Given:

What is the result?

A. 100 200 : 100 200 :
B. 100 0 : 100 0 :
C. 100 0 : 100 200:
D. 100 200 : 100 0 :

Answer: B

NEW QUESTION # 72
Given:

What is the result?
Compilation fails at line n3 and line n4.

A. Welcome Visit Count:1
B. Welcome Visit Count: 2
C. Welcome Visit Count: 1
Welcome Visit Count:1
D. Compilation fails at line n1 and line n2.

Answer: A

NEW QUESTION # 73
Given this code for a Planet object:

What is the output?

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

Answer: D

NEW QUESTION # 74
Given:

Which two code fragments can be inserted at line n1?

A. for(int iVal = 0; iVal <=5; iVal++){}
B. Test() {}
C. package p1;
D. String str = "Java";
E. import java.io.*;

Answer: C,D

NEW QUESTION # 75
Which is true about the switch statement?

A. It must contain the default section.
B. Its expression can evaluate to a collection of values.
C. The break statement, at the end of each case block, is optional.
D. Its case label literals can be changed at runtime.

Answer: C

Explanation:
https://www.geeksforgeeks.org/switch-statement-in-java/

NEW QUESTION # 76
Examine the given definitions:

and the code fragment:

Which statement is true about the implementation of Object-Oriented Programming concepts in the given code?

A. Only inheritance and encapsulation are implemented.
B. Only polymorphism and inheritance are implemented.
C. Polymorphism, abstraction, and encapsulation are implemented.
D. Polymorphism, inheritance, and abstraction are implemented.

Answer: D

NEW QUESTION # 77
Given:

What is the result?

A. DerivedBDerivedB
B. DerivedBDerivedA
C. BaseDerivedB
D. BaseDerivedA
E. A classcast Exception is thrown at runtime.

Answer: A

NEW QUESTION # 78
Given:

What is the result?

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

Answer: A

NEW QUESTION # 79
Given:

What is the result?

A. An exception is thrown at runtime
B. There is no result because this is not correct way to determine the hash code
C. Compilation fails
D. Hash is: 111111, 44444444, 999999999

Answer: C

Explanation:
The compilation fails as SampleClassA and SampleClassB cannot override SampleClass because the return type of SampleClass is int, while the return type of SampleClassA and SampleClassB is long.
Note: If all three classes had the same return type the output would be: Hash is : 111111, 44444444, 999999999

NEW QUESTION # 80
Given the code format:

Which code fragment must be inserted at line 6 to enable the code to compile?

A. DBConfiguration f; return f;
B. Retutn 0;
C. Return new DBConfiguration;
D. Return DBConfiguration;

Answer: D

NEW QUESTION # 81
Given:

What is the result?

A. Compilation fails.
B. false true
C. true false
D. false false
E. true true

Answer: B

NEW QUESTION # 82
Which usage represents a valid way of compiling java source file with the name "Main"?

A. java Main
B. javac Main.java
C. javac Main
D. java Main.class
E. java Main.java

Answer: B

Explanation:
The compiler is invoked by the javac command. When compiling a Java class, you must include the file name, which houses the main classes including the Java extension. So to run Main.java file we have to use command in option A.
TO execute Java program we can use Java command but can't use it for compiling. https://docs.oracle.com/javase/tutorial/getStarted/application/index.html

NEW QUESTION # 83
Given the code fragment: List colors = new ArrayList(); colors.add("green");
colors.add("red");
colors.add("blue");
colors.add("yellow");
colors.remove(2);
colors.add(3,"cyan");
System.out.print(colors);
What is the result?

A. [green, blue, yellow, cyan]
B. Am IndexOutOfBoundsException is thrown at runtime
C. [green, red, yellow, cyan]
D. [green, red, cyan, yellow]

Answer: C

Explanation:
First the list [green, red, blue, yellow] is build.
The blue element is removed:
[green, red, yellow]
Finally the element cyan is added at then end of the list (index 3).
[green, red, yellow, cyan]

NEW QUESTION # 84
Given the code fragment:

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

Answer: E

NEW QUESTION # 85
Which two are valid declarations of a two-dimensional array?

A. int[2][2] array2D;
B. int array2D[];
C. int[] array2D[];
D. int[][] array2D[];
E. int[][] array2D;

Answer: C,E

Explanation:
int[][] array2D; is the standard convention to declare a 2-dimensional integer array.
int[] array2D[]; works as well, but it is not recommended.
Incorrect answers:
int[2][2] array2D;
The size of the array cannot be defined this way.
int array2D[]; is good definition of a one-dimensional array.
int[] []array2D[];is good definition of a three-dimensional array.

NEW QUESTION # 86
Given the code fragment:

What is the result?

A. 0
B. 1
C. Compilation fails.
D. 2

Answer: A

NEW QUESTION # 87
Given the code fragment:

What is the result?
A:

B: Compilation fails only at line n1.
C: Compilation fails only at line n2.
D: Compilation fails only at line n3.
E: Compilation fails at both line n2 and line n3.