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Questions and Answers

Which output is possible when the provided code is executed?

Eat!Run!Relax! or Run!Eat!Relax! (correct)

The program results in compiler error(s).

Eat!Run!Relax!Run!Eat!Relax! or Relax!Eat!Run! (correct)

Run!Eat!Relax! or Run!Relax!Eat! (correct)

Which keyword prevents multiple threads from executing a method simultaneously?

static

sleep

synchronized (correct)

final

What will be the content of the file after executing the provided Java snippet?

A (correct)

Which modifiers can be applied to methods in a Java 8 Interface?

default Signup and view all the answers

Which term is not classified as a severity level in SonarQube?

Issues Signup and view all the answers

What will be printed when the first code snippet is executed?

c=1 c=2 Signup and view all the answers

Which values will actually be printed when class A implements interface I3?

3333 1111 2222 Signup and view all the answers

What will the output of the provided code be when executed?

Standard Edition Signup and view all the answers

What will be printed after executing the provided code snippet?

0 Continue Signup and view all the answers

Which of these statements will not cause an error when added to mySet based on the provided code?

mySet.add(false); Signup and view all the answers

What will the output of the last provided snippet be at runtime?

Run! Eat! Signup and view all the answers

What happens in the first code snippet if the c method is called with an existing A instance?

It will return null. Signup and view all the answers

Given the multiple definitions of method1 within the interfaces, which implementation will be executed in class A?

The implementation of I3's method1. Signup and view all the answers

Which statement does not represent a principle of the Agile Manifesto?

Responding to change over Following a plan Signup and view all the answers

Which role is responsible for developing working software in Scrum?

Scrum Team Signup and view all the answers

Which of the following statements about Java Interpreters is correct?

Java Interpreter converts Java Program into bytecode and executes them. Signup and view all the answers

Identify the invalid loop among the following options.

for(int a = 6; a == 5; a++) Signup and view all the answers

Which of the following is a valid parameterized constructor declaration for the Customer class?

public Customer(String customerName) { this.customerName = customerName; } Signup and view all the answers

Which of the following loops is a valid loop structure in Java?

for(int i = 3; i <= 99; i = i + 2) Signup and view all the answers

What will be the output of the Tester class when executed?

2 Signup and view all the answers

What will be the output of the provided Derived and Base classes?

Derived 13 Signup and view all the answers

What will be the output of the Tester class with the split method?

ABCD Signup and view all the answers

Which statement is correct regarding class variables and instance variables?

Each class instance has its own copy of the class variable. Signup and view all the answers

Study Notes

SonarQube Severity Levels

SonarQube does not have a severity level called "Issues"
Major, Critical, and Blocker are severity levels in SonarQube

Java 8 Interface Method Modifiers

Public, default, and static modifiers are allowed for methods in Java 8 interfaces

Java Output of Code Snippet

The output would be the ASCII character for 'A'.

Thread Synchronization Keyword

The keyword 'synchronized' ensures only one thread executes a method at a time.

Thread Execution Order

The output when executed could be "Run! Eat! Relax!" or "Eat! Run! Relax!" because threads run concurrently. The order is not guaranteed.

Valid Elements for HashSet

The valid elements which can be added to a HashSet without causing errors are null, 12.56, "A", and false

Output of Java Code Snippet

The output is "0 Continue".

Java Standard Edition

The program output is "Standard Edition"

Output based on Interface Code

3333

Output from Java Code Snippet

c=0 c=1

Class Variables vs. Instance Variables

Class variables are shared among all instances of a class, stored in one memory location. Instance variables are unique to each object, each instance of a class has its own copy

Valid Method in Class Sample

The valid method in the class Sample is m1(float a, int b). The other would cause a compile-time error due to ambiguity.

Output of For Loop

The output of the for-loop is "1".

String Manipulation

The output of character code subtracting 32 from each first character of the string array is "A B C D"

Parameterized Customer Constructor

public Customer(int customerId)
public Customer(String customerName)

Invalid Loop

The invalid loop structure is for(int a = 6; a == 5; a++).

Java Interpreter Functionality

The Java Interpreter converts Java code into bytecode.
The Java Interpreter translates bytecode into machine code.
Java Interpreter does not translate all at once.
The Java Compiler translates the code all at once.

Scrum Roles and Responsibilities

Product Owner: Creates and maintains product backlog.
Scrum Master: Conducts daily stand-up meetings.
Scrum Team: Develops working software.

Agile Manifesto Elements

Individuals and interactions are important.
Working software is prioritized over comprehensive documentation.
Customer collaboration is crucial.
Responding to change is favored over strict adherence to plans.

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Questions and Answers

Which output is possible when the provided code is executed?

Which keyword prevents multiple threads from executing a method simultaneously?

What will be the content of the file after executing the provided Java snippet?

Which modifiers can be applied to methods in a Java 8 Interface?

Which term is not classified as a severity level in SonarQube?

What will be printed when the first code snippet is executed?

Which values will actually be printed when class A implements interface I3?

What will the output of the provided code be when executed?

What will be printed after executing the provided code snippet?

Which of these statements will not cause an error when added to mySet based on the provided code?

What will the output of the last provided snippet be at runtime?

What happens in the first code snippet if the c method is called with an existing A instance?

Given the multiple definitions of method1 within the interfaces, which implementation will be executed in class A?

Which statement does not represent a principle of the Agile Manifesto?

Which role is responsible for developing working software in Scrum?

Which of the following statements about Java Interpreters is correct?

Identify the invalid loop among the following options.

Which of the following is a valid parameterized constructor declaration for the Customer class?

Which of the following loops is a valid loop structure in Java?

What will be the output of the Tester class when executed?

What will be the output of the provided Derived and Base classes?

What will be the output of the Tester class with the split method?

Which statement is correct regarding class variables and instance variables?

Study Notes

SonarQube Severity Levels

Java 8 Interface Method Modifiers

Java Output of Code Snippet

Thread Synchronization Keyword

Thread Execution Order

Valid Elements for HashSet

Output of Java Code Snippet

Java Standard Edition

Output based on Interface Code

Output from Java Code Snippet

Class Variables vs. Instance Variables

Valid Method in Class Sample

Output of For Loop

String Manipulation

Parameterized Customer Constructor

Invalid Loop

Java Interpreter Functionality

Scrum Roles and Responsibilities

Agile Manifesto Elements

Studying That Suits You

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