UGRD-CS6203 Object-Oriented Programming

These variables are inside a class however outside any method. They come into existence when the class instantiates.	Instance variables
Its a good practice to use close() inside finally block.	TRUE
It is the most fundamental entity in Java or any other Object Oriented Language.	Object
The capability of a method to do different things based on the object that it is acting upon. In other words, it allows you define one interface and have multiple implementations.	Polymorphism
A class can be made static only if it is _______________?	Nested class
Whenever there is multiple processes contending for exclusive access to multiple locks, there is the possibility of deadlock.	TRUE
This is the least restrictive access modifier. Methods and attributes that use the public modifier can be accessed within your current class and by all other classes.	Public
It belong to the class instead of a specific instance, this means you can access it without object.	The correct answer is:
It has the static keyword as a prefix in its declaration. Its definition occurs only inside a class and outside any function.	Class variables
Feature of java that means, organizing our software as a combination of different types of objects that incorporates both data and behavior.	Object-Oriented
If you just want to achieve basic functionality of a thread you can simply implement Runnable interface and override run() method.	TRUE
The JDK 1.0 was released on	January 1996
It is where you handle the exceptions, this block must follow the try block.	Catch block
An abstract class can be instantiated.	FALSE
A class can have multiple Static blocks, which will execute in the same sequence in which they have been written into the program.	TRUE
The JDK 1.1 was released on	February 1997
Facility to allow multiple activities within a single process.	The correct answer is:
A popular general-purpose programming language and computing platform. It is fast, reliable, and secure.	Java
The class that extends the features of another class is known as _____________?	B and C
It is common to all the instances (or objects) of the class because it is a class level variable.	Static variable
It checks the code fragments for illegal code that can violate access right to objects.	Bytecode Verifier
A class which is not abstract is referred as.	Concrete class
We can instantiate an interface in java.	FALSE
Interface provides full abstraction as none of its methods have body.	TRUE
The JAVA SE 12 was released on	March 2019
Variables that is constants. This variable cannot be change once it is initialized.	Final variable
A final method cannot be overridden.	TRUE
Java is an Object-Oriented programming language developed by ______________ in the early 1990s	James Gosling
A final variable that is not initialized at the time of declaration is known as _______________.	Blank final variable
A class derived from the abstract class must implement all those methods that are declared as abstract in the parent class.	TRUE
It determines what resources a class can access such as reading and writing to the local disk.	Security Manager
It is the on-disk part of Java that creates the JVM.	JRE
It is a lightweight Graphical User Interface (GUI) toolkit that includes a rich set of widgets. It includes package lets you make GUI components for your Java applications, and It is platform independent.	Java swing
If you declare an abstract method in a class then you don't need to declare the class abstract as well.	FALSE
It is a fully functioning window with its title and icons.	Frame
All variables declared in an interface are by default final.	TRUE
Interface which is declared inside another interface or class.	Nested interface
The same method in child class which is already present in the parent class.	Method Overriding
The following are the advantages of Inheritance except.	Allows you to define one interface
The class whose properties and functionalities are use (inherited) by another class is known as _______________?	Parent Class
The thread ends when it comes when the run() method finishes its execution.	TRUE
Making a member static can access it without object.	TRUE
Finally is a method that is called by JVM during garbage collection.	FALSE
Classes that can have other components on it.	Container classes
Using threads increases the responsiveness of GUI applications.	TRUE
We use thread to perform asynchronous or background processing	TRUE
An exception in the finally block, behaves exactly like any other exception.	TRUE
The variables declared in an interface are public, static & final by default.	TRUE
If no exception occurs in try block then the catch blocks are completely ignored.	TRUE
An abstract class must be extended and in a same way abstract method must be overridden.	TRUE
Use to define the visibility of classes, methods, and attributes.	Access Modifier
It contains all the crucial statements that must be executed whether exception occurs or not.	Finally block
Static variables are also known as ______________________?	Class variables
You can not have abstract method in a concrete class.	TRUE
The super keyword refers to the ______________, immediately above of the calling class in the hierarchy.	Super Class
An interface can implement another interface	FALSE
An abstract class has no use until unless it is extended by some other class.	TRUE
Local final variable must be initializing during declaration.	TRUE
Part of the Java Runtime Environment(JRE) which is used to load Java classes into the Java Virtual Machine dynamically.	Classloader
The J2SE 5.0 was released on	September 2004
This is the most restrictive and most commonly used access modifier. If you use the this modifier with an attribute or method, it can only be accessed within the same class.	Private
When a thread is invoked, there will be one path of execution.	FALSE
We can change the value of a final variable.	FALSE
It is a good practice to name final variable in all CAPS.	TRUE
It is a pure container and is not a window in itself. The sole purpose of a it is to organize the components on to a window.	Panel
It is the default layout manager for every JPanel. It simply lays out components in a single row one after the other.	Java FlowLayout
It can be thought of like a pop-up window that pops out when a message has to be displayed. It is not a fully functioning window like the Frame.	Dialog
finalize is used in .	FALSE
The J2SE 1.3 was released on	May-00
If method parameters are declared final then the value of these parameters cannot be changed.	TRUE
It can access class variables(static variables) without using object(instance) of the class.	Static methods
Attributes and methods with the access modifier protected can be accessed within your class, by all classes within the same package, and by all subclasses within the same or other packages.	Protected
Nested interface are also known as?	Inner interface
It facilitates you to carry the Java bytecode to any platform.	Portable
If an exception occurs in try block then the control of execution is passed to the corresponding catch block.	TRUE
Used to layout the GUI java components inside a container.	Java Layout Manager
A constructor can be declared as final.	FALSE
A class that is declared using abstract keyword.	Abstract class
The process by which one class acquires the properties (data members) and functionalities(methods) of another class.	Inheritance
Allows developers to create Java programs that can be executed and run by the JVM and JRE.	JDK
Java is a write once, runObject Oriented Programming anywhere language.	Object-Oriented
The J2SE 1.4 was released on	February 2002
It is a Java platform component that executes programs.	JVM
If a child does not implement all the abstract methods of abstract parent class, then the child class must need to be declared abstract as well.	TRUE
A final class can be inherited.	FALSE
Proper co-ordination is required between threads accessing common variables.	Risk factor
It is used for initializing the static variables.	Static Block
A finally block must be associated without a try block.	FALSE
Places components in up to five areas: top, bottom, left, right, and center. It is the default layout manager for every java JFrame.	Java BorderLayout
It is the more sophisticated of all layouts. It aligns components by placing them within a grid of cells, allowing components to span more than one cell.	Java GridBagLayout
The name Java originates from a sort of ____________	Expresso Bean
The J2SE 1.2 was released on	December 1998
The class that implements interface must implement all the methods of that interface.	TRUE
Class that implements any interface must implement all the methods of that interface, else the class should be declared abstract.	FALSE
It is a blueprint for objects to follow a specific schema defined in the class.	Class
The superclass constructor can be called explicitly using the ____________________ ?	Super Keyword
Abstract method has no body.	TRUE
These are variables which have declarations inside methods, constructors or blocks.	Local variables
One of the OOPs feature that allows us to perform a single action in different ways.	Polymorphism
is built on top of the Java Abstract Widget Toolkit (AWT), an older, platform dependent GUI toolkit.	Java library
Feature of java that is very easy to learn, and its syntax is simple, clean and easy to understand.	Simple
Have methods and variables just like the class but the methods declared in it are by default abstract.	Interface
Statement used to close all the open streams in a program.	close()
A set of processes or threads is said to be deadlocked when each is waiting for an action that only one of the others can perform.	TRUE
Extending an interface can implement another interface.	TRUE
It contains set of statements where an exception can occur.	Try block
Sub class is invoked when we create the object of subclass, it by default invokes the default constructor of super class.	Constructor
A try-finally block is not possible without catch block.	FALSE