Java Programming

Java supports exception handling by its try catch constructs. Exceptions are conditions which the JVM or applications developed...

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JPanel is a general purpose container used to organize and manage the groups of related components. It is a light weight...

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JRE includes (JVM ) java virtual machine and some other library files. That runs a java application. JVM - understand the...

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Use concatenation. When adding strings, the + sign concatinates. Eg: String one = "This is a strin"; one = one +'g'; ...

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j2ee is the old naming of the java enterprise edition, in the early history java was called simply java afterward sun created a...

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import java.io.*; class ShopReceipt { protected static void main()throws IOException { BufferedReader in=new...

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import java.io.*;class kaprekar { public static void main(String args[])throws IOException { BufferedReader br=new...

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'Main' is not at all associated with the return type. Specifying a function as main means that the function is to be executed...

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Bubble sort will be able to sort the items lexicographically, if you first assign the strings a relative value. The way strcmp in...

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He is the father of the Java programming language.

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The advantage of using a platform independent language is that a program designed using such platform is independent on the...

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s

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Data hiding is one of the important aspects of a class. Data hiding means to hide the members of the class and providing the...

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It can have as many as you want. It allows you to catch very specific exceptions.

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An Array is a data type that stores multiple values in one variable. It can be thought of as a bunch of values that are related...

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The rules of accessibility are governed by the access modifiers. An Access Modifier is a key word in java that determines what...

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It means that you have tried to use a method which doesn't exist.

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constructor

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A. Pretest LoopPage 169Tony Gaddis: Textbook for Programming Logic & Design

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Among the primitive data types - float and double are the largest. Data TypeBits UsedMinimum ValueMaximum Valuebyte8-2727 -...

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• Instance variables and objects live on the heap. • Local variables live on the stack. Let's take a look at a Java...

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I'll answer assuming you're using Windows based machines. The absolute easiest way is to buy a Router or Switch from a company...

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I think the reason this question has gone unanswered is it is not clear on what you want to do. So I'm going to guess that you...

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Java is pure object oriented programming language than c++, it uses the concepts of Classes, Objects, Inheritance, Polymorphism....

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an Object is an instance of the Class for ex: Integer i = new Integer (1); i is an object of the Class Integer. of courses...

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Languages like C, Pascal, Basic do not use classes, polymorphism, etc, they promote functional style of programming. Languages...

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Classes in Java inherit constructors from their parent classes. If you don't explicitly define a parent class, then Object is...

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That one is called "Java Virtual Machine".

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Yes. If you simply write: x = new SomeClass(); y = x; will make the variable y refer to the same object that variable x is...

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Jar files are basically zip files, but they are supposed to store java classes, they have nothing to do with C.

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Yes. Overridden methods have the same signature whereas Overloaded methods have a different signature

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GUI stands for Graphical User Interface. The web browser in which you are viewing this website too can be considered a GUI

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A default constructor is the one with no arguments.Heres a sampleclass c{int a,b;c() //Constructor 1{a=2;b=1;}c(int x, int y)...

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This depends on your handset. Certain devices are java-enabled, older ones are not.

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//call this method inputing the string you want to testprivate void palindromeTest(String input){String output = """+input+"" ";...

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The important features of Java are the ones that relate to the object oriented concepts like: a. Inheritance b. ...

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Yes, since it can only play in some computers and not all computers can read it. Every Java application needs a minimum system...

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In object oriented programming language, it is possible to override classes. and the advantage over this is we can just show the...

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Below is a simple example- the function of the code below is to print out the words "Hello" "world" to the screen. public class...

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No. An abstract method must be overriden in an subclass. If the method is final then it can't be edited.

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Because that is how Java file naming conventions are designed. The rules for naming files in Java are as follows: • There can...

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Tokenizing is the process of taking big pieces of source data, breaking them into little pieces, and storing the little pieces in...

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The static modifier tells the system that this particular variable belongs to the class and does not belong to any specific...

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Two methods can have the same name provided their signature is different. Ex: public int add(int a, int b){ ... } public int...

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Yes. There is no specific order in which the compiler expects methods to be present. As long as the method is inside the class it...

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A reference variable is used to refer to (or access) an object. A reference variable is declared to be of a specific type and...

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Remember that the Vector class is a subclass of AbstractList. Also remember that the Collections class has an efficient sorting...

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Over abstraction, in computer programming terms, means that you use inheritance too often in your code. If you look for any two...

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Because, they are not methods to have a return type. The constructor by default creates an object of the class and that's all. It...

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A class file is a compiled .java file and cannot be executed without jdk or java. They are often executed with .bat files in...

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This is a way to organize files when a project consists of multiple modules. It also helps resolve naming conflicts when...

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Double is more precise than float. The 4 bytes saved on a float are usually not very relevant. However, if you need to save large...

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An Access Modifier is a key word in java that determines what level of access or visibility a particular java variable/method or...

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Yes, in some way it's similar.

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a class has only two members data member and member functions

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The exact same way you instantiate a class from any of the various Java libraries: by using the 'new' keyword. i.e MyClass A =...

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You cannot override a method inside the same class. If you do that, it is called Overloading. Experienced java programmers can...

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final is a keyword.it can be used for three posibilities. they are ->we can assign the variable as final. to declaring the...

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A (java) class file was not be made to be opened and modified by hand for the users. A class file is the resulting byte code of...

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Imagine you want to save the state of one or more objects. If Java didn't have serialization, you'd have to use one of the I/O...

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C# and Java have many similaries. If you learn one, you won't have much of a problem learning the other.

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method invoking refers to the action in which we call a Java method from within another java method or class. Method invocation...

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Implicit casting is done automatically by the compiler and virtual machine. Explicit casting is needed to convert types of data...

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It is possible in JDK 1.5 and above. In JDK 1.4, you also cast the Float value into float value by using casting. For exampe in...

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Core Java has to do with the basic package of Java objects that are typically used for general desktop applications. These...

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1. Single Inheritance A Scenario where one class is inheriting/extending the behavior of just one super class. Ex: public class...

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You are talking about the implementation point view of Abstract class and the interface. Let's go. 1. Interface helps Multiple...

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Abstract is not a datatype but a modifier. Abstract can be used in 2 places:Methods: If a method is termed abstract it means that...

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It is used to convert the value of one datatype into a value of another datatype. Example- Integer.parseInt(in.readLine); It...

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to initialise a class..

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Java is a OOP language and it is not a pure Object Based Programming Language. Many languages are Object Oriented. There are...

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"Overloading" a function means that you have multiple functions with the same name, but different signatures. The signature of a...

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Data abstraction provides the skeleton or templates. That is it has no actual implementation.

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As there are more than one JVM implementations, there is not a single language used to implement them all. Off the top of my...

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NO full form of java. just it stands for hot and aromatic coffee.It is just an abstract name that the devlopers gave.

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Inheritance is an object oriented feature supported by Java wherein the features of one Java class can be inherited/made...

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I will assume that you mean in a broad spectrum in this answer. Java is intended to be a cross-platform full programming...

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Yes.

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First of all, let's assume that by "lint" you mean "init." There are two methods called at the beginning of an applet's...

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sometimes there are situations where the program is vary long which can make error debugging a long process so java provides a...

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By using Depth First Search or Breadth First search Tree traversal algorithm we can print data in Binary search tree.

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not an actual code line you need to redefine the script

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Yes - In every machine that has the Java Runtime Environment (JRE) installed, the JVM will be available.

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String tokenizer is a utility feature in Java language that is used to split a string into multiple pieces based on a delimiter....

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arguments

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Multilevel Inheritance A Scenario where one class is inheriting/extending the bahavior of another class which in turn is...

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Depends on the language. For C, no you don't. You can type blank brackets (int Arr[]) when declaring the array, or you can just...

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taking an introductory Computer Science Class, this program that I wrote recently may help you. Basically it asks the user to...

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Java uses a code-compiler, which does not create a machine-code, like normal Windows programs, but a byte-code, which the Java...

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my self is a computer teacher,from my point of view ,some project topics are: BANKINGONLINE QUIZBILL Preperationticket...

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The static keyword associated with a method or a variable in java specifies that the entity belongs to the class and not any...

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Follow the backslash with another backslash: System.out.println("\\ \" \\"); will display \ " \ on the screen.

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The speed difference is not usually significant, but the slight performance advantage goes to Servlets because, JSPs get...

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Implement this method: public static boolean isDivisible(int a, int b) { if(a % b == 0) { return true; } else { return...

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An Access Modifier is a key word in java that determines what level of access or visibility a particular java variable/method or...

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VB.NET is used for e-banking.It is the language in which all the options are used just by tool box that is at the right hand side...

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A subclass in Java is a class that inherits features from a parent class. class Car { public void goForADrive() { ...

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Java is an object-oriented computer programming language that is used for application as well as system software development. It...

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No. Once a thread is stopped you cannot restart it.

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We can't instantiate both interfaces and abstract classes.The only one difference between them is that an interface can't contain...

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