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The Java 'this' installation package allows one to create installation programs for their Java based applications. One can download the program from Java.
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A default package is a package with no name. You can create a Java class without putting package name on top of the code. This class is included in the "default package".
Be careful not to be confused with java.lang, which is a package that contains Java's fundamental classes and get's imported by default.
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The java.lang package is automatically imported for you.
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A user defined package is a package outside of the standard Java libraries.
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The java.lang package in Java is automatically imported for you.
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You can import a package as many times as you want in Java. The compiler will just ignore any duplicates.
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Yes it is possible to draw in java by using AWT package.
or by using javax package.
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java.lang defines the core Java language, without which all of Java would fail to operate. It is therefore the default package that must be used with every program that will run Java, as it contains all of the logic necessary for exception handling, threads, classes that represent primitives (and their associated logic), and so on.
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The import keyword in Java is used to tell the Java compiler where to find different classes and packages.
java.util.Date is the location of the Date class: Date is a member of the util package, which is a member of the java package.
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java.lang.reflect package has the ability to analyze itself at runtime. This is called Java reflection.
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A package is a mechanism for grouping related classes into a "group", called package. The package keyword identifies a file as belonging to a certain package.
Example: Put the following at the beginning of your Java source code:
package samplePackage;
A package is a mechanism for grouping related classes into a "group", called package. The package keyword identifies a file as belonging to a certain package.
Example: Put the following at the beginning of your Java source code:
package samplePackage;
A package is a mechanism for grouping related classes into a "group", called package. The package keyword identifies a file as belonging to a certain package.
Example: Put the following at the beginning of your Java source code:
package samplePackage;
A package is a mechanism for grouping related classes into a "group", called package. The package keyword identifies a file as belonging to a certain package.
Example: Put the following at the beginning of your Java source code:
package samplePackage;
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Anything that isnt in the java.lang package or local package needs to be imported
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I believe you are asking about BufferedReader.
It is in java.io package.
java.io.BufferedReader;
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with the package name
syntax: <package name>
with the interface name.
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You would use the Java Development Kit (JDK).
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JDBC stands for Java Data Base Connectivity. As the name suggests the package is reposnisble for database connectivity. It is a standard API defined for database access.
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import package_name.*;
where package_name is your package name.
by using this syntax you can import an entire package.
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Because, the java.lang package contains some of the most commonly used classes and utility functions of Java. As a result, almost all classes will be using some or all of those features. So, the creators of Java automatically imported this package in every class that you create to avoid the explicit import action for java developers
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it's a collection of classes is called a package .its a collection classes and interfaces which provides high level of security
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You can easily create Java packages with a few steps.
# Create a set of classes that you want to be in your package.
# Use the package keyword at the top of each of these classes to declare which package they're in. # Organize your source files such that a package name corresponds to a directory name. For instance, the JPanel class has a "package javax.swing;" declaration in the source file, and is located in the javax/swing folder.
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AWT (Abstract Window Toolkit) is a top-level Java package. Listing out the hundreds or thousands of methods would be a waste of effort.
See the related link below for the Java documentation on the AWT package.
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AWT is a Java package for creating graphical user interfaces. JavaScript is a completely unrelated programming language.
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There is little endian byte ordering support in Java found in the java.nio package (see ByteBuffer and ByteOrder class).
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java.io
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None. The Exception class is part of the java.lang package, which is automatically imported into all Java classes.
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No, if a program needs Java it'll specify that it does in the installer package for the program or on the website for the program or a section usually called "Requirements" for a specific program.
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java.awt is a standard package of Java. It is a GUI(Graphical User Interface) package, which has classes in it such as Frame, Panel, and Button. Most of the package was later replaced with the javax.swing package, which has most of the same classes, only with a J prepended to them (JFrame, JPanel, JButton). However the java.awt package still includes some event handlers that are considered standard in java (java.awt.event).
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1.user defined packages
2.predefined packages
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A package is used to group related classes. Each class in the group is identified by the "package" keyword, followed by some keyword for the group.
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package - only one
imports - unlimited. You can have as many import statements in your class as you want.
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They end with an extension .java
Test.java would be a java source file.
The contents of Test.java could be
package xyz;
import java.util.*;
public class Test {
...
...
..
.
.
}
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First, it's an error; it should be import java.util.*;
That will make all classes in the java.util package availabe for use in your Java class definition. Java is divided up into packages. Each package can hold classes and other packages. java.util is a package.
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There is no such thing as an access specifier in Java. There are access modifiers.
The default access modifier if unspecified is to allow access to classes in the current package only, except within an interface where the default is 'public'
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Packages in Java are used to group classes that are for a similar purpose. For example all Data Access components may be grouped into a package called "dao"
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Because, we dont have the package which we want perform the specific task in the lib. Thatz why we need to create packages own and importing it.
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A Java package is like our shopping bag inside which numerous items that we purchased today in the mall are present. Similarly a java package is a bag like thing which contains multiple java classes that are coded inside it. Usually we package classes to keep them organized and to avoid confusions in cases where there are multiple classes with the same name in the application.
For ex: I can write a class that does string operations named "ModifyStrings" and have methods inside them. Unfortunately my friend in my project too can write a class with the same name. so packages come to our rescue. I will put my class inside com.anand.code and he will put com.ajay.code so we both can have our classes.
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package thisPackage;
import otherPackage.*;
class myClass {
}
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Only the original naming person or team can answer this one 100% correctly.
javax is an extension package (to java package), some would say it is the extra. Either way, this package is optional, an auxiliary one. New packages are usually introduced as javax.something, then perhaps promoted as java.something in the latter edition if it deemed to be as a part of the core.
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Actually, it is both.
Visual Basic is a Microsoft only programming language. In order to run programs written in VB though, you may need the VB runtime library as a package DLL even if you don't use the language itself.
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Let's take this in two parts.
First, why is Java appropriate for web-based applications. There are Java plugins for most major web browsers, and Sun's Java comes with those plugins built into the install package. In this respect, it is easy to get your application online.
Second, why is Java appropriate for client-server applications. Java has an extremely good networking package. The built in support for TCP and UDP communication makes a client-server application a work of minutes, rather than hours.
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Core Java and J2SE are the same thing, which is the set of classes to be found in the rt.jar package. The classes were just given different names at different stages of the continued revisions to the Java Runtime Environment.
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The fundamental structure of any Java programme should look like:
[package declarations]
[import statements]
[class declaration]
An example is given below:
package abc;
import java.lang;
class Demo {
public static void main(String[] args) {
Sytem.out.println("Hello! World");
}
}
//The file containing this class must be named Demo.java
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You have a Java error in one of your Java subroutine calls. It looks as though an external library has not been specified.
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