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Java packages can be imported using the import key word in java.
There are two ways of importing java programs.
1. you can import the class along with the fully classified class name. Ex: import java.lang.String;
2. you can import all classes in a package using the star symbol. Ex: import java.lang.*;
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How do you add import packages to a java program in netbeans?
package thisPackage; import otherPackage.*; class myClass { }
What is the use of import in java?
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.
Import statement in java?
import PackageName.SubPackage.ClassName.SubClass; or import PackageName.SubPackage.*; \\ this will import any class in the package note : it's very simple, consider the packages are like folders, as the are.
Why to use 'import' in java?
The import statement in Java allows to refer to classes which are declared in other packages to be accessed without referring to the full package name. You do not need any import statement if you are willing to always refer to java.util.List by its full name, and so on for all other classes. But if you want to refer to it as List, you need to import it, so that the compiler knows which List you are referring to. Classes from the java.lang package are automatically imported, so you do not need to explicitly do this, to refer to String, for example.
Is it possible to override overloaded methods why?
Yes. Overloaded methods are also Java methods and all Java methods can be overridden.
How do you add import packages to a java program in netbeans?
package thisPackage; import otherPackage.*; class myClass { }
What is the use of import in java?
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.
How many packages in java and show the list?
There are almost 200 packages in the standard J2SE distribution. Please see the related link below detailing the Java API (for Java 7) for a full listing.
What is intrface in java?
interface is a list of methods which implements that interface
Import statement in java?
import PackageName.SubPackage.ClassName.SubClass; or import PackageName.SubPackage.*; \\ this will import any class in the package note : it's very simple, consider the packages are like folders, as the are.
Why to use 'import' in java?
The import statement in Java allows to refer to classes which are declared in other packages to be accessed without referring to the full package name. You do not need any import statement if you are willing to always refer to java.util.List by its full name, and so on for all other classes. But if you want to refer to it as List, you need to import it, so that the compiler knows which List you are referring to. Classes from the java.lang package are automatically imported, so you do not need to explicitly do this, to refer to String, for example.
How do you import others codes in java?
using servlets, php, and database we can connect import codes into java
How do you sort numbers in Java program?
Here's simple example to sort numbers in Java using a List: import java.util.ArrayList; import java.util.Collections; import java.util.List; public class SortTest { public static void main (String[] args) { List<Integer> list = new ArrayList<Integer>(); list.add(100); list.add(1); list.add(24); list.add(3); System.out.println(list); Collections.sort(list); System.out.println(list); } } Running it generates the following output: [100, 1, 24, 3] [1, 3, 24, 100]
What is the use of api in java?
The API is a reference for all predefined classes provided by the java language. This will allow the programmer to utilize the classes into their programs. The API provides packages, classes, methods, constants, etc.
Is it possible to override overloaded methods why?
Yes. Overloaded methods are also Java methods and all Java methods can be overridden.
What is foreign keyword in java?
There is no "foreign" keyword in Java, however, there is a native keyword that declares native methods in a native language, such as C or C++.For full list of keywords in Java see related question.
Import a package second time in Java?
You can import a package as many times as you want in Java. The compiler will just ignore any duplicates.
