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.
There are hundreds of pre-written libraries in java, which you can use in your programs to make it easy to read and small. Matter of fact you don't have to write big codes just import this library and use their methods or class whatever you need.
for example, you want use LinkedList in java. So instead of writing whole corner cases code. You can just import LinkedList from util package and use it.
import java.util.LinkedList;
SP.
import java.io define the declarations (not statements) are essentially short-hand enabler at the source code level: it allows you to refer to a type or a static member using a single identifier
java.io here java is package and io is the package folder which is define after under the java folder
The "import" keyword is used to include the sources of other Java classes and packages in the current class so that we can use those classes.
Ex: To use an ArrayList in your class you must have the below import statement in your class.
import java.util.ArrayList;
You can also do
import java.util.*;
In this case, all classes inside the java.util package will be included in your class.
Note: If this java.util has any sub packages you must specifically include them.
import java.* does not import everything. It only imports classes that are directly inside the package java. All other packages must be explicitly imported
It imports the awt package which contains all the essential tools for drawing using java, including Color class, and the various visual Component Classes.
The "import" statement basically makes the classes in the specified package available, for the file in which it is used.
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.*;
A header file in C is used to import the features of parent classes in our class. The same feature is provided by the import statement in Java hence the header files are not used.
I highly recommend you to use javax.swing.JFrame
import package_name.*;where package_name is your package name.by using this syntax you can import an entire package.
package thisPackage; import otherPackage.*; class myClass { }
using servlets, php, and database we can connect import codes into java
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.*;
A header file in C is used to import the features of parent classes in our class. The same feature is provided by the import statement in Java hence the header files are not used.
I highly recommend you to use javax.swing.JFrame
You can import a package as many times as you want in Java. The compiler will just ignore any duplicates.
Jython was first developed to replace 'C' with 'Java'. It is a cross-platform operational system, combining both Python and Java. Jython can use and/or import any Java class around.
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.
import package_name.*;where package_name is your package name.by using this syntax you can import an entire package.
package thisPackage; import otherPackage.*; class myClass { }
The purpose of the include key word is to include the functionality of some class into the class under consideration. The same feature is provided in Java using the import statement. Hence there is no use of the include key word 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.
yes