What is the use of import in java?

Answer 1

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.

Answer 2

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.

Answer 3

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

Answer 4

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

Answer 5

It imports the awt package which contains all the essential tools for drawing using java, including Color class, and the various visual Component Classes.

Answer 6

The "import" statement basically makes the classes in the specified package available, for the file in which it is used.