why we use * in java ?

Question

ex-import java.io.*;
like this why we use *

Answer 1

To import everything from Java package

eg.
import java.util.*; //imports everything in java.util
import java.util.Scanner;//imports only Scanner from java.util

Answer 2

thnks a lot

Answer 3

to define a class we use sometimes we need to import that java file for execution before starting the programming. If we want to create a program to take our input and show the output we use "import java.io.*;" which helps the programming for input and output value of the program.* is used to import all the files from the package.