How do we create packages in Java?

Question

Everything about packages in Java

Answer 1

Visualize this before you read further
let's say you have a folder named "xyz". In this "xyz" folder you have two things : Main.java file and a folder named "abcd". Inside this "abcd" folder there is a A.java file.
"xyz" -> Main.java
"xyz" -> "abcd" -> A.java

Now a package is a collection of classes. In the above example "abcd" is the package which contains A.java which in turn contains classes.

user-defined packages are created using the package keyword followed by the package name
where package name is nothing but the folder name

classes of a package are imported using the import keyword

eg)//A.java
package abcd;
public class A
{
public void display()
{
System.out.print("BHARTI ANIL PATEL");
}
}

//Main.java
import abcd.A;
public class Main
{
public static void main(String args[])
{
new A().display();
}
}

Answer 2

Ahaaa, now I get some idea about this. Thank you!