Package in java

 

 A java package is a group of similar types of classes, interfaces and sub-packages.

 

Step 1: Go to C: drive and create a folder named p

Step 2: Go to run, type cmd and on command prompt go to folder p

Step 3: Type simple.java program in folder p as below

package package1; 
public class simple
{ 
           public static void main(String args[])
          { 
                   System.out.println("Welcome to package"); 
          } 
}   

Step 4: Compile the program using javac -d . simple.java

            ( You can see the folder package1 is automatically created.

               and you can see the CLASS file is also created and saved in package1 folder)

Step 5: Execute the program using    java package1.simple

            Output is as below:  Welcome to package