Answers for "java package example"

java package

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

Package in java can be categorized in two form, built-in package and user-defined package. 

There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc.

Advantages Of Packages
Java package is used to categorize the classes and interfaces so that they can be easily maintained.
Java package provides access protection.
Java package removes naming collision.
Example
//save as Simple.java  
package com.revature;  
public class Simple{  
 public static void main(String args[]){  
    System.out.println("Welcome to package");  
   }  
}

Accessing a package from other packages
There are three ways to access the package from outside the package.

import package.*;
import package.classname;
fully qualified name.

java packages example

// import <package>			-> Imports the whole package
// import <package>.<class> -> Imports a certain class
import java.util.Scanner;

how to declare a package in java

package

java package

package mypack;
public class employee 
{
    String empId;
    String name; 
}

java package

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

Package in java can be categorized in two form, built-in package and user-defined package. 

There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc.

Advantages Of Packages
Java package is used to categorize the classes and interfaces so that they can be easily maintained.
Java package provides access protection.
Java package removes naming collision.
Example
//save as Simple.java  
package com.revature;  
public class Simple{  
 public static void main(String args[]){  
    System.out.println("Welcome to package");  
   }  
}