28. Package Class In Java


✔ JAVA CHAPTERS:-

1. Introduction to Java
2. Features of Java
3. Java Virtual Machine
4. D/F B/W JVM, JRE, JDK
5. Java Data Types
6. Java Programs
7. Setting Java Path
8. OOPs Concepts
9. Object & Class In Java
10. OOPs Continued
11. Encapsulation & Polymorphism
12. Method Overloading
13. Method Overriding
14. Dynamic Method Dispatch
15. Association In Java
16. Inheritance in Java
17. Aggregation in java
18. Command Line Argument
19. Execute Command Line
20. Read Input From Command Line
21. Abstract Class In Java
22. Interface in Java
23. Cutom Marker Interface
24. Constructor In Java
25. Package in Java
26. Acess Modifier In Java
27. Static Import In Java
28. Package Class In Java
29. This Keyword
30. Instance Intializer Block
31. Super Keyword
32. Static Keyword
33. Final Keyword



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Package Class In Java    

Package class: 

Package class provides the information about a package like package name, implementation title etc.

Example:

/**
 * This class is used to show use of Package class.
 * @author java tutorial point
 */
public class Test {
       public static void main(String args[]){
               Package package1=Package.getPackage("java.lang"); 
               System.out.println("package name = "
                                        +package1.getName()); 
               System.out.println("Specification Title = "
                           +package1.getSpecificationTitle()); 
               System.out.println("Specification Vendor = "
                           +package1.getSpecificationVendor()); 
               System.out.println("Specification Version = "
                           +package1.getSpecificationVersion());  
               System.out.println("Implementaion Title = "
                           +package1.getImplementationTitle()); 
                }
}

Output:

package name = java.lang
Specification Title = Java Platform API Specification
Specification Vendor = Oracle Corporation
Specification Version = 1.7
Implementaion Title = Java Runtime Environment

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