The getSpecificationVersion() method of java.lang.Package class is used to get the version of the specification of this package. The method returns the specification version of the package as a String.
Syntax:
public String getSpecificationVersion()
Parameter: This method does not accept any parameter.
Return Value: This method returns the specification version of the package as a String, if known. Else it returns null
Below programs demonstrate the getSpecificationVersion() method.
Example 1:
// Java program to demonstrate // getSpecificationVersion() method public class Test {
public static void main(String[] args)
{
// returns the Package object
// for this package
Package myPackage
= Package.getPackage("java.lang");
System.out.println(
"Package represented by myPackage: "
+ myPackage.toString());
// Get the specification version of myPackage
// using getSpecificationVersion() method
System.out.println(
"Specification version of myPackage: "
+ myPackage.getSpecificationVersion());
}
} |
Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8 Specification version of myPackage: 1.8
Example 2:
// Java program to demonstrate // getSpecificationVersion() method public class Test {
public static void main(String[] args)
{
// returns the Package object
// for this package
Package myPackage
= Package.getPackage("java.io");
System.out.println(
"Package represented by myPackage: "
+ myPackage.toString());
// Get the name of myPackage
// using getSpecificationVersion() method
System.out.println(
"Specification version of myPackage: "
+ myPackage.getSpecificationVersion());
}
} |
Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8 Specification version of myPackage: 1.8
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Package.html#getSpecificationVersion–