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Package class
The package class provides methods to get information about the specification and implementation of a package. It provides methods such as getName(), getImplementationTitle(), getImplementationVendor(), getImplementationVersion() etc.
Example of Package class
In this example, we are printing the details of java.lang package by invoking the methods of package class.
class PackageInfo{ public static void main(String args[]){ Package p=Package.getPackage("java.lang"); System.out.println("package name: "+p.getName()); System.out.println("Specification Title: "+p.getSpecificationTitle()); System.out.println("Specification Vendor: "+p.getSpecificationVendor()); System.out.println("Specification Version: "+p.getSpecificationVersion()); System.out.println("Implementaion Title: "+p.getImplementationTitle()); System.out.println("Implementation Vendor: "+p.getImplementationVendor()); System.out.println("Implementation Version: "+p.getImplementationVersion()); System.out.println("Is sealed: "+p.isSealed()); } } Output:package name: java.lang Specification Title: Java Plateform API Specification Specification Vendor: Sun Microsystems, Inc. Specification Version: 1.6 Implemenation Title: Java Runtime Environment Implemenation Vendor: Sun Microsystems, Inc. Implemenation Version: 1.6.0_30 IS sealed: false
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