Provider values() method in Java with Examples
The values() method of java.security.Provider class is used to return an unmodifiable Collection view of the property values contained in this provider.
Syntax:
public Collection<Object> values()
Return Value: This method returns a collection view of the values contained in this map.
Below are the examples to illustrate the values() method:
Example 1:
// Java program to demonstrate // values() method import java.security.*; import java.util.*; public class GFG1 { public static void main(String[] argv) { // Declaring int value i int i = 10 ; try { // creating the object of Signature Signature sr = Signature.getInstance( "SHA1withDSA" ); // getting the Provider of the Signature sr // by using method getProvider() Provider provider = sr.getProvider(); // Declaring the variable of set<Map> type Collection<Object> value; // getting unmodifiable Set view of the prperty value value = provider.values(); // Creating the object of iterator to iterate set Iterator iter = value.iterator(); // printing the set elements System.out.println( "unmodifiable Set view : \n " ); while (i > 0 ) { System.out.println( "Value is : " + iter.next()); i--; } } catch (NoSuchAlgorithmException e) { System.out.println( "Exception thrown : " + e); } } } |
Output:
unmodifiable Set view : Value is : SHA1withDSA Value is : SHA1withDSA Value is : SHA1withDSA Value is : Software Value is : sun.security.provider.JavaKeyStore$DualFormatJKS Value is : SHA Value is : sun.security.provider.SHA Value is : sun.security.provider.JavaKeyStore$CaseExactJKS Value is : Software Value is : sun.security.provider.DSA$SHA256withDSA
Example 2:
// Java program to demonstrate // values() method import java.security.*; import java.util.*; public class GFG1 { public static void main(String[] argv) { // Declaring int value i int i = 10 ; try { // creating the object of SecureRandom SecureRandom sr = SecureRandom.getInstance( "SHA1PRNG" ); // getting the Provider of the SecureRandom sr // by using method getProvider() Provider provider = sr.getProvider(); // Declaring the variable of set<Map> type Collection<Object> value; // getting unmodifiable Set view of the prperty value value = provider.values(); // Creating the object of iterator to iterate set Iterator iter = value.iterator(); // printing the set elements System.out.println( "unmodifiable Set view : \n " ); while (i > 0 ) { System.out.println( "Value is : " + iter.next()); i--; } } catch (NoSuchAlgorithmException e) { System.out.println( "Exception thrown : " + e); } } } |
Output:
unmodifiable Set view : Value is : SHA1withDSA Value is : SHA1withDSA Value is : SHA1withDSA Value is : Software Value is : sun.security.provider.JavaKeyStore$DualFormatJKS Value is : SHA Value is : sun.security.provider.SHA Value is : sun.security.provider.JavaKeyStore$CaseExactJKS Value is : Software Value is : sun.security.provider.DSA$SHA256withDSA
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