Provider values() method in Java with Examples

Last Updated : 25 May, 2021

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

// 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 property 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

// 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 property 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

Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.

My Personal Notes

Related Articles

Provider values() method in Java with Examples

Java

Java