El método entrySet() de la clase java.security.Provider se utiliza para devolver una vista de conjunto no modificable de las entradas de propiedad contenidas en este proveedor.
Sintaxis:
public Set<Map.Entry> entrySet()
Valor devuelto: este método devuelve una vista establecida de las asignaciones contenidas en este mapa
A continuación se muestran los ejemplos para ilustrar el método de elements() :
Ejemplo 1:
// Java program to demonstrate
// entrySet() 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
Set<Map.Entry<Object, Object> > set;
// getting unmodifiable Set view of the property entries
set = provider.entrySet();
// Creating the object of iterator to iterate set
Iterator iter = set.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);
}
}
}
Producción:
unmodifiable Set view : Value is : Alg.Alias.Signature.SHA1/DSA=SHA1withDSA Value is : Alg.Alias.Signature.1.2.840.10040.4.3=SHA1withDSA Value is : Alg.Alias.Signature.DSS=SHA1withDSA Value is : SecureRandom.SHA1PRNG ImplementedIn=Software Value is : KeyStore.JKS=sun.security.provider.JavaKeyStore$DualFormatJKS Value is : Alg.Alias.MessageDigest.SHA-1=SHA Value is : MessageDigest.SHA=sun.security.provider.SHA Value is : KeyStore.CaseExactJKS=sun.security.provider.JavaKeyStore$CaseExactJKS Value is : CertStore.com.sun.security.IndexedCollection ImplementedIn=Software Value is : Signature.SHA256withDSA=sun.security.provider.DSA$SHA256withDSA
Ejemplo 2:
// Java program to demonstrate
// entrySet() method
import java.security.*;
import java.util.*;
public class GFG1 {
public static void main(String[] argv) throws Exception
{
// Declaring int value i
int i = 10;
try {
// creating the object of KeyPairGenerator
KeyPairGenerator sr = KeyPairGenerator.getInstance("DSA", "SUN");
// getting the Provider of the KeyPairGenerator sr
// by using method getProvider()
Provider provider = sr.getProvider();
// Declaring the variable of set<Map> type
Set<Map.Entry<Object, Object> > set;
// getting unmodifiable Set view of the property entries
set = provider.entrySet();
// Creating the object of iterator to iterate set
Iterator iter = set.iterator();
// printing the set elements
System.out.println("unmodifiable Set view : \n ");
while (i > 0) {
System.out.println("Value is : " + iter.next());
i--;
}
}
catch (NoSuchAlgorithmException e) {
System.out.println("Exception thrown : " + e);
}
}
}
Producción:
unmodifiable Set view : Value is : Alg.Alias.Signature.SHA1/DSA=SHA1withDSA Value is : Alg.Alias.Signature.1.2.840.10040.4.3=SHA1withDSA Value is : Alg.Alias.Signature.DSS=SHA1withDSA Value is : SecureRandom.SHA1PRNG ImplementedIn=Software Value is : KeyStore.JKS=sun.security.provider.JavaKeyStore$DualFormatJKS Value is : Alg.Alias.MessageDigest.SHA-1=SHA Value is : MessageDigest.SHA=sun.security.provider.SHA Value is : KeyStore.CaseExactJKS=sun.security.provider.JavaKeyStore$CaseExactJKS Value is : CertStore.com.sun.security.IndexedCollection ImplementedIn=Software Value is : Signature.SHA256withDSA=sun.security.provider.DSA$SHA256withDSA
Publicación traducida automáticamente
Artículo escrito por RohitPrasad3 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA