public static AlgorithmParameterGenerator getInstance(String algorithm,
                                                          String provider)
        throws NoSuchAlgorithmException, NoSuchProviderException
    {
        if (provider == null || provider.length() == 0)
            throw new IllegalArgumentException("missing provider");
        Object[] objs = Security.getImpl(algorithm,
                                         "AlgorithmParameterGenerator",
                                         provider);
        return new AlgorithmParameterGenerator
            ((AlgorithmParameterGeneratorSpi)objs[0], (Provider)objs[1],
             algorithm);
    }
public static AlgorithmParameterGenerator getInstance ( String algorithm , String provider ) throws NoSuchAlgorithmException , NoSuchProviderException { if ( provider == null || provider . length ( ) == 0 ) throw new IllegalArgumentException ( "missing provider" ) ; Object [ ] objs = Security . getImpl ( algorithm , "AlgorithmParameterGenerator" , provider ) ; return new AlgorithmParameterGenerator ( ( AlgorithmParameterGeneratorSpi ) objs [ 0 ] , ( Provider ) objs [ 1 ] , algorithm ) ; }
Returns an AlgorithmParameterGenerator object for generating
a set of parameters to be used with the specified algorithm.

<p> A new AlgorithmParameterGenerator object encapsulating the
AlgorithmParameterGeneratorSpi implementation from the specified provider
is returned.  The specified provider must be registered
in the security provider list.

<p> Note that the list of registered providers may be retrieved via
the {@link Security#getProviders() Security.getProviders()} method.

@param algorithm the name of the algorithm this
parameter generator is associated with.
See the AlgorithmParameterGenerator section in the <a href=
"{@docRoot}openjdk-redirect.html?v=8&path=/technotes/guides/security/StandardNames.html#AlgorithmParameterGenerator">
Java Cryptography Architecture Standard Algorithm Name Documentation</a>
for information about standard algorithm names.

@param provider the string name of the Provider.

@return the new AlgorithmParameterGenerator object.

@exception NoSuchAlgorithmException if an AlgorithmParameterGeneratorSpi
implementation for the specified algorithm is not
available from the specified provider.

@exception NoSuchProviderException if the specified provider is not
registered in the security provider list.

@exception IllegalArgumentException if the provider name is null
or empty.

@see Provider