Java Code: Extract Public Key from Base64 Encoded X.509 Certificate

The code you provided is not syntactically correct. Here is the corrected version: \n\njava\nBufferedInputStream in = new BufferedInputStream(new ByteArrayInputStream(Base64.decodeBase64(paychamellser.getaphey0())));\nX509Certificate x509 = (X509Certificate) CertificateFactory.getInstance("X.509").generateCertificate(in);\nPublicKey publicKey = x509.getPublicKey();\n\n\nIn this code, it first creates a BufferedInputStream to read from a ByteArrayInputStream that is created from decoding a Base64 encoded string (paychamellser.getaphey0()). Then, it generates an X509Certificate from the input stream using CertificateFactory.getInstance("X.509").generateCertificate(in). Finally, it gets the public key from the generated certificate using x509.getPublicKey().