Get Column Privileges

package example.jdbc.privileges;
 
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
 
public class GetColumnPrivilegesOracle {
    public static void main(String[] args) throws Exception {
	Connection conn = null;
 
	conn = getConnection();
	String catalogPattern = conn.getCatalog();
	String schemaPattern = "SYSTEM";
	String tableNamePattern = "HELP";
 
	ResultSet privileges = null;
	DatabaseMetaData meta = conn.getMetaData();
 
	// The '_' character represents any single character.
	// The '%' character represents any sequence of zero or more characters.
	privileges = meta.getTablePrivileges(catalogPattern, schemaPattern, tableNamePattern);
	while (privileges.next()) {
 
	    String catalog = privileges.getString("TABLE_CAT");
	    String schema = privileges.getString("TABLE_SCHEM");
	    String tableName = privileges.getString("TABLE_NAME");
	    String privilege = privileges.getString("PRIVILEGE");
	    String grantor = privileges.getString("GRANTOR");
	    String grantee = privileges.getString("GRANTEE");
	    String isGrantable = privileges.getString("IS_GRANTABLE");
 
	    System.out.println("table name:" + tableName);
	    System.out.println("catalog:" + catalog);
	    System.out.println("schema:" + schema);
	    System.out.println("privilege:" + privilege);
	    System.out.println("grantor:" + grantor);
	    System.out.println("isGrantable:" + isGrantable);
	    System.out.println("grantee:" + grantee);
	    conn.close();
 
	}
    }
 
    public static Connection getConnection() throws Exception {
	String driver = "oracle.jdbc.driver.OracleDriver";
	String url = "jdbc:oracle:thin:@localhost:1521:databaseName";
	String username = "system";
	String password = "password";
	Class.forName(driver); // load Oracle driver
	return DriverManager.getConnection(url, username, password);
    }
 
}