All Core Java Packages | Classes | Interfaces

All Core Java detailed packages

Information Regarding Core Java Built-in packages,Classes and Interfaces,with the help of this you might get idea of Java.

Q) Thread Class

Methods: -

getName()

run()

getPriority()

Sleep()

isAlive()

Start()

join()

 
 

 

Q) Object class

            All other classes are sub classes of object class, Object class is a super class of all other class.

Methods: -

void notify()

void notifyAll()

Object clone()

Sting toString()

boolean equals(Object object)

void wait()

void finalize()

void wait(long milliseconds, int nanoseconds)

int hashcode()

 

 

Q) throwable class

Methods: -

String getMessage()
 
Void printStackTrace()
 
String toString()
 
Throwable fillInStackTrace()

 

Q) Javax.servlet Package

Interfaces
 
Classes
 
Exceptions
 
Servlet
 
GenericServlet
 
ServletException
 
ServletConfig
 
ServletInputStream
 
UnavaliableException
 
ServletContext
 
ServletOutputStream
 
 
 
ServletRequest
 
ServletContextAttributeEvent
 
 
 
ServletResponse
 
 
 
 
 
SingleThreadModel
 
 
 
 
 
ServletContextListener
 
 
 
 
 
ServletContextAttributeListener
 
 
 
 
 
ServletContextInitialization parameters
 
 
 
 
 
ServletRequestAttributeListener
 
 
 
 
 
ServletRequestListner
 
 
 
 
 
Filter
 
 
 
 
 
FilterChain
 
 
 
 
 
FilterConfig
 
 
 
 
 
RequestDispatcher
 
 
 
 
 
 

GenericServlet (C)à  public void destroy();

public String getInitParameter(String name);

public Enumeration getInitParameterNames();

public ServletConfig getServletConfig();

public ServletContext getServletContext();

public String getServletInfo();

public void init(ServletConfig config) throws ServletException;

public void log(String msg);

public abstract void service(ServletRequest req, ServletResponse res)

 

ServletInputStream (C)à public int readLine(byte b[], int off, int len)

 

ServletOutputStream (C)à public void print(String s) throws IOException;

     public void println() throws IOException;

 

ServletContextAttributeEvent (C) à  public void attributeAdded(ServletContextAttributeEvent scab)
                                                           public void attributeRemoved(ServletContextAttributeEvent scab)
                                                        public void attributeReplaced(ServletContextAttributeEvent scab)

 

Servlet (I) à public abstract void destroy();

 public abstract ServletConfig getServletConfig();

 public abstract String getServletInfo();

 public abstract void init(ServletConfig config) throws ServletException;

 public abstract void service(ServletRequest req, ServletResponse res)

 

ServletConfig (I) à   public abstract String getInitParameter(String name);

       public abstract Enumeration getInitParameterNames();

                                 public abstract ServletContext getServletContext();

 

ServletContext (I) à  public abstract Object getAttribute(String name);

public abstract String getRealPath(String path);

public abstract String getServerInfo();

public abstract Servlet getServlet(String name) throws ServletException;

public abstract Enumeration getServletNames();           

public abstract Enumeration getServlets();                

public abstract void log(Exception exception, String msg);

 

ServletRequest (I) à  public abstract Object getAttribute(String name);

 public abstract String getParameter(String name);

 public abstract Enumeration getParameterNames();

 public abstract String[] getParameterValues(String name);

 public abstract String getRealPath(String path);

 public abstract String getRemoteAddr();

 public abstract String getRemoteHost();

 public abstract String getServerName();

 public abstract int getServerPort();

 RequestDispatcher getRequestDispatcher(String path);

 public int getLocalPort();         // servlet 2.4

 public int getRemotePort();      // servlet 2.4

 public String getLocalName(); // servlet 2.4

 public String getLocalAddr();   // servlet 2.4

 

ServletResponse (I) à   public abstract String getCharacterEncoding();              

 public abstract PrintWriter getWriter() throws IOException;

 public abstract void setContentLength(int len);

 public abstract void setContentType(String type);

 

Q) Javax.servlet.Http Package

Interfaces
 
Classes
 
Exceptions
 
HttpServletRequest
 
Cookies 
ServletException
 
HttpServletResponse
 
HttpServlet (Abstarct Class)
 
UnavaliableException
 
HttpSession
 
HttpUtils
 
 
 
HttpSessionListener
 
HttpSessionBindingEvent
 
 
 
HttpSessionActivationListener
 
 
 
 
 
HttpSessionAttributeListener
 
 
 
 
 
HttpSessionBindingListener
 
 
 
 
 
HttpSessionContext (deprecated)
 
 
 
 
 
Filter
 
 
 
 

 

ServletContextListener (I) à public void contextInitialized(ServletContextEvent event)

          public void contextDestroyed(ServletContextEvent event)

           

ServletContextAttributeListener (I)à public void attributeAdded(ServletContextAttributeEvent scab)      

                                                           public void attributeRemoved(ServletContextAttributeEvent scab)

                                                           public void attributeReplaced(ServletContextAttributeEvent scab)

 

ServletContextInitilazation parameters à        

 

Cookies (C) à public Object clone();

public int getMaxAge();

public String getName();

public String getPath();

public String getValue();

public int getVersion();

public void setMaxAge(int expiry);

public void setPath(String uri);

public void setValue(String newValue);

public void setVersion(int v);

 

HttpServlet (C) à public void service(ServletRequest req, ServletResponse res)

     protected void doDelete (HttpServletRequest req, HttpServletResponse res)

     protected void doGet (HttpServletRequest req, HttpServletResponse res)

     protected void doOptions(HttpServletRequest req, HttpServletResponse res)

     protected void doPost(HttpServletRequest req,  HttpServletResponse res)

     protected void doPut(HttpServletRequest req, HttpServletResponse res)

     protected void doTrace(HttpServletRequest req, HttpServletResponse res)

     protected long getLastModified(HttpServletRequest req);

     protected void service(HttpServletRequest req, HttpServletResponse res)

 

HttpSessionbindingEvent (C) à public String getName();

    public HttpSession getSession();

 

HttpServletRequest (I) à  public abstract Cookie[] getCookies();               

  public abstract String getHeader(String name);

  public abstract Enumeration getHeaderNames();

  public abstract String getQueryString();

  public abstract String getRemoteUser();

  public abstract String getRequestedSessionId();

  public abstract String getRequestURI();

  public abstract String getServletPath();

  public abstract HttpSession getSession(boolean create);

  public abstract boolean isRequestedSessionIdFromCookie();

  public abstract boolean isRequestedSessionIdFromUrl();   

  public abstract boolean isRequestedSessionIdValid();

 

HttpServletResponse (I) à public abstract void addCookie(Cookie cookie);           

 public abstract String encodeRedirectUrl(String url);    

 public abstract String encodeUrl(String url);            

 public abstract void sendError(int sc, String msg) throws IOException;

 public abstract void sendRedirect(String location) throws IOException;

 public abstract void addIntHeader(String header, int value);

 public abstract void addDateHeader(String header, long value);

 public abstract void setHeader(String name, String value);

 public abstract void setIntHeader(String header, int value);

 public abstract void setDateHeader(String header, long value);

 public void setStatus();

 

HttpSession (I) à public abstract long getCreationTime();

  public abstract String getId();

  public setAttribute(String name, Object value);

  public getAttribute(String name, Object value);

  public remove Attribute(String name, Object value);

  public abstract long getLastAccessedTime();

  public abstract HttpSessionContext getSessionContext();

  public abstract Object getValue(String name);

  public abstract String[] getValueNames();

  public abstract void invalidate();

  public abstract boolean isNew();

  public abstract void putValue(String name, Object value);

  public abstract void removeValue(String name);

  public setMaxInactiveIntervel();

 
HttpSessionListener (I) à public void sessionCreated(HttpSessionEvent event)

                                                      public void sessionDestroyed(HttpSessionEvent event)

 

HttpSessionAttributeListener (I) à public void attributeAdded(ServletContextAttributeEvent scab)         

                                                        public void attributeRemoved(ServletContextAttributeEvent scab)

                                                        public void attributeReplaced(ServletContextAttributeEvent scab)

 

HttpSessionBindingListener (I) à

                        public void HttpSessionBindingListener.valueBound(HttpSessionBindingEvent event)

                        public void HttpSessionBindingListener.valueUnbound(HttpSessionBindingEvent event)

 

HttpSessionActivationListener (I) à

                        public void sessionDidActivate(HttpSessionEvent event)

                        public void sessionWillpassivate(HttpSessionEvent event)

 

Filter (i) à

                  public void doFilter (ServletRequest request, ServletResponse response, FilterChain chain)

                   public FilterConfig getFilterConfig()

                   public void setFilterConfig (FilterConfig filterConfig)

 

Q) java.sql Package

Interfaces
 
Classes
 
Exceptions
 
Connection 
DriverManager
 
 
 
CallableStatement
 
Date
 
ClassNotFoundException
 
Driver 
TimeStamp
 
Instantiation Exception
 
PreparedStatement 
Time
 
 
 
ResultSet 
Types
 
 
 
ResultSetMetaData 
SQL Exception, SQL Warnings
 
 
 
Statement 
 
 
 
 
DatabaseMetaData
 
 
 
 
 
Array
 
 
 
 
 
ParameterMetaData
 
 
 
 
 
Clob, Blob
 
 
 
 
 
SQLInput, SQLOutput, SQLPermission
 
 
 
 
 
Savepoint
 
 
 
 

 

Q) javax.sql Package

Interfaces
 
Classes
 
Exceptions
 
ConnectionEventListener
 
ConnectionEvent
 
 
 
ConnectionPoolDataSource
 
RowsetEvent
 
 
 
DataSource
 
 
 
 
 
PooledConnection 
 
 
 
 
RowSet
 
 
 
 
 
RowSetListener
 
 
 
 
 
RowSetMetaDate
 
 
 
 
 
RowSetReader/Writer
 
 
 
 
 
XAConnection
 
 
 
 
 
XADataSource
 
 
 
 

 

Q) java.lang Package

Interfaces
 
Classes
 
Exceptions
 
Cloneable
 
Double, Float, Long, Integer, Short, Byte, Boolean, Character,

ArithmeticException, ArrayIndexOutOfBoundOf.E, ClassCast.E, ClassNotFound.E

 
Runnable
 
Class, ClassLoader
 
IlleAcess.E, IllegalArgument.E
 
Comparable
 
Process, RunTime, Void
 
IllegalSate.E, NullPointer.E
 
 
 
String, StringBuffer
 
NoSuchField.E, NoSuchMethod.E
 
 
 
Thread, ThreadGroup
 
NumberFormat.E

 

Q) java.IO Package

Interfaces
 
Classes
 
Exceptions
 
DataInputstream
 
BufferInputstream, BufferOutputStream
 
 
 
DataOutputstream
 
BufferReader, BufferWriter
 
 
 
ObjectInputStream
 
ByteArrayInputStream, ByteArrayOutputstream
 
 
 
ObjectOutputstream
 
CharacterarrayReader, CharacterArayWriter
 
 
 
Serializable
 
DataInputStream, DataOutputStream
 
 
 
Externializable
 
Filereader, FileWriter
 
 
 
 
 
ObjectInputStream, ObjectOutputStream