• Python
• Java
• JavaScript
• SQL
• C
• C++
• HTML
• CSS
• React
• Node.js
• Spring Boot
• C#
• PHP
• MySQL
• MongoDB
• AI
• ML
• DSA
• DBMS
• OS

Java String Methods

• String charAt()
• String compareTo()
• String concat()
• String contains()
• String endsWith()
• String equals()
• equalsIgnoreCase()
• String format()
• String getBytes()
• String getChars()
• String indexOf()
• String intern()
• String isEmpty()
• String join()
• String lastIndexOf()
• String length()
• String replace()
• String replaceAll()
• String split()
• String startsWith()
• String valueOf()
• String substring()
• String toCharArray()
• String toLowerCase()
• String toUpperCase()
• String trim()

Java Array Class

• Java Array Class
• get()
• getBoolean()
• getByte()
• getChar()
• getDouble()
• getFloat()
• getInt()
• getLength()
• getLong()
• getShort()
• newInstance()
• set()
• setBoolean()
• setByte()
• setChar()
• setDouble()
• setFloat()
• setInt()

Java Math Methods

• Math.abs()
• Math.max()
• Math.min()
• Math.round()
• Math.sqrt()
• Math.cbrt()
• Math.pow()
• Math.signum()
• Math.ceil()
• Math.copySign()
• Math.nextAfter()
• Math.nextUp()
• Math.nextDown()
• Math.floor()
• Math.floorDiv()
• Math.random()
• Math.rint()
• Math.hypot()
• Math.ulp()
• Math.getExponent()
• Math.IEEEremainder()
• Math.addExact()
• Math.subtractExact()
• Math.multiplyExact()
• Math.incrementExact()
• Math.decrementExact()
• Math.negateExact()
• Math.toIntExact()
• Math.log()
• Math.log10()
• Math.log1p()
• Math.exp()
• Math.expm1()
• Math.sin()
• Math.cos()
• Math.tan()
• Math.asin()
• Math.acos()
• Math.atan()
• Math.sinh()
• Math.cosh()
• Math.tanh()
• Math.toDegrees
• Math.toRadians

ArrayList Methods

• add
• addAll
• addAll
• clear
• Iterator()
• listIterator()
• remove
• removeAll
• removeRange
• retainAll

Java List Methods

• List containsAll()
• List equals()
• List get()
• List hashCode()
• List indexOf()
• List isEmpty()
• List size()
• List sort()
• List spliterator()
• List sublist()
• List toArray()

Java Thread Methods

• start()
• run()
• sleep()
• currentThread()
• join()
• getPriority()
• setPriority()
• getName()
• setName()
• getId()
• isAlive()
• yield()
• suspend()
• resume()
• stop()
• destroy()
• isDaemon()
• setDaemon()
• interrupt()
• isinterrupted()
• interrupted()
• activeCount()
• checkAccess()
• holdLock()
• dumpStack()
• getStackTrace()
• enumerate()
• getState()
• getThreadGroup()
• toString()
• notify()
• notifyAll()
• setContextClassLoader()
• getContextClassLoader()
• getDefaultUncaughtExceptionHandler()
• setDefaultUncaughtExceptionHandler()
• Java Thread class

Java Date Class

• java.util.Date
• after()
• before()
• clone()
• compareTo()
• equals()
• getTime()
• hashCode()
• setTime()
• from()
• getDate()
• getDay()
• getHours()
• toInstant()
• toString()
• getMinutes()
• getYear()
• parse()
• setDate()
• setHours()
• setMinutes()
• getMonth()
• getSeconds()
• getTimezoneOffset()
• toGMTString()
• toLocaleString()
• utc()

Java Collection Methods

• Collection add()
• Collection addAll()
• Collection clear()
• Collection contains()
• Collection containsAll()
• Collection equals()
• Collection hashCode()
• Collection isEmpty()
• Collection iterator()
• Collection remove()
• Collection removeAll()
• Collection removeIf()
• Collection retainAll()
• Collection size()
• Collection spliterator()
• Collection toArray()

Java ListIterator Class

• Java ListIterator
• add()
• hasNext()
• hasPrevious()
• nextIndex()
• next()
• previousIndex()
• previous()
• remove()
• set()

Java NIO Tutorial

• Java NIO
• NIO Components
• NIO Package
• NIO vs. IO
• NIO Channels
• NIO Buffers
• NIO Scatter/Gather
• NIO Data Transfer
• NIO Selector
• NIO SocketChannel
• NIO ServerSocketChannel
• NIO Pipe
• NIO CharSet
• NIO Encode/Decode
• NIO Channels FileLock

HttpURLConnection

• Java HttpURLConnection
• disconnect()
• getErrorStream()
• getFollowRedirects()
• getHeaderField()
• getResponseCode()
• getResponseMessage()
• setAuthenticator()
• setFollowRedirects()

Java Deque

• Java Deque
• add()
• addAll()
• addFirst()
• addLast()
• contains()
• descendingIterator()
• element()
• getFirst()
• getLast()
• iterator()
• offer()
• offerFirst()
• offerLast()
• peek()
• peekFirst()
• peekLast()
• poll()
• pollFirst()
• pollLast()
• pop()
• push()
• remove()
• removeFirst()
• removeLast()
• removeFirstOccurrence()
• removeLastOccurrence()
• size()

Java HttpCookie Class

• Java HttpCookie
• clone()
• domainMatches()
• equals()
• getComment()
• getCommentURL()
• getDiscard()
• getDomain()
• getMaxAge()
• getName()
• getPath()
• getPortList()
• getSecure()
• getValue()
• parse()
• setComment()
• setCommentURL()
• setDiscard()
• setDomain()
• setHttpOnly()
• setMaxAge()

Java URL class

• URL getDefaultPort()
• URL equals()
• URL getAuthority()
• URL getContent()
• URL getFile()
• URL getHost()
• URL getPath()
• URL getPort()
• URL getProtocol()
• URL getRef()
• URL getUserInfo()
• URL hashCode()
• URL openConnection()
• URL sameFile
• URL toExternalfile()
• URL toString()
• URL toURI()

Java Vector class

• Vector add()
• Vector addAll()
• Vector addElement()
• Vector capacity()
• Vector clear()
• Vector clone()
• Vector containsAll()
• Vector contains()
• Vector copyInto()
• Vector elements()
• Vector ensureCapacity()
• Vector equals()
• Vector firstElement()
• Vector forEach()
• Vector hashCode()
• Vector elementAt()
• Vector get()
• Vector indexOf()
• Vector insertElementAt()
• Vector isEmpty()
• Vector iterator()
• Vector lastElement()
• Vector lastIndexOf()
• Vector removeAllElements()
• Vector removeAll()
• Vector removeElementAt()
• Vector removeElement()
• Vector remove()
• Vector replaceAll()
• Vector retainAll()
• Vector removeRange()
• Vector setElementAt()
• Vector set()
• Vector setSize()
• Vector size()
• Vector sort()
• Vector spliterator()
• Vector subList()
• Vector toString()
• Vector trimToSize()
• Vector listIterator()
• Vector toArray()

Java Socket Class

• Socket Class
• Socket bind()
• Socket close()
• Socket connect()
• Socket get00BInline()
• Socket getChannel()
• Socket getInetAddress()
• Socket getKeepAlive()
• Socket getLocalPort()
• Socket getLocalSocketAddress()
• Socket getPort()
• Socket getReceiveBufferSize()
• Socket getRemoteSocketAddress()
• Socket getReuseAddress()
• Socket getSendBufferSize()
• Socket getSoLinger()
• getSoTimeout()
• Socket getTcpNoDelay()
• Socket getTrafficClass()
• Socket isBound()
• Socket isClosed()
• Socket isConnected()
• Socket isInputShutdown()
• Socket isOutputShutdown()
• Socket sendUrgentData()
• Socket setKeepAlive()
• Socket setOOBInline()
• Socket setTrafficClass()
• Socket shutdownInput()
• Socket shutdownOutput()
• Socket setSoLinger()
• Socket setSoTimeout()
• Socket setTcpNoDelay()
• Socket getInputStream()
• Socket getOutputStream()
• Socket setReceiveBufferSize()
• Socket setReuseAddress()
• Socket setSendBufferSize()
• Socket toString()

Java Executors

• Java Executors
• Executors callable()
• Executors defaultThreadFactory()
• Executors newCachedThreadPool()
• Executors newFixedThreadPool()
• ExecutorsnewScheduledThreadPool()
• Executors newSingleThreadExecutor()
• newWorkStealingPool()
• Executors privilegedThreadFactory()

Java Integer Class

• Java Integer Class
• Integer bitCount()
• Integer byteValue()
• Integer compare()
• Integer compareTo()
• Integer compareUnsigned()
• Integer decode()
• Integer divideUnsigned()
• Integer doubleValue()
• Integer equals()
• Integer floatValue()
• Integer hashCode()
• Integer highestOneBit()
• Integer intValue()
• Integer longValue()
• Integer lowestOneBit()
• Integer max()
• Integer min()
• Integer numberOfLeadingZeros()
• Integer numberOfTrailingZeros()
• Integer parseUnsignedInt()
• Integer remainderUnsigned()
• Integer reverseBytes()
• Integer reverse()
• Integer rotateLeft()
• Integer rotateRight()
• Integer shortValue()
• Integer signum()
• Integer sum()
• Integer toBinaryString()
• Integer toHexString()
• Integer toOctalString()
• Integer toString()
• Integer toUnsignedLong()
• Java Integer toUnsignedString() Method
• Integer parseInt()

Java IdentityHashMap

• Java IdentityHashMap values() method
• Java IdentityHashMap size() method