Miscellaneous

      Open URL in Java

      Shutting Down Computer

      Convert time stamp to Date Format

      Find processes in Windows using Java

      Find processes in Windows using Java

      Robot : Write Data to Notepad

      How to close the window in awt

      Get the Machine Details in Java

      Ping Command in Java

      Current Working Directory in Java

      Create Directory in Java

      When is the ArrayStoreException thrown?

      Get Operating System Bit type in windows

      Run System Command in Java

      HeadlessException

      Check Version Of Java

      Get all available fonts in your system

      Get font Family names in your system

      Absolute Positioning in Java

      What does Container.validate() method do?

      Find Default Char set in Java

      Convert Byte Array to String

      Supported Character Encodings in Java

      UniCode

      Display Unicode Characters in Java

      UnsupportedEncodingException

      Unicode support for Java

      surrogate pair in Java

      strictfp

      Exception Parameter

      PatternSyntaxException

      SuppressWarnings Annotation Values by Ecilipse

      ServletConfig Vs ServletContext

      When is destroy of servlets called?

      what is the use of servlet config object ?

      Reifiable Types

      Heap Pollution

      Functional Interface

      ElementType

      Call C Program from Java

      Call cpp program from java

      NoSuchAlgorithmException

      InvalidParameterException

      Get all the registered providers

      java.security.NoSuchProviderException

      java.security.InvalidAlgorithmParameterException

      InvalidKeyException

      InvalidKeySpecException

      Java is pass by value or pass by reference ?

      Difference between HashMap and HashTable

      What is Memory Leak in Java?

      Generate random numbers in between min and max

      Lapsed listener problem

      Compare Strings in Java

      convert string to int in Java

      Get current stack trace in Java

      StringBuilder Vs StringBuffer

      wait() Vs sleep()

      How to check 64bit or 32 bit JVM

      Why Java don't have destructors

      Fail Fast Iterator

      Fail Safe Iterator

      Fail fast Vs Fail Safe iterator

      Cloning in Java

      ConcurrentModificationException

      Can an abstract class have constructor ?

      Cause Of StackOverflowError ?

      Remove entries from HashMap while iterating

      Cloning Vs Creating new Object

      Convert List to Set

      convert List to Integer array in Java

      ClassNotFoundException

      NoClassDefFoundError

      NoClassDefFoundError Vs ClassNotFoundException

      Check whether thread holds lock on object ?

      Array Vs ArrayList

      Get key from value in HashMap

      Download file from Internet using Java

      convert character to string in java

      NotSerializableException

      Number of processors available to JVM

      Kill thread in Java

      UnsupportedClassVersionError

      Strings in switch Statements

      Full qualified name of the class

      NoSuchFieldException

      IllegalAccessException

      How to synchronize Map

      How to synchronize List

      How to synchronize Set

      Assert keyword

      AssertionError

      Can a constructor be private in Java ?

      parseInt Vs valueOf

      Blank Final Variable

      Get Java Vendor information

      FHow to take thread dump from JVM

      Get File path separator

      Get Java class path

      Get the Installation directory of JRE

      Get JRE vendor URL

      Get JRE version number

      Get the Operating system architecture

      Get Operating System name

      Get the Operating System Version

      Get the User working directory

      Get the User home directory

      Get User account name

      Can we define abstract class without abstract methods in Java

      Immutable Objects

      Skip Lists

      What is rt.jar file in Java?

      Get the Version Of Ant

      transient keyword

      serialVersionUID

      InvalidClassException

      Serialization Vs Externalization

      Java program to display data and time

      Java Properties file

      Arrays. asList method

      Convert yyyy-MM-dd HH:mm:ss.SSS format to date object

      Convert yyyy-MM-dd HH:mm:ss.SSS format date to long value

      Convert long value to yyyy-MM-dd HH:mm:ss.SSS format

      Pass java object as HTTP post data

      Class Loaders

      What does Class.forName do exactly?

      Add JavaEE perspective to eclipse

      Create dynamic web project in eclipse

      Configure tomcat server in eclipse

      Generate universal unique identifiers in Java

      Compress and archive files in zip format

      Decompress files from zip file

      UncaughtExceptionHandler in Java

      StringWriter in java

      Crack pdf password using Brute Force technique

      Eclipse Memory Analyzer Tool (MAT)

      Dictionary Attack

      Getting JVM heap size, used memory and Total Memory

      ThreadLocal class

       Kill a process on a port in ubuntu

      How to sort List in Java

      Install maven plugin in eclipse

      EclEmma code coverage tool

      install mysql on ubuntu

      javap : disassemble class files

      Difference between java and javaw

      Concatenate two Generic Arrays

      Apache Tiles

      Message Digest functions

      Java MessageFormat class

      CodePro Tutorial

      Eclipse Short cuts

      Java program to Extract private, public key from keystore

      keytool Extract private and public key from keystore

      Generate secret AES key in Java

      Convert secret key into String in Java

      Convert String to secret key in Java

      Generating secret keys in Java

      Public, private key generation in Java

      Export public key certificate from keystore

      Convert byte array to private, public keys

      Digital Signature tutorial java

      java.util.Objects class

      Java8: Group By implementation in java

      Convert java.util.stream to map

      Java8: for loop to forEach function

      ClassName.this : Access instance of enclosing class

      Code formatting short cut in Android studio

      Newly created folders are not visible in android studio

      Character: isDigit: Is character is a digit

      Simplest way to print array in Java

      Java program to validate IPV4, IPV6 addresses

      Add new maven archetype in eclipse

      File utilities application using Guava package

      Calculating MD5 and SHA values in Java

      Check contents of two files are equal or not

      Get current project classpath

      Project Lombok

      Lombok not showing getters and setters

      JD: Java Decompiler

      linux: tree command code

      Setting MySql root password after installation

      Read input from console

      Display list of countries in Java

      Display list of languages in Java

      Setting role based security in tomcat

      Find all available ports

      Difference between System.out and System.err

      Encrypt and decrypt XML file in Java

      Java csv file processing

      Java: write to csv file

      Java: Read csv file

      Is HTTP Pipelining help?

      Reading pkcs12 certificate information

      Run multiple tomcat instances on one machine

      Java cacerts file

      Create Password Protected zip file in Java

      Setting Up WhatsApp on Your Computer

      List of cities in India

      List of cities in Papua New Guinea

      Java Send mail via gmail

      Java: Capture screenshot programmatically

      Place a file in project class path

      MutabilityDetector: Check Immutability property of classes

      Watching a directory for changes in Java

      Java Preferences API tutorial

      Internationalization using ResourceBundle

      Runtime.addShutdownHook(): Run code at JVM exit

      Accessing meta data of a file (All attributes of file)

      Set Unique Identifier to File in Java

      Set File permissions in Java

      File Tail implementation in Java

      Launch URI Scheme over java file

      DigestInputStream & DigestOutputStream Example

      Move file to recycle bin

      Generate content hash of a file

      HOW TO GENERATE SHA1 HASH VALUE OF FILE

      HOW TO GENERATE MD5 HASH VALUE OF FILE

      List contents of a zip file

      Load Client Certificates from Windows Operating system

      Replace first occurrence of a string in Java

      Load Client Certificates from MAC Operating system

      How to detect Operating System in Java?

      How to detect OS uses KDE or Gnome environment in Java?

      Remove square brackets from IPV6 address in Java

      Split file path using system file separator symbol

      Split the string using file Path separator

      File.separator vs File.pathSeparator

      How to Change Eclipse Default Web Browser

      How to encode url in java?

      How to decode url in java?

      Check encoding scheme supported or not in java

      Get package specific information

      Change context root of a dynamic web project in Eclipse

      Increase tomcat server time out in Eclipse

      Access web application with domain name instead of localhost/ipaddress

      Map localhost and port to a domain

      Convert json string to map

      Java CipherOutputStream example

      Java CipherInputStream example

      Encrypt and Decrypt file/stream in Java

      Print all the file names recursively

      Office URI Scheme

      Serialize the object to byte array

      Deserialize byte array to java object

      Convert query string to name value pair

      Convert epoch to human readable format

      Delete a directory recursively in Java

      How to generate random bytes in Java?

      How to Get Client Certificate from HttpServletRequest

      Keytool: Create and export self-signed certificate

      Convert certificate into base64 encoded array

      Convert encoded byte array to certificate

      Convert certificate into base64 encoded string

      Convert base64 encoded string to certificate

      How to set proxy settings for https, http communication

      Get x.509 certificate from encoded string

      How to write multiple input streams to a file

      Base64 encoding and decoding in Java

      How to chain multiple different InputStreams into one InputStream

      Get Enumeration from Java List

      A short tutorial on FindBugs

      Create XML sitemaps in Java

      How to parse ATOM/RSS feed using Java?

      How to get all the options that your jvm accepts?

      How to increase application heap size in Eclipse?

      How to resolve Eclipse out of memory error?

      Working with RandomAccessFile in Java

      Convert xml document to string

      Pretty print xml string in java

      Working with PMD in Eclipse

      Checkstyle in eclipse tutorial

      ProcessBuilder: Execute system commands

      Get all the month names in Java

      Get week names in Java

      Get all the currencies supported in Java

      Get country and the currency of the country

      jsizer: Visualize the complexity of java project

      How to limit number of requests?

      How to view packages as folder structure in eclipse?

      Comment multiple lines in Eclipse

      Check if a double is infinite in Java

      Eclipse: How to change to dark theme

      Eclipse: web.xml is missing and is set to true

      How to upgrade Eclipse IDE?

      How to check whether given character is part of Java identifier variable name or not?

      Check given string is valid java identifier or not

      Java write to a file using BufferedWriter

      Java write to a file using FileWriter

      Convert the current time to HOURS:MINUTES:SECONDS:MILLISECONDS format

      Java: Get alphabets of all the supported languages

      Which languages has lower and upper-case letters

      Which languages do not have both lower and upper-case letters

      Get year, date, day, time from Calendar

      Groovy: Convert json to object and object to json

      Convert byte array to hexa string

      Java: Programmatically import certificate to cacerts file

      Apache commons io: Download a file from url

      Java: Escape string using html entities

      Java: Convert throwable to string

      Create simple Block chain using java

      Block Chain: Create a wallet and transfer coins from one wallet to other in Java

      String to byte array

      Standard Character Set

      Byte array to string

      Default character encoding

      IntegrCache

      Convert xml file to csv

      Shuffle characters in a string

      Concatenation of two characters return an integer

      Bidirectional Map

      Number of weeks between two dates

      Number of Months between two dates

      Number of Days between two dates

      Number of Years between two dates

      Number of Hours between two dates

      Number of Minutes between two dates

      Number of Seconds between two dates

      Redirect System.out.println statements to a stream or file

      Redirect System.err.println statements to a stream or file

      How to add days to a date in Java?

      Check whether given date is valid or not

      Regex to check immediate repeated characters in a string

      Is Java primitive data types stored in stack or heap?

      Can I cast a null to reference type in Java?

      Generate java classes from xsd file

      String equals vs compareTo

      Convert String to char array

      Convert String to Character array

      Ordered vs sorted collection

      Convert byte to binary string

      Convert integer to binary string

      Evaluate mathematical expression given in string form

      Append text to a file

      Create and write text content to a file

      Create and write byte array to a file

      Read plain text file in Java

      Shuffle the elements of array in Java

      Set time out on specific block of code

      Compile multiple java files in one line

      Show only n digits after decimal point

      Check for positive integer using regular expression

      Is BigInteger has any limit?

      Reverse words in a sentence

      Copy contents of directory to other directory

      Copy file from one location to another

      Search for files in a folder

      Print all the file names in a directory and sub directories

      Read last n lines of a file

      What is NumberFormatException?

      Convert hexa string to byte array

      Convert string to hexa string

      Convert integer to hexa string

      Convert hexa string to integer

      Convert long to hexa string

      Convert hexa string to long

      Get the path of running Java class

      Search for an element in the array

      Generate random alpha numeric string

      Write Properties to System.out

      Escape equal sign in properties file

      Delete elements of list while iterating

      Why byte = byte + 1 is not compiling?

      Repeat string n times

      Increment the date by one day

      Pad integer with zeros

      How to create ArrayList from Array

      Get path to System desktop

      How to get the current directory path?

      Open a file

      Convert InputStream to ByteArray

      Convert file to byte array

      Get date and time for given time zone

      Get all supported time zones

      Print float value without scientific notation

      Print double value without scientific notation

      How to create a jar file

      Java: Get content hash of the file

      AES Symmetric encryption example

      Validate xml file against xsd schema

      Convert string to CharSequence

      Read file content as string

      Sort an array in ascending order

      Sort array in descending order

      How to convert int[] to Integer[] in Java?

      How to convert int[] to List in Java?

      How to convert byte[] to Byte[] in Java?

      How to convert byte[] to List in Java?

      How to convert short[] to Short[] in Java?

      How to convert short[] to List in Java?

      How to convert long[] to Long[] in Java?

      How to convert long[] to Long[] in Java?

      How to convert float[] to Float[] in Java?

      How to convert float[] to List in Java?

      How to convert double[] to Double[] in Java?

      How to convert double[] to List in Java?

      How to convert char[] to Character[] in Java?

      How to convert char[] to List in Java?

      How to convert boolean[] to Boolean[] in Java?

      How to print integer in binary format?

      How to print integer in octal format?

      How to print integer in hex format?

      Convert Stream to Iterable

      How to escape html in java?

      Replace 2 or more spaces with single space in a string

      Get milliseconds from LocalDateTime

      Convert uri query parameters to a map of name, value

      How to get UTF-8 String literal constant?

      Get number of seconds from Jan 1st 1970

      Read file content as string in one line

      How to get sub array or part of array

      Get file name by removing extension

      System getProperties vs getenv

      What are -Xms and -Xmx parameters while launching java application?

      Get Generic type of a list

      How to get generic types of map in Java?

      How to get value type of map in Java?

      How to get key type of map in Java?

      How to get the content type of a list?

      Parse XML String in Java

      Convert Eclipse java project to maven project

      Eclipse: Enable break point when exception thrown

      Pad string with stars

      Pad 0’s to binary representation of integer

      Left pad a string with zeros

      Convert UTF-8 byte array to string

      Convert string to UTF-8 byte array

      Convert ISO_8859_1 byte array to string

      Convert string to ISO_8859_1 byte array

      Convert US_ASCII byte array to string

      Convert string to US_ASCII byte array

      Convert UTF_16 byte array to string

      Convert string to UTF_16 byte array

      Convert UTF_16BE byte array to string

      Convert string to UTF_16BE byte array

      Convert UTF_16LE byte array to string

      Convert string to UTF_16LE byte array

      Convert UTF-16 unicode characters to UTF-8 in java

      Reverse an integer array

      Concatenate two byte arrays

      Convert Object array to String array

      Check whether given character is whitespace or not

      Check given character is letter or not

      Get Date from Unix timestamp

      Get Instant from Unix time stamp

      Get Calendar from Unix time stamp

      Set Default time zone to the application

      Integer vs int

      Sort the files by their last modified date

      Sort files by their name

      Sort files by their size

      Get File size in java

      Get File size in java

      List files by their created time

      Create file parent directories if they are not exist

      Convert iterator to list

      How to check BigDecimal is greater than 0?

      How to compare two BigDecimals?

      Convert list to map using streams

      Ignore duplicates while producing map from a stream

      Get file name from absolute path

      How to get java.sql.TimeStamp in Java?

      Format float to n decimal places

      Convert a char to integer

      Read input using Scanner

      How to print double value without scientific notation?

      Convert Object to int

      Count number of lines in a file

      Convert int to Long

      Convert Float to a string

      Convert string to float

      What are connecting characters in Java while defining identifiers?

      String.replace vs String.replaceAll

      How to set time zone for java.util.Date

      Format Instant to String

      Round BigDecimal to n decimal places

      Convert Calendar to yyyy-MM-dd format

      Get LocalDate from long epoch time

      Get LocalDateTime from long epoch time

      Display number from 0-9 in two digits

      Compare two dates without time portion

      Convert LocalDate to Date

      Convert Double to String

      Java: remove oldest elements from the Queue

      How to pretty print a map content in Java?

      Java: Replace spaces by new line character

      Java: Convert integer to byte array

      Java: Get native byte order of the underlying platform

      Java: Convert byte array to an integer

      Java: How to evaluate a mathematical expression?

      How to create an array of N random bytes

      Convert ASCII code to equivalent character

      Java: Implement command line progress bar

      Handle parameterized error messages using MessageFormat class

      Check whether my application is running on windows system or not

      Sign a jar file using jarsigner tool

      How to get the decimal grouping character for given locale?

      Command to check CPU temperature in Mac

      Quick guide to Java DecimalFormat class

      Compress and decompress a string in Java

      Discover and load the implementations of a service using ServiceLoader in Java