Java Tutorial

Java Tutorial Java Features C++ vs Java Java History Java Hello World Java Development Kit Java Runtime Environment Java Virtual Machine Difference between JDK, JRE, and JVM Memory Areas in Java Java Operators Java Keywords Primitive Data Types Variables

Java Loops

Java Do While Loop Java While Loop Java For Loop Java Enhanced For Loop

Java Programs

Java Basic Programs Factorial Program in Java Fibonacci Series Program in Java Prime Number Program in Java Palindrome Number Program in Java Armstrong Number Program in Java Anagram Program in Java Pattern Programs in Java Calculator Program in Java Leap Year Program in Java Addition Program in Java Number Pattern Programs in Java Star Pattern Programs in Java Package Program in Java Pyramid Program in Java Sorting Program in Java String Palindrome Program in Java Even Odd Program in Java For Loop Program in Java If Else Program in Java Switch Case Program in Java GCD Program in Java LCM Program in Java Hello Program in Java Matrix Program in Java Menu Driven Program in Java Series Program in Java Client Server Program in Java Swapping Program in Java Pig Latin Program in Java Tower of Hanoi Program in Java Recursion Program in Java Matrix Multiplication Program in Java Perfect Number Program in Java Classes and Objects in Java Example Programs String Programs in Java Array Programs in Java Constructor Program in Java Inheritance Program in Java Abstract class Program in Java Interface Program in Java Encapsulation Program in Java Polymorphism Program in Java Exception Handling Program in Java Multithreading Program in Java Thread Program in Java Collection Programs in Java ArrayList Program in Java Stack Program in Java Applet Program in Java Swing Program in Java JDBC Program in Java How to run Java program in command prompt How to run Java program in Eclipse

Java Sorting

Sorting Algorithms in Java Merge Sort in Java Quick Sort in Java Bubble Sort in Java Insertion Sort in Java Selection Sort in Java Heap Sort in Java Radix Sort in Java Topological Sort in Java Bucket Sort in Java Counting Sort in Java

Java OOPs Concepts

OOPs - Object Oriented Programming Objects and Classes in Java Java Naming Conventions Constructors in Java Java this keyword Java static keyword Inheritance in Java Aggregation in Java Java super keyword Constructor Chaining and Constructor Overloading Java Polymorphism Static and Dynamic Binding in Java Java Abstraction Abstract class in Java Interface in Java Difference between Abstract class and Interface Java final keyword Packages in Java Access Modifiers in Java Java Wrapper classes Java Numbers Java Characters Java Integer Java Boolean Java Arrays Java Command Line Arguments Java strictfp Keyword Java Math

Java Strings

Java Strings Java String Methods StringBuilder in Java StringBuffer in Java Java Regular Expressions StringBuffer vs StringBuilder String vs StringBuffer String vs StringBuilder String Manipulation in Java Java String Concatenation How to Reverse a String in Java String Array in Java How to Compare Two Strings in Java How to Concatenate Two Strings in Java Why String in Immutable in Java java.lang.NumberFormatException for Input String String Pool in Java Java Generate Random String How to take String Input in Java Java String Interview Questions

Java Exceptions

Exception Handling in Java Java try catch Java throw Java throws Difference between throw and throws Java finally Java Custom Exception Java Exception Propagation

Garbage Collection

Automatic Resource Management in Java Java Garbage Collection Java finalize() Java gc() Difference between final, finally and finalize

Multithreading

Multithreading in Java Process and Thread in Java Basic Terms in Multithreading Java Thread creation Thread Scheduler in Java Java Thread class DeadLock in Java

Java IO

Java IO Java Read File Java BufferedWriter Java InputStreamReader Java File Java Read File Line By Line Java FileOutputStream Jar File in Java

Serialization

Java Serialization Java transient

Networking

Java Network Programming Java Socket Programming Java URL Java URLConnection HttpURLConnection in Java Java InetAddress Java DatagramSocket and Java DatagramPacket

AWT

Java AWT

Swing

Swing in Java

Java Collections

Collections in Java Java List Interface ArrayList in Java LinkedList in Java Vector in Java Stack in Java ArrayList vs LinkedList in Java ArrayList vs Vector in Java Java Set Interface HashSet in Java LinkedHashSet in Java TreeSet in Java Java Queue Interface PriorityQueue in Java ArrayDeque in Java Java Map Interface HashMap in Java LinkedHashMap in Java TreeMap in Java Dictionary in Java Hashtable in Java Properties in Java Collections class in Java Java Comparable Java Comparator Comparable vs Comparator in Java

Java Generics

Generics in Java

Java Annotations

Annotations in Java

Java JDBC

Java JDBC Tutorial

Java Differences

Java vs JavaScript Python vs Java Kotlin vs Java Java vs C++ C# vs Java Static vs Non-static in Java C vs Java int vs Integer in Java Stack vs Heap in Java Java Array vs ArrayList

How to

How to run Java program How to set path in Java How to check the Java version in cmd How to install Java in Windows 10 How to run Java program in cmd How to call a method in Java How to sort an array in Java How to iterate HashMap in Java How to write Java program How to create an array in Java How to create a package in Java How to generate random numbers in Java How to input String in Java How to create thread in Java How to find length of String in Java How to sort a string in Java How to use scanner in Java How to achieve multiple inheritance in Java How to run Java program in Eclipse How to call a function in Java How to create array of objects in Java How to create custom exception in Java How to achieve abstraction in Java How to call static method in Java

Java 8 Features

Java 8 Features Lambda Expressions in Java Functional Interface in Java Streams in Java Java Base64 Encoding and Decoding Parallel Arrays Sort in Java

Java 9 Features

Java 9 Tutorial Java 9 Try With Resources Java 9 Interface Private Method

Java Servlet Tutorial

Java Servlets Tutorial

Java JSP Tutorial

Java JSP Tutorial

Hibernate Tutorial

Hibernate Tutorial

Spring Tutorial

Spring Tutorial

Spring MVC Tutorial

Spring MVC Tutorial

Jenkins Tutorial

Jenkins Tutorial

Java Math Methods

Math.abs() Math.acos() Math.addExact() Math.asin() Math.atan () Math.atan2() Math.cbrt() Math.ceil() Math.copysign() Math.cos() Math.cosh() Math.decrementExact() Math.exp() Math.expm1() Math.floor() Math.floorDiv() Math.floorMod() Math.getExponent() Math.hypot() Math.IEEEremainder() Math.incrementExact() Math.log() Math.log10() Math.log1p() Math.max() Math.min() Math.multiplyExact() Math.multiplyFull() Math.negateExact() Math.nextAfter() Math.nextDown() Math.nextUp() Math.pow() Math.random() Math.rint() Math.round() Math.scalb() Math.signum() Math.sin() Math.sinh() Math.sqrt() Math.subtractExact() Math.tan() Math.tanh() Math.toDegrees() Math.toIntExact() Math.toRadians() Math.ulp()

Java String Methods

toCharArray() copyValueOf() endsWith() equals() equalsIgnoreCase() format() getBytes() getChars() hashCode() indexOf() intern() isEmpty() join() lastIndexOf() length() replace() replaceAll() replaceFirst() split() startsWith() subSequence() substring() toLowerCase() toUpperCase() trim() valueOf()

Java Conversion

Java Convert String to int Java Convert int to String Java Convert String to long Java Convert long to String Java Convert String to float Java Convert float to String Java Convert String to double Java Convert double to String Java Convert String to Date Java Convert Date to String Java Convert String to Object Java Convert Object to String Java Convert String to char Java Convert char to String Java Convert int to long Java Convert long to int

Misc

Functional Interfaces in Java Singleton class in Java Awesome explanation of Strings in Java Object class in Java Static class in Java All the important string methods in Java String Handling Method in Java What are Array strings in Java Advantages and Disadvantages of Strings in Java Big Decimal class in Java Class definition in Java Char and String differences in Java Difference between String, StringBuffer and StringBuilder in java Replace character in string Java String Coding Interview Questions in Java What is String in Java? String isnullorempty in Java String Matches in Java Trim Method in String Java Bean class in Java Libraries in Java Arithmetic Operations on String in Java

Java 8 Features

Java 8 Features: After the great success of Java 7, many developers were waiting for the next version of one of the best languages in the tech world. Moreover, on 18th March 2014, the prior version of Java 8 was released. Of course, that is a long time ago, but many applications and projects are still working on Java 8. It is because it was a significant release in Java development which comes with a bunch of innovative features. Therefore, Java 8 is considered a vital feature release in JAVA programming language development. 

In this version, Java implemented supports for practical programming. In addition, Java 8 comes with a brand-new JavaScript engine. Furthermore, many new APIs for date-time manipulation was also developed in Java 8. Finally, Java SE 8 took the Java programming language to another level by delivering the tech giant’s most predictable upgrade, i.e., the lambda expressions.It add-on characteristic eventually brought the development principles to the forefront of practical programming.

Features in Java 8

Java 8 provides numerous specialties for Java programming language development. Let us glance through some of the innovative features of Java 8. 

  • It is Faster: In Java SE 8, the applications run faster than previous Java versions. The applications transferred to Java 8 have some speed enhancement without any particular work or tuning. There are plenty of speculations that help in concluding why Java 8 is faster and performs better. These are: 
  • Improvements in the performance of Common Data Structures. 
    • Improvements in Garbage collector.
    • Speed improvements of Fork/Join framework.
  • Fewer Lines of Code: Many developers always blamed Java for making simple work look more challenging by writing more lines of code. However, eventually, Java 8 version provides many functions and APIs that helps in writing the same code smoothly and in fewer lines. 
  • Lambda Expressions: Lambda Expressions are trendy and common in other programming languages like Python, Scala, etc. Lambda Expression or Lambda function is just an unnamed function written as a parameter to some other function. Lambda expression helps in writing a code in a realistic style. It is advantageous in the collection framework library, which allows iteration, filtration, and extraction of data. Lambda Expressions also adds functional processing capacity to Java. Single Abstract Methods (SAM) interface can be implemented more concisely and effectively using these Lambda Expressions.
  • Streams API:After Lambda expressions, Streams API was the most helpful change introduced in Java SE 8. Streams API provides flexibility to the users to manipulate and handle the data. It delivers lazy computation. So, it performs only when requires. It provides a mechanism for preparing a set of data in numerous ways that can involve filtering, conversion, or any different way that may be beneficial to an application. 
  • Java Date/Time API: It has constantly been troublesome to operate with Date, Time, and Time Zones in the Java programming language. In Java, any API or conventional method for handling date and time has never existed before Java 8. One of the excellent extensions in Java SE 8 is java.time package, which helps in streamlining the process of operating with date and time in Java.
  • Default Methods:To promote the functionality of lambda expression, default methods were advanced in Java 8. Java SE 8 provides the facility to append non-abstract methods in interfaces. These non-abstract methods must be declared as default methods first to add them to interfaces. These methods are described inside the interfaces and marked with a default keyword. Default methods can have a method body.
  • Functional Interface:A functional interface is an interface that includes only a single abstract method. Because of this only, functional interfaces can also be called Single Abstract Method interfaces (SAM interfaces). The functional interfaces can have any number of static and default methods. 
  • Method References: A group of statements that delivers a particular task and passes the result to the function caller is known as a method. The method references are the specific kind of lambda expressions or functions. Method references are usually used to build accessible lambda functions by referencing existing methods.
  • forEach() method:Java 8 made iteration very easy by providing a new method for iterating the elements. This method is called the forEach() method. It defined in the Iterable and Stream interface. It accepts only a single parameter that is a functional interface, which allows a user to pass a lambda expression as an argument to the method.
  • Optional Class:Java SE 8 has also implemented an Optional class that stresses on the most beneficial practices to manage null values accurately. It is public and final. It is practiced to deal with the NullPointerException in the Java program and application. It belongs tojava.util package. The class gives a method to check whether there is a value present for a particular variable or not.
  • Java Base64: Java also introduced the Java Base64 class in the Java SE 8. This Java Base64 class helps in encryption and decryption. In order to use the encoding and decoding feature of Java Base64, a user should import the java.util.Base64 class in the source file of the project or application. The Java Base64 class contains three different types of encoders and decoders, which helps in encrypting and decrypting the data at every level of the application.

These are -

  • URL
    • Simple
    • MIME
  • Stream Filter:As we have discussed about the Java Streams API earlier, Java SE 8 also implements a method known as filter() inside the Java Streams. It helps in filtering stream components based on a provided word or predicate. This filter() method is an intermediary process that renders the information from a stream and passes a new stream after changing the data based on the provided situation.
  • Type Annotations:Lambda expressions are by far the most important feature of Java 8, but another feature of Java 8 which has been very useful since its introduction is type annotations. The type annotations are the annotations that can be used anywhere a user uses a type. The type annotations include various elements like new operator and type casts. It also involves clauses like throw clauses and implement clauses. The type annotations are used to improve the Java code analysis, and it helps in ensuring more robust type checking.
  • StringJoiner:Java SE 8 has introduced many methods and classes under java.util package. Another class, which was introduced in Java 8 under java.util package was the StringJoiner class. As the name suggests, the StringJoiner class is used for joining a sequence of characters (or String) by making use of a prefix and suffix. The primary function of the StringJoiner class is to build a string (a sequence of characters) that is distributed by a delimiter such as a comma(,); hyphen(-); etc. The StringJoiner constructor returns NullPointerException if the delimiter is empty or null.
  • Arrays Parallel Sorting:Java SE 8 introduced a new method, i.e., parallelSort() inside the Arrays class. An extra feature is applied to sort the elements of an array in a parallel manner. The method has been computed inside the java.util.Arrays package. The parallelSort() method is an overloaded method, and this method can also be used for all types of primitive data types and all the types of comparable objects.

Summary 

Java SE 8 was a big release for Java, with many syntax changes, new methods, and under-the-cover innovations. The significant changes that helped in the Java programming language development growth are the Lambda Expressions, Method References, Streams, Functional Interface, and Type annotations. These changes allowed the developers to make their applications and projects more efficient and faster. 



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