Skip to main content

JAVA HOME

 CORE JAVA HOME PAGE :


BASIC JAVA :

  1. BASIC OVERVIEW OF JAVA
  2. PRIMITIVE TYPES AND WRAPPER CLASS
  3. JAVA OPERATORS
  4. LOOPS IN JAVA
  5. NAMING CONVENTION WITH FACTORIAL PROGRAM
  6. EXCEPTION IN JAVA
OOPS CONCEPT :
  1. OOPS CONCEPTS IN JAVA
  2. INHERITANCE IN JAVA
  3. ABSTRACTION IN JAVA
  4. POLYMORPHISM IN JAVA
  5. ENCAPSULATION IN JAVA
JAVA 8 NEW FEATURES :
  1. JAVA 8 FUNTIONAL INTERFACE 
  2. JAVA 8 STREAM  

Comments

Post a Comment

Popular posts from this blog

JAVA MEMORY LEAK, UTILISATION AND MONITORING USING JFR using Mission Control

JAVA MEMORY LEAK, UTILISATION AND MONITORING USING JFR using Mission Control Java flight recording(JFR) help us to analyse and find the root cause of any slowness in our program along with CPU usage , hot methods and garbage collection , profiling etc. To visualise we need to feed .jfr file to JDK mission control present in JDK bin folder. After successful compilation , we should run the program with below option which will generate the .jfr and feed to mission control.   command :  j ava -XX:+UnlockCommercialFeatures -XX:+FlightRecorder  -XX:StartFlightRecording=duration=200s,filename=flight.jfr -cp ./out/ path-and-class-name Below are some example to understand how this JFR can be helpful. 1. Lets consider we have created a java program in which we have used LinkList to store the elements and in same program we are using contains method inside a for loop of 1 million , in this case each time this contains method will be called then 1 million records will be sc...
Post a Comment
Read more

JAVA 8 FUNTIONAL INTERFACE

JAVA 8 FUNTIONAL INTERFACE  Funtional Interface :     An interface which has only one abstract method can be called a funtional interface. Comparable , Runnable , Callable all these interfaces has only one abstract method and can be consider as funtional interface.    How it works :        Once we will create a interface with one abstract method then java internally predicates the input type and based on the Interface reference it apply the logic mentioned after lambda expression    lets consider we have created an interface as below @FunctionalInterface public interface FuntionalExample { public int cal ( int a , int b) ; } And below class to test our funtional Interface. public class FuntionalInterfaceExample { public static void main (String args[]) { FuntionalExample addition=( int a , int b) -> a+b ; FuntionalExample subtraction=( int a , int b) -> a-b ; FuntionalExample multipl...
Post a Comment
Read more

Java Overview : Basic Java Overview

  JAVA BASIC OVERVIEW :  Java is high-level, class-based, robust, platform independent and object oriented programming language. Here each keyword has specific meaning which we need to understand.     How java internally works and execute our logic ?    We will need to write a file with extension .java, in which we will be writing our logics to be executed and this should be inside a class because java starts from main method of any class which is public inside the file named same as class name.    Example :  public class FirstJavaProgram {      public static void main(String[] args) {      //our logics      } }   This code should be saved in a file named as  FirstJavaProgram.java Whenever we are writing a java class, it's basically a blue print of what class has and it can do, it means characteristics  and behaviour , just like a simple real l...
Post a Comment
Read more