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Best 5 free Java Tutorials in 2022

This blog is free to learning online Java Programming Language. There is you find a brief explanation of every tutorial with example at this blog. If you beginners there is the right place to learn Java Programming Language. If you experienced then there is refreshing your knowledge.

1. There is my first topic is introduction of Java. There you learn about what is Java? What is JVM and working of JVM? What is JRE? for learn of all of these topics brief description visit here

2. There is second Topic is what is Java Features and described? For learn all the Java Features click here

3. For learn how many data types use in Java. For the brief description with the examples click here

4. For learn how many type of Java oprator and its use. For the briefly description visit here

For the more topics of the Java like method overloading, method overriding, polymorphism, abstraction, abstract class, functions (methods in Java), use of function in Java, type of methods, Looping statments (for loop, while loop, do while loop and for each loop), how to use of loop and describe by the example, conditional statements, switch case and all other Java topics covered in this blog. For all these java topics visit this blog. Link is given below here.

In this tutorial is explain about how to use if else conditions statements with explanation and given example of Java Programming.

If else Statement:-  If statement is conditional branch statement. Its can be used to program execution through two different paths. Ifstatement closed with curlybraces.  The conditions return a Boolean value.

Syntex:-

If(condition){

      // If condition is true then execution this part of program

}else{

// If condition is false then execution this part of program

}

Most Read:- What is looping ? How many types of loop in Java and describe?

Example:-

1.      If condition is true then:-

int a=10;

int b= 6;

if(a>b){

System.out.println(“a is greater then b”);

}else{

System.out.println(“a is smaller then b”);

}

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Access Modifier in java in this tutorial is explain about what is definition of Access Modifier  and types of access modifier like public, private, protected and default modifier with explanation and given example of Java Programming.

 Access Modifier in Java is provide a scope of a fields, methods, constructor and class. there have four type of Access Modifier in Java.

Type of Access Modifier:-

1. Public  2. Private  3. Protected  4. Default

1. Public access modifier:- 

       Public access modifier is used then you access everywhere. its scope it widest area of all other of modifiers. It can be accessed inside the class, outside of the class, within the package and outside of the package.

public class Test{

public void MsgPrint(){

           System.out.println("Hello");

}

}

class Main{

      public static void main(String[] args){

            Test mObj = new Test();

          mObj.MsgPrint();

}

}

         This tutorial is explain about Java Keywords  likes final keyword, new keyword, static keyword and this keyword with explanation and given example of Java Programming.

Java Keywords in Java:-

1. Final Keyword

2. New Keyword

3. This Keyword

4. Static Keyword

 Final Keyword:

        Final keyword is a non access modifier used for class, attributes and method. If you use final keyword then that value is not changeable. Final keyword is use before of method then method does not override and use before a class then class is not inherited. Final keyword you used when you require that variable always store same value

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         This tutorial is explain about How many types of Java Operators explanation of arithmetic, logical, assigned and comparison operators with example of Java Programming.

Java Operators using a different types in Java:-

Arithmetic Operators:-

Additions(+):-

Example- int mValueA=10;

                  int mValueB=5;

int mSum= mValueA+ mValueB;

System.out.println("TotalValue=" +mSum);

Answer :- TotalValue=15

Substraction(-):-

Example- int mValueA=10;

                  int mValueB=5;

int mSub= mValueA-mValueB;

System.out.println("TotalValue=" +mSub);

Answer :- TotalValue=5

         This tutorial is explain about how many types Data Types in Java explanation of Primitive type and Non Primitive type with example of Java Programming.

Data type divided into two groups:-

Primitive type:- Primitive data type is predefined in java. This is always contains a value and always star with lowercase. Size of primitive data depends on data types. Example:-byte,short,long,int,float, double,boolean and char

Non Primitive Type:- This data types is created by the programmer is not defined by JAVA. This is used to call a methods to perform a operations. This data types is declare as null type value. Non Primitive Type data types start with uppercase letter. Its size has same. Examples:- String , array and Classes.

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         This tutorial is explain about what are the features of Java. there is describe all the 10 features in Java.

Java Features:-

1. Simple:- Java was designed to be easy for the programmers to learn and use. Because java inherit  the C/C++ syntax and many of the OOP Features of C++.

2. Secure:- when you are download any code then its contain many of harmful virus or harmful code. Harmful code cause demage because its getting unauthorized acesses and  its taking your personal and bank information. Java enable applets to be downloaded and executed in client computer safely. Java prevent from these viruses. 

3. Portability:- When you create a program in one system and you want to use that program on different platforms  or system then java helps you to execution of the code on different platforms.

Introduction in Java:-  This blog is free to learning online Java Programming Language. There is you find a brief explanation of every tutorial with example at this blog. If you beginners there is the right place to learn Java Programming Language. If you experienced then there is refreshing your knowledge.

What is a Java?

Ø Java is object oriented programming language that produces software for multiple platforms.

Ø Java has developed by Sun Microsystems Inc in 1991.

Ø At the initial level its called a “Oak” but its was renamed “JAVA” in 1995.

Ø Java was developed by  James Gosling, Patrick, ED Frank and Mike Sheridan.

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