In this post we discus about the java programming language Java Introduction For Beginners and Features of java After Java 'C' and 'C ++', the most important programming
language is used not only in computers but also in cell phones, Mobiles, PDAs,
etc.
In addition to Java, such application software can be made very easily,
which can connect different types of electronic devices and communicate with
each other.
So Lets Start To Java Introduction For Beginners
- Java History
- Features of java
- Object oriented principles of java
- Java development tools
- Java History
In Programming language we called java is object oriented
programming language. Sun Micro-systems java in 1991 in the US Was made in Java
was first named oak but later it was java by changing it. Java James Gosling had developed. Java was developed to create consumer electronics such as TV,
VCR etc. software.
Java's most important and popular feature was
that java platform was independent. Because java was not created for any particular
hardware or operating system. Programs
created in Java can be executed on any system. This feature of Java makes java
the most popular language today
- Features of java
Java has many features. To become a good java programmer, you must know all these features. Let's try to know about some of the popular features of java.
- Compiled and Interpreted
- Platform Independent
- Object Oriented
- Robust and Secure
- Distributed
- Simple and Familiar
- Multi-threaded and Interactive
- High Performance
- Dynamic and Extensible
- Ease of Development
- Compiled and Interpreted
Most programming languages are either compiled or
interpreted. But java combines these two approaches and creates a two stage
system. First java produces byte code by compiling your program. Byte code
machine instructions are not. Therefore java interprets the byte code in second
stage and generates machine code, which can be executed directly.
- Platform Independent
Java makes the byte code platform independent. When you
compile a java program, it gets converted into a byte code. These byte codes cannot
run on any machine or operating system. It just runs on JVM (Java VirtualMachine).
To run Java's program you have to install JVM on your
operating system. There is a separate JVM for each operating system, but the
work does all the same. And that is the job to convert the byte code to the
machine code for that operating system. Therefore, byte code generated by JVM
of any one operating system can be run on any other JVM. And then JVM generates
machine code for that operating system.
Therefore different machine codes are generated for
different machines but they are generated from the same byte code because your
program is first converted into byte code.
- Object Oriented
Java is a true object oriented programming language. In Java
almost everything is the object. All your information in Java is stored as
objects.
- Robust and Secure
Java is a robust language. Any program created in Java can
work in different environments without crashing with different technologies.
Java programs never crash. This is a very reliable language.
- Distributed
You can create distributed applications from Java.
Distributed applications are those applications that are on different networks
and work together to perform tasks. Through RMI in Java, you can interact with
available applications on another network.
- Simple and Familiar
Java is a simple language. Many of the Java features are
derived from c and c ++. Java's syntax is similar to c and c ++. Such as variable declarations control
statements and method declarations etc. All this makes java easier to
understand. Because java c and c ++ are built keeping in mind so most
programmers seem to be familiar.
- Multi-threaded and Interactive
Java is a multi-threaded language. Any java program can
complete several tasks simultaneously. This feature makes java fast and
interactive.
- High Performance
Java's performance is very impressive. The speed of Java is
the main reason byte code. The architecture of Java is designed in such a
manner that over head on java run over is very less.
- Dynamic and Extensible
Java is a dynamic language. During the Java run time,
dynamic linking is done by libraries, methods and classes. Java can be easily
used with new technologies.
- Ease of Development
It is very easy to develop programs in Java. Java
provides built-in libraries that contain important classes for your use. This
reduces the overhead of the programmer. Programmer can easily develop software
by accessing these libraries.
- Object Oriented Principles Of Java
As I told you, java is an object oriented language. Java also follows all object oriented technologies like object oriented principles. Let's try to know about these principles.
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
- Java History
In Programming language we called java is object oriented
programming language. Sun Micro-systems java in 1991 in the US Was made in Java
was first named oak but later it was java by changing it. Java James Gosling had developed. Java was developed to create consumer electronics such as TV,
VCR etc. software.
Java's most important and popular feature was
that java platform was independent. Because java was not created for any particular
hardware or operating system. Programs
created in Java can be executed on any system. This feature of Java makes java
the most popular language today
- Features of java
Java has many features. To become a good java programmer, you must know all these features. Let's try to know about some of the popular features of java.
- Compiled and Interpreted
- Platform Independent
- Object Oriented
- Robust and Secure
- Distributed
- Simple and Familiar
- Multi-threaded and Interactive
- High Performance
- Dynamic and Extensible
- Ease of Development
- Compiled and Interpreted
Most programming languages are either compiled or
interpreted. But java combines these two approaches and creates a two stage
system. First java produces byte code by compiling your program. Byte code
machine instructions are not. Therefore java interprets the byte code in second
stage and generates machine code, which can be executed directly.
- Platform Independent
Java makes the byte code platform independent. When you
compile a java program, it gets converted into a byte code. These byte codes cannot
run on any machine or operating system. It just runs on JVM (Java VirtualMachine).
To run Java's program you have to install JVM on your
operating system. There is a separate JVM for each operating system, but the
work does all the same. And that is the job to convert the byte code to the
machine code for that operating system. Therefore, byte code generated by JVM
of any one operating system can be run on any other JVM. And then JVM generates
machine code for that operating system.
Therefore different machine codes are generated for
different machines but they are generated from the same byte code because your
program is first converted into byte code.
- Object Oriented
Java is a true object oriented programming language. In Java
almost everything is the object. All your information in Java is stored as
objects.
- Robust and Secure
Java is a robust language. Any program created in Java can
work in different environments without crashing with different technologies.
Java programs never crash. This is a very reliable language.
- Distributed
You can create distributed applications from Java.
Distributed applications are those applications that are on different networks
and work together to perform tasks. Through RMI in Java, you can interact with
available applications on another network.
- Simple and Familiar
Java is a simple language. Many of the Java features are
derived from c and c ++. Java's syntax is similar to c and c ++. Such as variable declarations control
statements and method declarations etc. All this makes java easier to
understand. Because java c and c ++ are built keeping in mind so most
programmers seem to be familiar.
- Multi-threaded and Interactive
Java is a multi-threaded language. Any java program can
complete several tasks simultaneously. This feature makes java fast and
interactive.
- High Performance
Java's performance is very impressive. The speed of Java is
the main reason byte code. The architecture of Java is designed in such a
manner that over head on java run over is very less.
- Dynamic and Extensible
Java is a dynamic language. During the Java run time,
dynamic linking is done by libraries, methods and classes. Java can be easily
used with new technologies.
- Ease of Development
It is very easy to develop programs in Java. Java
provides built-in libraries that contain important classes for your use. This
reduces the overhead of the programmer. Programmer can easily develop software
by accessing these libraries.
- Object Oriented Principles Of Java
As I told you, java is an object oriented language. Java also follows all object oriented technologies like object oriented principles. Let's try to know about these principles.
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
In Programming language we called java is object oriented
programming language. Sun Micro-systems java in 1991 in the US Was made in Java
was first named oak but later it was java by changing it. Java James Gosling had developed. Java was developed to create consumer electronics such as TV,
VCR etc. software.
Java's most important and popular feature was
that java platform was independent. Because java was not created for any particular
hardware or operating system. Programs
created in Java can be executed on any system. This feature of Java makes java
the most popular language today
- Features of java
Java has many features. To become a good java programmer, you must know all these features. Let's try to know about some of the popular features of java.
- Compiled and Interpreted
- Platform Independent
- Object Oriented
- Robust and Secure
- Distributed
- Simple and Familiar
- Multi-threaded and Interactive
- High Performance
- Dynamic and Extensible
- Ease of Development
- Compiled and Interpreted
Most programming languages are either compiled or
interpreted. But java combines these two approaches and creates a two stage
system. First java produces byte code by compiling your program. Byte code
machine instructions are not. Therefore java interprets the byte code in second
stage and generates machine code, which can be executed directly.
- Platform Independent
Java makes the byte code platform independent. When you
compile a java program, it gets converted into a byte code. These byte codes cannot
run on any machine or operating system. It just runs on JVM (Java VirtualMachine).
To run Java's program you have to install JVM on your
operating system. There is a separate JVM for each operating system, but the
work does all the same. And that is the job to convert the byte code to the
machine code for that operating system. Therefore, byte code generated by JVM
of any one operating system can be run on any other JVM. And then JVM generates
machine code for that operating system.
Therefore different machine codes are generated for
different machines but they are generated from the same byte code because your
program is first converted into byte code.
- Object Oriented
Java is a true object oriented programming language. In Java
almost everything is the object. All your information in Java is stored as
objects.
- Robust and Secure
Java is a robust language. Any program created in Java can
work in different environments without crashing with different technologies.
Java programs never crash. This is a very reliable language.
- Distributed
You can create distributed applications from Java.
Distributed applications are those applications that are on different networks
and work together to perform tasks. Through RMI in Java, you can interact with
available applications on another network.
- Simple and Familiar
Java is a simple language. Many of the Java features are
derived from c and c ++. Java's syntax is similar to c and c ++. Such as variable declarations control
statements and method declarations etc. All this makes java easier to
understand. Because java c and c ++ are built keeping in mind so most
programmers seem to be familiar.
- Multi-threaded and Interactive
Java is a multi-threaded language. Any java program can
complete several tasks simultaneously. This feature makes java fast and
interactive.
- High Performance
Java's performance is very impressive. The speed of Java is
the main reason byte code. The architecture of Java is designed in such a
manner that over head on java run over is very less.
- Dynamic and Extensible
Java is a dynamic language. During the Java run time,
dynamic linking is done by libraries, methods and classes. Java can be easily
used with new technologies.
- Ease of Development
It is very easy to develop programs in Java. Java
provides built-in libraries that contain important classes for your use. This
reduces the overhead of the programmer. Programmer can easily develop software
by accessing these libraries.
- Object Oriented Principles Of Java
As I told you, java is an object oriented language. Java also follows all object oriented technologies like object oriented principles. Let's try to know about these principles.
Most programming languages are either compiled or
interpreted. But java combines these two approaches and creates a two stage
system. First java produces byte code by compiling your program. Byte code
machine instructions are not. Therefore java interprets the byte code in second
stage and generates machine code, which can be executed directly.
- Platform Independent
Java makes the byte code platform independent. When you
compile a java program, it gets converted into a byte code. These byte codes cannot
run on any machine or operating system. It just runs on JVM (Java VirtualMachine).
To run Java's program you have to install JVM on your
operating system. There is a separate JVM for each operating system, but the
work does all the same. And that is the job to convert the byte code to the
machine code for that operating system. Therefore, byte code generated by JVM
of any one operating system can be run on any other JVM. And then JVM generates
machine code for that operating system.
Therefore different machine codes are generated for
different machines but they are generated from the same byte code because your
program is first converted into byte code.
- Object Oriented
Java is a true object oriented programming language. In Java
almost everything is the object. All your information in Java is stored as
objects.
- Robust and Secure
Java is a robust language. Any program created in Java can
work in different environments without crashing with different technologies.
Java programs never crash. This is a very reliable language.
Security in Java is provided by JVM. Before producing
machine code, it runs some tests on JVM and detects invalid combinations.
- Distributed
You can create distributed applications from Java.
Distributed applications are those applications that are on different networks
and work together to perform tasks. Through RMI in Java, you can interact with
available applications on another network.
- Simple and Familiar
Java is a simple language. Many of the Java features are
derived from c and c ++. Java's syntax is similar to c and c ++. Such as variable declarations control
statements and method declarations etc. All this makes java easier to
understand. Because java c and c ++ are built keeping in mind so most
programmers seem to be familiar.
- Multi-threaded and Interactive
Java is a multi-threaded language. Any java program can
complete several tasks simultaneously. This feature makes java fast and
interactive.
- High Performance
Java's performance is very impressive. The speed of Java is
the main reason byte code. The architecture of Java is designed in such a
manner that over head on java run over is very less.
- Dynamic and Extensible
Java is a dynamic language. During the Java run time,
dynamic linking is done by libraries, methods and classes. Java can be easily
used with new technologies.
- Ease of Development
It is very easy to develop programs in Java. Java
provides built-in libraries that contain important classes for your use. This
reduces the overhead of the programmer. Programmer can easily develop software
by accessing these libraries.
- Object Oriented Principles Of Java
As I told you, java is an object oriented language. Java also follows all object oriented technologies like object oriented principles. Let's try to know about these principles.
- Encapsulation
- Inheritance
- Polymorphism
- Abstraction
- Encapsulation
Encapsulation is also called data hiding. In Encapsulation,
you declare private variables and they access through public methods, your
variables can access methods of your own class. No other class can access your
variables. Thus, you also hide data and also use it.
Another means of encapsulation is to bind the data and code
into one unit and prevent access from the outside. Such your variables and
methods are banded in the same unit. Java provides 3 levels of data hiding.
Public - Your public class members can access other classes
Private - Your private class members cannot access any other
class.
Protected - Only class to inherit your class can access your
class members.
- Inheritance
Through this principle, you can access the variables of a
class in the second class. Doing so does not require you to write the same
methods repeatedly. This eliminates computer's memory and programmers time
both. Multiple inheritances is not allowed in Java. A class can inherit only
one class. This reduces through java interfaces.
- Polymorphism
Polymorphism means "one name and many things"
Through polymorphism you can take one according to the different actions
according to the situation from an interface. As the method is used in overloading.
- Abstraction
Abstraction is a very important concept of java. When you
bike you do not know how the bike is working. You just run it. You do not know
his internal work. The same concept of abstraction is also. You do not show
your software's internal working user. Just provide the interface to the user
so that they will interact.
- Java Development Tools
In Java the software is created with the help of some built
in development tools. Let's try to know about these development tools.
- JDK (Java Development Kit)
JDK is an environment in which you can create any java
program and execute it. JDK has JRE which is responsible for the execution of
any java program.
- JRE (Java Run-time Environment)
JRE is responsible for the execution of your program. JRE is
a group of classes and libraries that together create the program to execute
the environment.
- JVM (Java Virtual Machine)
As you know, when you compile a java program, it is
converted to the first byte code. After that it is converted into a byte code
machine code. JVM is an environment or machine that converts the byte code to
machine code. It works in conjunction with JRE
JDK is an environment in which you can create any java
program and execute it. JDK has JRE which is responsible for the execution of
any java program.
- JRE (Java Run-time Environment)
JRE is responsible for the execution of your program. JRE is
a group of classes and libraries that together create the program to execute
the environment.
- JVM (Java Virtual Machine)
As you know, when you compile a java program, it is
converted to the first byte code. After that it is converted into a byte code
machine code. JVM is an environment or machine that converts the byte code to
machine code. It works in conjunction with JRE
JRE is responsible for the execution of your program. JRE is
a group of classes and libraries that together create the program to execute
the environment.
- JVM (Java Virtual Machine)
As you know, when you compile a java program, it is
converted to the first byte code. After that it is converted into a byte code
machine code. JVM is an environment or machine that converts the byte code to
machine code. It works in conjunction with JRE
So this is the Java Introduction For Beginners. I hope you learn lots if you have nay query and question please comment in the comment box and share with your friend and thanks for reading keep read our post for that kinds of content
0 Comments
Post a Comment