Java Programming

Platform Independence means that no dependency on Platform. Here Platform mean is environment.We will know here Internal mechanism of Platform Independent Language. Learning Java is too easy but understanding it some what difficult. Any one can create programs on java but very few people know the Internal mechanism of java concepts. In this post we are going to discuss about Internal mechanism of Platform Independent Language. As we are discussing on Java and Java is also a Platform Independent Language. So I will explain Internal meaning of Platform Independence and What is the meaning of Platform Independent Language? First of all think only one thing  that can you execute java program made in windows environment on Unix environment or vice versa? If you are unable to answer, I tell you. 'Yes' we can execute java program in any environment. For this only one thing is needed that is called JVM. Java's most powerful feature is that program written in java can we run on an...

Why do we need Stream? As we know that Stream is a sequence of data. So we need need this Stream to access data so that we could do I/O operation on that data. Below are some reasons which will tell us why do we need stream. 1)In order to perform input/output operation ,we need Stream. 2)Without Stream ,we cannot perform input/output operation. 3)To save your output and input in the hard-disk permanently,we need Stream. Example ======= Banking Application(Before came to the concept of database, developer used STREAM for developed bank application or etc).

Internals of File Handling in Java File Handling is a very important topic in java. We can read, write, update files through file handling. It gives us authority to modify files through this mechanism. We will read here internal mechanism of file handling. How files are being read, How Input/Output operation are being performed on file. In order to read about all this we need to understand STREAM. We will discuss here-   * Why do we need Stream?   *What is Stream?   *What is INPUT?   *What is OUTPUT?   *What is Input Stream?   *What is Output Stream?   *What is Byte Stream?   *Why do we need Byte Stream?   *What is Character Stream?   *Why do we need Character Stream?   *How many ways to take Input from keyboard? We will get all answer here while reading all posts. First I would like to tell you concept of File Handling. File Handling- We can  read or write som...

There are so many ways to declare main() method  or so many predefined signature to declare main() method in java  which could be understand by JVM. p=public  s=static  v=void  m=main  for JDK1.0 up to all above version. 1.psvm(String[] a)  2.spvm(String[] a)  3.psvm(String []a)  4.psvm(String a[])  5.spvm(String []a)  6.spvm(String a[]) for JDK1.5 up to above version(VAR-ARGS)  1.psvm(String... a)  2.psvm(String...a)  3.psvm(String ...a)  4.spvm(String... a)  5.spvm(String...a)  6.spvm(String ...a) 

Java interview questions are provided here for the convenience of interviews. Fresher don't have any idea about the java question asked by interviewers in a java interview. Questions asked in java interview can be from any where. They can be from java development to java evolution. So here i am providing some important java interview questions for the java interviews. It will help them a lot in cracking a java interview. A list of java interview questions is given below- Question: Why Was Java Developed? Ans: Java was developed to provide the concept of platform independence by James Gosling and his team. Question: What is java? Ans: Java is the trademark of SUN MICRO SYSTEM. Note: There is no full form of java. Java is combination of 3 things: (1)Oops (2)Platform (3)Technology Question: What is program? Ans: Program is set of ...

Internals of Classes: Explaining internal mechanism of classes in java Internals of classes:   Classes in java are user defined data types.We can understand internal of classes with an example which is discussed below in this post.A java class is the container which stores members. Class members means methods,variables,blocks,constructor. Class binds multiple methods into a single unit. A class can have only four types of members i.e.  methods,variables,blocks,constructor.  As in real world, Human is a class,Vehicle is a class, Animal is a class same here in java there are classes having their objects. More specifically class is a concept. for ex- A class room which has its boundary, all things like fan,table,chair,computer are its member and the area in which these members exists is known as class. Program for a class in java- //defining class name in java programming class Java_prg { // main() method public static void main(String ...

static method with void return type and reference parameter Java: static method void return type reference parameter in java-programming. Explaining working of a static method with void return type and reference parameter. Complete description of each term in static method void return type and reference parameter. static methods are called without use of object i.e. methods which are declared as static can be called with corresponding class name. Methods can have either zero parameter or multiple parameters. Static methods can have arguments of both type i.e. primitive and reference. Like non-static methods, a static method's return type can be void or primitive or reference. When arguments passed with in the method are reference it means argument will be of class type or interface type or enum type or array type. A static method method whose return type is void then it means, this method will not return any value. Here is a program to explain the concept of Static method v...