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Why Java?

Why Java? Java is one of the world’s most important and widely used computer languages, and it has held this distinction for many years. Unlike some other computer languages whose influence has worn with the …

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What is Java virtual Machine(JVM)?

What is Java virtual Machine(JVM)? Java Virtual Machine(JVM)  provides runtime environment to execute java byte code. The JVM doesn’t understand Java typo, that’s why you compile your *.java files to obtain *.class files that contain …

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My first Java Program

My first Java Program class Hello { public static void main(String[] args) { System.out.println ("Hello World program"); } } class : class keyword is used to declare classes in Java public : It is an …

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Data Types in Java

Java language has a rich implementation of data types. Data types specify size and the type of values that can be stored in an identifier. In java, data types are classified into two catagories : …

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Type Casting IN JAVA

Type Casting IN JAVA Assigning a value of one type to a variable of another type is known as Type Casting. Example : int x = 10; byte y = (byte)x; In Java, type casting …

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Variables in java

Variables in java Java Programming language defines mainly three kind of variables. Instance variables Static Variables Local Variables 1) Instance variables Instance variables are variables that are declare inside a class but outside any method,constructor …

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Concept of Array in Java

An array is a collection of similar data types. Array is a container object that hold values of homogeneous  type. It is also known as static data structure because size of an array must be specified …

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Java Operators

Java provides a rich set of operators enviroment. Java operators can be devided into following categories Arithmetic operators Relation operators Logical operators Bitwise operators Assignment operators Conditional operators Misc operators Arithmetic operators Arithmetic operators are …

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Command line argument in Java

The command line argument is the argument passed to a program at the time when you run it. To access the command-line argument inside a java program is quite easy, they are stored as string …

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Java Package

Package are used in Java, in-order to avoid name conflicts and to control access of class, interface and enumeration etc. A package can be defined as a group of similar types of classes, interface, enumeration …

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