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What is class and object in Java ? What is class and object in Java ?

What is class and object?    A class is a template from which objects are created . That is objects are instance of a class.   W...

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Garbage Collection in Java Garbage Collection in Java

Garbage Collection    Objects are dynamically allocated by using the new operator.   In some languages, such as C++, dynamically...

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What is JVM ? What is JVM ?

Each of the preceding buzzwords is explained in  The Java Language Environment  , a white paper written by James Gosling and Henry McGi...

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What is Java ? and Features of JAVA What is Java ? and Features of JAVA

Java features What is Java? u Java is a programming language that: n   Is exclusively object oriented n   Has full GUI suppor...

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Concept of Redirection and Piping in Unix Concept of Redirection and Piping in Unix

 Most UNIX commands expect input to come from a file(s), and produce output to anther file(s).  “One of these files is the standard input,...

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Useful Commands in Ubuntu Useful Commands in Ubuntu

A comprehensive list of commands needed when using Ubuntu: Command privileges.      sudo command  - run command as root      sudo...

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