Tuesday, April 17, 2007

What is conversational state ?

The field values of a session bean plus the transitive closure of the objects reachable from the bean's fields. The transitive closure of a bean is defined in terms of the serialization protocol for the Java programming language, that is, the fields that would be stored by serializing the bean instance.


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What is continue ?

A Java keyword used to resume program execution at the end of the current loop. If followed by a label, continue resumes execution where the label occurs.


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What is const ?

A reserved Java keyword not used by current versions of the Java programming language.

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What is Collections?

Common collection activities include adding objects, removing objects, verifying object inclusion, retrieving objects and iterating.


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What is compositing ?

The process of superimposing one image on another to create a single image.


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What is commit ?

The point in a transaction when all updates to any resources involved in the transaction are made permanent.


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What is comment ?

In a program, explanatory text that is ignored by the compiler. In programs written in the Java programming language, comments are delimited using // or /*...*/.


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What is codebase ?

Works together with the code attribute in the tag to give a complete specification of where to find the main applet class file: code specifies the name of the file, and codebase specifies the URL of the directory containing the file.


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What is a compiler ?

A program to translate source code into code to be executed by a computer. The Java compiler translates source code written in the Java programming language into bytecode for the Java virtual machine.

In the client/server model of communications, the client is a process that remotely accesses resources of a compute server, such as compute power and large memory capacity.


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What is compilation unit ?

The smallest unit of source code that can be compiled. In the current implementation of the Java platform, the compilation unit is a file.


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What is class variable ?

A data item associated with a particular class as a whole--not with particular instances of the class. Class variables are defined in class definitions.


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What is class ?

In the Java programming language, a type that defines the implementation of a particular kind of object. A class definition defines instance and class variables and methods, as well as specifying the interfaces the class implements and the immediate superclass of the class. If the superclass is not explicitly specified, the superclass will implicitly be Object.


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What is catch ?

A Java keyword used to declare a block of statements to be executed in the event that a Java exception, or run time error, occurs in a preceding try block.


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What is char ?

A Java keyword used to declare a variable of type character.

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What is casting ?

Explicit conversion from one data type to another.

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What is case ?

A Java keyword that defines a group of statements to begin executing if a value specified matches the value defined by a preceding switch keyword.


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What is BufferedWriter ?

This class is used to make low-level Writer classes like FileWriter more efficient and easier to use. BufferedWriters write relatively large chunks of data to a file at once.

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What is BufferedReader ?

This class is used to make low-level Reader classes like FileReader more efficient and easier to use.BufferedReaders read relatively large chunks of data from a file at once and keep this data in a buffer.


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What is Boxing?

Allows you to convert primitives to wrappers or to convert wrappers to primitives.


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What is bytecode ?

Machine-independent code generated by the Java compiler and executed by the Java interpreter.


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What is byte?

A sequence of eight bits. Java provides a corresponding byte type.


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What is break ?

A Java keyword used to resume program execution at the statement immediately following the current statement. If followed by a label, the program resumes execution at the labeled statement.


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What is boolean ?

Refers to an expression or variable that can have only a true or false value. The Java programming language provides the boolean type and the literal values true and false.


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What is a block ?

In the Java programming language, any code between matching braces. Example: { x = 1; }.


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What is bitwise operator ?

An operator that manipulates the bits of one or more of its operands individually and in parallel. Examples include the binary logical operators (&, |, ^), the binary shift operators (<<, >>, >>>) and the unary one's complement operator (~).


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What is bit ?

The smallest unit of information in a computer, with a value of either 0 or 1.


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What is binary operator ?

An operator that has two arguments.


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