Purpose of exec functions
Specify the purpose of exec functions?
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Whenever a process calls one of the exec functions, that particular process is fully replaced through the new program. New program starts its execution from the main function. The processed does not alters across an exec since a new process is not created. However, this function substitutes the current process with the new program from the disk.
Package: The named grouping of classes and interfaces which gives a package namespace. Classes, interfaces and class members devoid of an explicit public, protected or private access modifier {access!modifier} encompass package visibility. The public
Decrement operator: It is an operator (--) which adds one to its operand. This has two forms: pre-decrement (--x) and post-decrement (x--). In its pre-decrement form, the outcome of the expression is the value of its argument subsequent to the decreme
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Initializer: A block stated at the outermost level of a class - identical to a method devoid of a header. The initializer blocks are executed, in order, whenever an instance is formed. They are executed prior to the constructor of the defining class,
Scope: A language's scope rules establish how broadly variables, methods and classes are visible in a class or program. The local variables contain a scope restricted to the block in which they are stated, for example. Private methods and variables co
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