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I am reading a C Language book.
It said,
some higher-lever language are not
compiled but are interpreted.Basic and Java are two programming
languages in which programs are ofter
interpreted and not compiled. Other
examples include the Unix system’s
shell and Python.
How about C# and Perl?
I thought C# should be compiled always and Perl doesn’t compiled always.
Is that right?
C# and Java are both compiled, but not to native code. They are compiled to bytecode (for the Common Language Runtime and Java Virtual Machine, respectively), which is interpreted by their VM.
Perl can be compiled, actually, since there’s a command line option to produce C code from Perl and compile that. But more generally, Perl is interpreted.
Both Perl and Python, when run normally, are compiled to bytecode which is then interpreted by their respective interpreters. There is no required compilation before running, unlike Java and C#.
By the definitions of your C book, languages are only compiled if they are compiled to native code (e.g. assembly) that runs directly on the CPU with no runtime.