I have a prob in my assignment.What are keywords and identifiers?
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Are there languages which allow a keyword to be\naccepted as an identifier.\n\nYes, most of the old (incomprehensible) languages did that (like PL/1) i think but i'm not sure, i'm not very used to obsolete languages)....\n\nAh, so modern languages like C are "comprehensible"? Perhaps you should spend some time looking at the submissions to the Obfuscated C contests.\n\nEveryone loves to give PL/I examples like:\n\nIF IF = THEN THEN THEN = ELSE ELSE ELSE = END END\n\n[Actually IF IF = THEN THEN = ELSE; ELSE ELSE = END; END -John]\n\n(which I think is valid PL/I - it's been years, but it's at least close) but that simply proves that you *can* write incomprehensible code in PL/I. So? Show me a language in which you *can't* write incomprehen-sible code.\n\nWhat gets forgotten in all this is the *reason* PL/I didn't reserve its keywords. The PL/I designers knew they were designing what was, for its time, a very large language, which was intended to be useful to very different groups of programmers. History lesson: PL/I and the 360 series were developed at the same time. Originally, PL/I was intended\nto be *the* programming language for the 360. Before the 360, IBM and others in the business had two lines of machines, one for business (for IBM, the 1400 series), one for scientific work (the 709x). Business machines often did decimal arithmetic, had instructions for string manipulation, BCD support, and such, and were programmed in languages like COBOL. Scientific machines usually used binary arithmetic, supported floating point, and were programmed in languages like FORTRAN (US) and Algol (Europe). One fundamental idea in the development 360\nwas to have one line of machines to serve both markets. PL/I was similarly intended to replace both COBOL and PL/I. One of the great comments of the era was that a committee of COBOL and FORTRAN experts sat down to design PL/I - and came up with a language that looked more like Algol than either. \n\nSince PL/I was large and served disparate markets, it was likely that most programmers would only be familiar with a subset of the language. Experience with COBOL - which had a long list of keywords, all reserved  - showed that avoiding all the keywords was a headache. It would be even more so if you had to avoid keywords that only applied to parts of\nthe language you didn't know. So the PL/I designers made the deliberate decision to avoid reserved keywords. Rather than criticizing as incomprehensible a language you know nothing about, take a look at it and find places where the language was made ugly or artificial to avoid reserving keywords. I'll bet you have a lot of trouble doing so.\n\nLest you think that long lists of (reserved) keywords is a feature only of obsolete languages, I suggest you look at the list for C++. I believe C++ reserves more keywords than PL/I had - and perhaps as many as COBOL at its worst did. (Certainly, modern C++ is a larger language the PL/I ever was.)\n\nOver the years, another cost of reserved keywords has become apparent: It becomes difficult to extend the language. You're faced with the Hobson's choice of adding a new readable keyword, thus breaking existing correct code; adding an unreadable keyword that's unlikely to conflict\nwith existing code; or reusing some existing keyword for a new purpose. There's often a bias toward the last of these -and you can see the results in languages like C and C++, where keywords like static and virtual have a variety of only very loosely related meanings.\n\nI suspect the main reason people have generally reserved keywords is two-fold: Language "style" has become fixed, and people want to use lexers and parser generators. Language "style" is hard to pin down, but it's clear that, whatever C "style" is, it's been a big winner - C and\nJava both have C "style". However, C "style" isn't compatible with non- r
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All that info is on wikipedia.  Don't expect us to do all your homework for you.  If you want to get away with that, try asking ONE question and phrasing it as if it were your own, and not what your prof asked for.
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Is this your homework?cheater...look it up on Google
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wow that seems a little more then just "help". google most of this and you will find the answers. If you need help that is one thing, but your whole assignment?
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If you use the dictionary to look up the meaning of each word, usually there will be an example phrase or sentence. I suspect this is your homework assignment and you're trying this as a shortcut. \n\nDo the leg work and you'll learn something in the bargain! Try using an on-line dictionary to get yourself started. You'll be done with it in less than 20 minutes.
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do your own homework. at least try to make the question not sound like a homework question
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Mail me on tap_sung_bong@yahoo.co.uk and I will send you an assignment with it in.
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a project about a topic which have many refrences (as a student) .. about something new unknown and challenging (as a researcher) !!!!
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www. google.com.  Your solution to any problems.  Type in the keyword and there you are looking at handful of websites which can provide you with the information you need to complete your fantastic paper.  You can also look into your local library's website for reference.
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Read the book!\n\nThat's the whole point of this assignment. Yahoo Answers is not a vehicle for you to escape your responsibilities.
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Based on number of questions you are asking, it looks like you're trying to get the answers for your whole homework assignment.  Since most of these are fairly easy problems, I'd suggest you spend some time working them and making sure you know how to differentiate.  Trust me, you'll do better in your class if you work some of these on your own.
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This should help ... http://www.cmsu.edu/x228.xml
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Its tricky work, i need digrams to explain to you so your better just following this link, I think it will help you out.
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The first error is :  Can you find the error? \nFIND THE PROBLEM\nFind <what's> wrong here... (you left out the ' in whats)\n\nand the second error is: You used a "0" instead of an "O".
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Do your own homework. You're a college student. Don't be lazy and tell us to do your work for you. I mean, what if your professor finds out you're getting your ideas from Yahoo Answers and fails you? You're a big girl. DIY.
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Please use ADD DETAILS to specify what your question is about this assignment, and I'd be happy to try to help you.
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Hey I did the same assignment and procrastinated like hell. Below is a link with a bunch of posters that you can use and easy to explain. \nhttp://portland.indymedia.org/en/2002/09/22177.shtml