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Thread: Need help to write an interpreter in Java

  1. #1
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    Cool Need help to write an interpreter in Java

    Hi Everyone,

    I need your help to develop an interpreter with given specs below. Can you guide me how start with this? I'm not that good in Java and our instructor requires us to to do this java. Do you think this is possible in Java? My deadline will be next week...till now im not able to figure out how will i do coding for this. ..


    Input should look like this:
    MYCODE

    CREATE
    FLOAT x is 0.00
    STRING str is $Hello World$
    FLOAT y is 0.00
    FLOAT res is 0.00
    END

    BRAINPOWER
    ASKVALUE x
    ASKVALUE y
    DISPLAY $ The sum is :$
    GIVEMORE ADD x y
    GIVE result
    END

    MYCODE



    The out put should be

    /* assuming x = 10 and y = 0 */
    Hello World
    The sum is 10


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Need help to write an interpreter in Java

    I don't see that the example is complete/correct. Where does the code do anything with str?

    One step would be to define the syntax of the language, the types of statements and the data types.
    Then write a parser that reads the source, parses and executes each statement.
    If you don't understand my answer, don't ignore it, ask a question.

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