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Thread: Java question in exam help

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    Default Java question in exam help

    Hi i am new to the forum and just wanted some advice to the following question, i have just completed my java exam at university and the following question came up below

    In Java code, write class called Student with the following features:
    a private instance variable int studentNumber that is initialised to zero.
    a private instance variable String firstName;
    a private instance variable String lastName;
    a constructor which takes an integer argument and two String arguments to
    initialises the three respective data items.
    a public method with signature equals(Student s) . . .

    could someone tell me how they would of answered this so i know i was on the right track

    thanks jag


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    Default Re: Java question in exam help

    Can you post the code you have written and ask some questions about it?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Java question in exam help

    I dont have the code that i wrote, i was kinda stuck on the whole question

    --- Update ---

    i was stuck on the constructor bit, the rest was fairly simple

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    Default Re: Java question in exam help

    No, problem. You can take as long as you need to write the code again.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Java question in exam help

    i know the rest of the code norm its just the constructor bit i was stuck on i wouldn't know how to answer it thats why i needed help for that bit

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    Default Re: Java question in exam help

    Post what you have tried and any errors you are getting.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Java question in exam help

    Hi norm this is my code

    `public class student {`
    `private int studentnumber = 0;`

    `public student () {`
    `firstname= "forename":`
    `lastname="surname":`

    `public student (integer studentnumber, string firstname, string lastname) {`

    `this.firstname= firstname`
    `this.lastname= lastname:`


    My question is how do i add the integer in the argument do i have to use int =? and how would i go about doing the public signature equals any help would be appreciated thanks

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    Default Re: Java question in exam help

    Please edit your post and wrap your code with code tags:
    [code=java]
    YOUR CODE GOES HERE
    [/code]
    to get highlighting and preserve formatting.

    Also use the compiler to find any errors so you can correct them and post correct code if you can. Otherwise copy the full text of the error messages and paste it here if you need help.

    how do i add the integer in the argument
    An example of using an int as an arg in a call to a method:
      someMethod(234);  // pass the int arg 234 to someMethod()
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Java question in exam help

    Several problems with that. "integer" and "string" are not data types from the standard library. What you mean are "int" and "String". Capitalization is important and makes a difference in java.
    The next Problem is, that your class-name starts with a lowercase letter which, although not illegal, is discouraged and bad coding practice.
    And then you try to use variables called "firstname" and "lastname" but these variables are never defined in your program. You should get a "cannot find symbol" error from your compiler.

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