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Thread: Just a simple one for a newbie!!

  1. #1
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    Default Just a simple one for a newbie!!

    I want to call a value from another class but not sure how:

    class Angle{
    double angleStart;

    public Angle(){
    angleStart = 0;

    Where the value is 0 i want to call in a value entered earlier in the program i gues u use a get command?


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    Default Re: Just a simple one for a newbie!!

    Quote Originally Posted by scones73 View Post
    I want to call a value from another class but not sure how:

    class Angle{
    double angleStart;

    public Angle(){
    angleStart = 0;

    Where the value is 0 i want to call in a value entered earlier in the program i gues u use a get command?

    Hi,
    You just need to create a class with main method and use this code

    Angle angle=new Angle();
    System.out.println(angle.angleStart);

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    Default Re: Just a simple one for a newbie!!

    Thanks for the reply but its not called angle earlier in the programme - i want to call in the value from something else and store it as the new value for angle - is that possible??

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    Default Re: Just a simple one for a newbie!!

    Rule is "if u want to call any member of any class then u have to create an object of that class then u can call that variable or method".

    Sorry I am not able to understand your problem properly. can u be more specific for your requirement.

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    Default Re: Just a simple one for a newbie!!

    i used a value in a variable earlier in the programme called tempPosition and the outputted it - i now want to reuse the original value to do another calculation...sorry im not very good at explaining

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    Default Re: Just a simple one for a newbie!!

    i now want to reuse the original value
    Where did you save the original value? If you assign a new value to a variable, the original value is gone.
    Or if the variable is defined locally to a method, when the method exits all its local variables go away.

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    Default Re: Just a simple one for a newbie!!

    You also know that sometimes you can use methods that are static without having to instantiate an object right?

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    Default Re: Just a simple one for a newbie!!

    Quote Originally Posted by elisha.java View Post
    You also know that sometimes you can use methods that are static without having to instantiate an object right?
    A bad approach without having the real need and use of static to use static.

    Also, scones73: Why don't you read about getters and setters (accessors and mutators) to accomplish your job?

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