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Thread: java - inheritance

  1. #1
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    Post java - inheritance

    following is the program i wanted to print the output of areas of both triangle and rectangle, but im not getting it.....please help me in getting the areas of both...thank you



    class Shape
    {
    int dim1;
    int dim2;

    Shape(int a,int B)
    {
    dim1=a;
    dim2=b;
    }
    void rotate()
    {
    System.out.println("rotating");
    }
    void erase()
    {
    System.out.println("erasing");
    }
    }

    class Rectangle extends Shape
    {
    Rectangle(int l,int B)
    {
    super(l, B);
    }
    int getArea()
    {
    return dim1*dim2;
    }
    }

    class Triangle extends Shape
    {
    Triangle(int b,int h)
    {
    super(b,h);
    }
    int getArea()
    {
    return(dim1*dim2)/2;
    }
    }

    class Run1
    {
    public static void main(String[] args)
    {
    Rectangle rect=new Rectangle(10,20);
    rect.getArea();
    rect.rotate();
    rect.erase();

    System.out.println("-----------------");
    Triangle t1=new Triangle(20,40);
    t1.getArea();
    t1.rotate();
    t1.erase();
    }
    }


  2. #2
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    Default Re: java - inheritance

    "i'm not getting it" provides zero information.

    Do you get errors when you compile or run your code? Then post the exact message here.
    Does the program not behave as expected? Then post what your input was, what incorrect output or behaviour you got and what you expected to happen instead.
    Improving the world one idiot at a time!

  3. #3
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    Default Re: java - inheritance

    Hello,
    You are just not printing the areas. Add print statements.

    Syed.

  4. #4
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    Default Re: java - inheritance

    i wanted to print the areas of both... where to add those print statements?

  5. #5
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    Default Re: java - inheritance

    Wherever you want the values to be displayed. It is your program you decide. However, after the area has been calculated would be a good place!
    Improving the world one idiot at a time!

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