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[Moghjubar]

...may I ask what you're making?

I'm not him, but it's either a strategy game on a hexagonal grid, an rpg on a hexagonal grid, or a bunch of hexagonal cells with a couple goombas in one.

Goombas on a grid: Mario Tactics confirmed.

[Magnumcannon]

I'm using Java and i have run into this problem when using methods. I thought they would be pretty straight-foward and i'm actually following the example of a working code (i'm studying programming through a book). Here is my code:

Spoiler (click to show/hide)

Code: [Select]

class CircleArea{
    public static void main (String args []){
        double a = calc ();
        int r = 8;
        System.out.println (a);
       
        static double calc ()
        {
            double area = (3.14 * (r*r));
            return area;
        }
       
    }
}

And here is the error i'm getting

Spoiler (click to show/hide)

CircleArea.java:7: error: illegal start of expression
        static double calc ()
        ^
CircleArea.java:7: error: ';' expected
        static double calc ()
                          ^
2 errors

I have no idea why it's it's asking a semi-colon. I used this code as base for mine and it worked fine.

Spoiler (click to show/hide)

Code: [Select]

class ReturnValue
{
    public static void main (String args [])
    {
        int result = c ();
        System.out.println (result);
    }
    static int c ()
    {
        int s = 5 + 7;
        return s;
    }
}

[TheBiggerFish]

What even...
You're attempting to define a method inside another method?  Can you even DO that?

[Magnumcannon]

What even...
You're attempting to define a method inside another method?  Can you even DO that?

facepalms

Thank you so much. This small mistake almost drove me crazy . I think i must have got used to Python.

[Bauglir]

What even...
You're attempting to define a method inside another method?  Can you even DO that?

You can in some languages, and there are sometimes good reasons to do it.

I dunno about Java, though, and it's not something I, personally, have ever needed to do, so I can't give any sensible examples.

[Putnam]

What even...
You're attempting to define a method inside another method?  Can you even DO that?

You can in some languages, and there are sometimes good reasons to do it.

I dunno about Java, though, and it's not something I, personally, have ever needed to do, so I can't give any sensible examples.

Java's aggressively object-oriented. I'm not sure if it has anything resembling functions that aren't methods.

[Gatleos]

...may I ask what you're making?

I'm not him, but it's either a strategy game on a hexagonal grid, an rpg on a hexagonal grid, or a bunch of hexagonal cells with a couple goombas in one.

Goombas on a grid: Mario Tactics confirmed.

It's just a placeholder. Also yes.


I'll try out some of the suggestions I got and report back.

[Skyrunner]

What even...
You're attempting to define a method inside another method?  Can you even DO that?

You can, in languages that are first-class objects! (Or whatever,  I don't remember the exaact term)

It's quite important in functional styles of programming..

[Reelya]

In C++ you can't make nested functions, but you can define a struct inside a function, then give that an () operator and use it like a function

[Orange Wizard]

I think you can make classes inside classes in Python (I've never had need to do such a thing, surprisingly), and then make methods inside those.

[Skyrunner]

Yep.

You can make classes within functions, classes within classes, and functions within functions.

The function inside function part is quite useful

[EnigmaticHat]

Alright, this is stupid but I can't think of keywords to google it.

In Python with the default IDE after using ctrl+f to find something I could hit ctrl+g to keep finding the same term without having to reopen the find dialogue.  This is useful for me because I sometimes, ah, go through a large document and change the same thing dozens of times due to poor planning.

How do I do that in visual studio (specifically VS 2015 community edition)?

[Rose]

Ctrl+shift+f will open a find window that can do that, or you can just press f2 on a variable or function to rename all instances of it.

[Orange Wizard]

Well, if you can't put up with interface inconvenience, you might want to use something other than IDLE.

[TheBiggerFish]

This is not strictly a programming question, but I fugre it's probably relevant enough.
Does anyone know of an easy-to-use screen/audio capturer for Windows that supports .mp4?