Adding doubles and ints.

First of all, I hate the fact Java can't just NOT separate the two. It's a bit annoying to keep up with. But anyway:

I have a stack of strings. Some are "4.4" and some are "1".

When they are "popped" they are then converted to a double or an integer depending on certain circumstances that are probably obvious here.

The stack looks like this:

4.4 1 +

They are to be popped and added, but I have a problem right there.
I have no idea how to add 4.4 and 1 and get an exact answer that isn't rounded down or anything like that. So what do I do?

What have you tried?

Code :

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System.out.println(4.4 + 1);

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What does that output?

Why are you bothering with ints? Why not just convert everything to double?

I actually didn't know you could do that with the System.out.println command. Sorry, I'm still a bit new at this, I've only known Java for like a month.

Edit
Actually, that wouldn't work if 4.4+1 is part of a bigger expression.
You're right about the doubles though.

It has nothing to do with the println method and everything to do with math.

Code java:

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int one = 1;
double fourPointFour = 4.4;
double result = fourPointFour + one;

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Works just fine too.

Quote:

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Originally Posted by SkyAphid

First of all, I hate the fact Java can't just NOT separate the two. It's a bit annoying to keep up with.

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The two serve different purposes, and people who really care about memory don't want to use something they don't need. "NOT separating the two" would be a horrible idea.

Quote:

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It's a bit annoying to keep up with

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You will find that a lot in programming.There are Lots of important details to keep up with.

Quote:

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Originally Posted by SkyAphid

Actually, that wouldn't work if 4.4+1 is part of a bigger expression.

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What the heck are you talking about? 4.4 + 1 will produce 5.4 every single time regardless of where you place it in your code. Unless you have 4.4 + 1 * 3.2 in your expression. That of course would produce a different result due to operator precedence but the result will still be a double and you can still add, multiply, subtract and divide ints and doubles.