punctuation

[faryan]

Is it Okay to place a period between these two quotations? -In the case I was needed to put them in a line.-
'I hate cooking!'.'You've changed your tune. you used to love it!'

[5jj]

Why would you need to put them in one line? This is much better:

'I hate cooking!'
You've changed your tune. yYou used to love it!'

[Raymott]

Is it Okay to place a period between these two quotations? -In the case I was needed to put them in a line.-
'I hate cooking!'.'You've changed your tune. you used to love it!'

What is the context? The way you would present two example sentences would depend on the purpose of juxtaposing them like this. I can't think of a good reason for it.

If you simply want to say, "Here are three sentences: 'I hate cooking!','You've changed your tune" and 'You used to love it!'", then I'd set it out like this.

[Rover_KE]

Look at any book containing dialogue.

When a different person speaks, a new line is started.

Rover

[faryan]

Thanks to you all.
The original text is exactly as what dear Five and honourable Rover mentioned. I have to put them in a line actually as dear Raymott suggested, but still need to know if it's incorrect to place a period instead of a comma?

[faryan]

Why would you need to put them in one line? This is much better:

'I hate cooking!'
You've changed your tune. yYou used to love it!'

Gee! Sorry!

[faryan]

'I hate cooking!','You've changed your tune" and 'You used to love it!'"

I didn't get the usage of both kinds of quotation marks here! Do you mean I should combine them? Start and end with the single speech mark?
But what happened to those which fell between? They are just a piece of the pairs, aren't they?

Sorry because of too much of my curiosity and stubbornness!

[5jj]

I didn't get the usage of both kinds of quotation marks here! Do you mean I should combine them?

There was a typo -it should have been a single quotation mark after tune.
If you simply want to say, "Here are three sentences:'I hate cooking!', 'You've changed your tune' and 'You used to love it!' ", then I'd set it out like this . (I have put an additional space after the last single and before the last double quotation marks to make it clear which is which.)

The three sentences, set off by single quotation marks, are contained within what you want to say, set off in double quotation marks.