I'm Chinese,i think my country is very different than others from culture,economy and others.
firstly,in the history ,japan had been learn our culture and letter about a thousand year ago,they have some customs are same to the tang dynasty,but in the nowadays,the customs is very different than before both China and japan.japan was turn it to localization,China developed it to be more modern,so the customs became very different between China and Japan
as far as the other Asia countries,some countries such as Korea and Southeast Asian countries are same like japan,have been learn something from ancient China in some levels,but they developed it to be another styles.
I think different country have different culture(except the two countries were a same country in history),but if i have to pick one,I would to choose the Japan.
Chen,
Here are a few ideas to help you to improve your writing:
Always write the prononoun "I" with a capital letter, always start a new sentence with a capital letter and always write the names of countries with an an initial capital letter e.g. Japan.
"I think different countries have different cultures" - we need to use the plural because we are talking about more than one country and more than one culture.
"Are same like" is incorrect. We can say "Are the same as" or "are like".
I hope that this helps a little.
Victoria