Others

Q1. Is it possible to change a carpeted floor into a wooden one ?: A1.

Generally speaking, it is difficult. In some apartments or condos, there is a regulation which prohibits such changes.
Q2. Are apartments in Tokyo safe for earthquakes?: A2.

Tokyo often experiences earthquakes due to its geographical location.
Newer buildings are designed to withstand earthquakes and some older ones have been reformed to earthquake-proof structures. Please do not put heavy things on top of shelves.
Q3. Are appliances such as a refrigerator, washing machine, and dryer already installed in the apartment?: A3.

Although there are some apartments that come furnished with a refrigerator, washing machine, and dryer, most apartment in Tokyo are not. However, almost all apartments have a gas or electric stove installed.