What is an array?

--Those that manage multiple pieces of information in order --One variable can have multiple values --Multiple values can be entered in the array

input

names = ["Tanaka","Yamada","Sato"]

puts names

output

Tanaka
Yamada
Sato

Add value (<<)

Add a value to the end of the array.

input

names << "Suzuki"

puts names

output

Tanaka
Yamada
Sato
Suzuki

Get array values

Specify and get the subscript. input

name = names[0]
puts name

name = names[2]
puts name

output

Tanaka
Sato

Change array values

input

puts name[1]
names[1] = "Sasaki"
puts name[1]

output

Yamada
Sasaki

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