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type > primitive type > integral type > char^2
Next integral typeinteger^2    Upintegral type

char^2 comparison table
Subject hold have default value have use as is a kind of is an instance of
integral type  a corresponding class in the java.lang package primitive type 
char^2a two byte Unicode character'\u0000'a sign indicating positive or negativean int because each character has a corresponding numerical code that represents its position in the character set integral type

Next integral typeinteger^2    Upintegral type