derived class init
Last updated
Last updated
ๅจๅๅงๅ็้็จไธญ๏ผๅ ็บ parent class ็ class fields ๆๅ ๅๅงๅใconstructor ๆๅ ๅท่ก๏ผๆไปฅๅฆๆๆญคๆๅจ parent constructor ๅ งๆๅ this ็ฉไปถ็ overridden class fields ็่ฉฑ๏ผ็ฑๆผ้ๆ็ overridden class fields ๅฐๆชๅฎๅ จๅๅงๅ๏ผๅ ๆญคๅฏ่ฝๆ็ข็ใ่ผธๅบ้ฏ่ชค(ๆชๆ็)็ๅฑฌๆงใ็ๅ้กโ๏ธ
๐ ่ฉณๆ ่ซ็๏ผ override class fieldsใโ็ๆณ ใ้ ้ข
โญ๏ธ Note: when "parent constructor" is called (in an initialization process):
"overridden methods" are used โ
"parent class fields" are used โโ
ไนๅฐฑๆฏ่ชช๏ผๅฆๆๅจ parent constructor ๆๅผๅซ overridden methods๏ผๅ overridden methods ๆ่ขซๅท่ก๏ผไฝๆญคๆๆๆๅ็ไปปไฝ this ็ฉไปถๅฑฌๆง้ฝ้ๆๆฏ็จ parent class fields๏ผๅ ็บๅจ้ๅๆ้้ป๏ผoverride class fields ้ๆฒๆๆฉๆๅๅงๅโ
๐พ ็จๅผ๏ผreplit