package Ġcom . github . l ili ang sh an . poi . column Ċ Ċ / ******************************** **** Ċ Ġ* ĠColumn Ġinterface Ċ Ġ* Ġ@ author Ġl ili ang sh an Ċ Ġ* Ġ@ date Ġ 2 0 1 9 / 1 0 / 3 0 Ċ Ġ********************************* ***/ Ċ interface ĠColumn < T > Ġ{ ĊĊĠĠĠ Ġfun Ġtype (): ĠFieldType ĊĊĠĠĠ Ġfun Ġvalue (): ĠT ĊĊĠĠĠ Ġfun Ġis Null (): ĠBoolean ĊĊĠĠĠ Ġfun Ġkey (): ĠString ĊĊĠĠĠ Ġfun Ġindex (): ĠInt Ċ Ċ }