関連ワード:  java non-static method cannot be referenced from a static context    java non-static method cannot be referenced    java stream non static method cannot be referenced    java error non static method cannot be referenced    java non static method cannot be referenced from static context    java method reference non static method cannot be referenced    java lambda non-static method cannot be referenced from a static context    java error non static method cannot be referenced from a static context    java non static method nextint () cannot be referenced from a static context    java non static method nextline () cannot be referenced from a static context  
結果 : java non-static method cannot be referenced