怎么消除以下两个方法的重复代码？

Question

以下两个方法传入参数类型不一样，但是处理逻辑是一致的，要怎么才能消除重复代码privatevoidsetStudentExamRank(Listlist){Listtemp=Lists.newArrayListWithCapacity(list.size());temp.addAll(list);temp.sort(Comparator.comparingInt(StudentExam::getScore));StudentExame;for(inti=0;i0?i+1:0);}}privatevoidsetStudentClassesTestRank(Listlist){Listtemp=Lists.newArrayListWithCapacity(list.size());temp.addAll(list);temp.sort(Comparator.comparingInt(StudentClassesTest::getScore));StudentClassesTeste;for(inti=0;i0?i+1:0);}}

Answer 1

用继承或接口都可以
interfaceGrade{
intgetScore();
}
classStudentExamimplementsGrade{
publicintgetScore(){
//TODO
}
}
classStudentClassesTestimplementsGrade{
publicintgetScore(){
//TODO
}
}
privatevoidsetStudentClassesTestRank(Listlist){
//...
list.sort(Comparator.comparingInt(Grade::getScore));
//...
}
                            

Answer 2

StudentExam和StudentClassesTest继承同一个父类或实现同一个接口比如Student。然后定义方法:
publicvoidsetRank(Studente){
for(inti=0;ie=temp.get(i);
e.setRank(e.getScore()>0?i+1:0);
}
}
调用时传入StudentExam或者StudentClassesTest的实例即可