ps:Student類中定義了兩個(gè)字符串類型的ID和namepublic void StudentSort(){ List<Student> StudentList=new ArrayList<Student>(); Random random=new Random(); ? ? ?StudentList.add(new Student(random.nextInt(1000)+"","小明"));問(wèn)題:在sort排序中,這個(gè)random.nextInt(1000)生成的隨機(jī)數(shù)難道是代表ID嗎,還是其他什么??如果是ID的話,那","這個(gè)代表什么??這個(gè)代碼是看視頻老師寫的代碼,對(duì)這種寫法有點(diǎn)疑問(wèn)請(qǐng)前輩指點(diǎn)下 ? ? ?StudentList.add(new Student("","小紅")); ? ? ?StudentList.add(new Student("","小藍(lán)")); ? ? ?System.out.println("------排序前------"); ? ? ?for (Student student : StudentList) { ?System.out.println(student.name); }{
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