java - 我应该在哪里声明此代码中的字段才能编译？

Question

这不应该是一个客户端类。我只是做一个类(class)供其他人使用。我将其用于高中。例如，我有地址、老师、学生、校长、房间号的类(class)> 等。但由于某些奇怪的原因它没有编译。我相信这是因为我没有声明一个字段但不确定。

import java.io.*;


public class HighSchool {
    // Constructors
        public HighSchool() { } 

        public HighSchool(String title, String teacher, int roomNumber, String period, String[] students, String address, String subjects ) {
            this.title = title;
            this.teacher = teacher;
            this.roomNumber = roomNumber;
            this.period = period;
            this.String[] students = students;
            this.String address =a ddress;
            this.String subjects = subjects;
        }
        public class Classcourse (String title, String teacher, int roomNumber, String period, String[] students, String  address, String subjects

        private String period;) {

        public String gettitle() {
            return title;
        }
        public void settitle(String title) {
            this.title = title;
        }
        public String getteacher() {
            return teacher;
        }
        public void setteacher(String teacher) {
            this.teacher = teacher;
        }
        public int getroomNumber() {
            return roomNumber;
        }
        public void setroomNumber (int roomNumber) {
            this.roomNumber = roomNumber;
        }
        public String getperiod() {
            return getperiod();
        }
        public void setperiod (String period) {
            this.period = period;
        }
        public String[] getstudents () {
            return students[];
        }
        public void setstudents[] (String[] students

        private String address;) {
            this.students = students;
        }
        public String getaddress() {
            return address;
        }
        public void setaddress (String address) {
            this.address = address;
        }
        public String getsubjects() {
            return subjects;
        }
        public void setsubjects (String subjects) {
            this.subjects = subjects;
        }
        }


        // modifier method
        public void addstudents(String students) {
            String[] newstudents = new String[students.length + 1];
            for (int i = 0; i < students.length; i++) {
                newstudents[i] = students[i];
            }
            newstudents[students.length] = student;
            students = newstudents;
        }

        public boolean isInClass(String students) {
            for (int i = 0; i < students.length; i++) {
                if (students[i].equals(students)) {
                    return true;
              }
            }


            return false;
        }

        // static creator method
        public static HighSchool readFromInput() throws IOException {
            BufferedReader kb = new BufferedReader(new InputStreamReader(System.in));
            System.out.print("Enter a HighSchool title: ");
            HighSchool newHighSchool = new HighSchool(kb.readLine());
            String students = null;
            do {
                System.out.print("Enter a student, or press Enter to finish: ");
                students = kb.readLine();
                if (students != null){
                    newHighSchool.addstudents(students);
                }
            } while (students != null);
            return newHighSchool;
        }


        // Variables (Fields)
        private String title;
        private String[] students;
}

Answer 1

此外，你写的东西从Java编译器的角度来看是没有意义的:

私有(private)字符串句点;) { - 可能删除“)”。

第二件事:

看一下 Classcourse 类的声明。这听起来相当错误，尽管这可能是该网站编辑器的问题或其他问题......

一个“总体”提示 - java 有一个非常“智能”的编译器，在大多数情况下它可以准确地指出您的代码出了什么问题，因此，假设您是 Java 新手，请尝试了解编译器所说的内容给你。

祝你好运!