编写一个java程序，模拟学生管理系统。可以实现对学生信息的添加、删除、修改和查询功能，要求使用List集合存储自定义的对象集合，并熟练使用List集合的中常用方法实现相关的操作。

以下是一个简单的学生管理系统的Java程序，使用了List集合存储自定义的学生对象集合，并实现了添加、删除、修改和查询功能。

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class StudentManagementSystem {
    private static List<Student> students = new ArrayList<>();

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        while (true) {
            System.out.println("请选择操作：");
            System.out.println("1. 添加学生");
            System.out.println("2. 删除学生");
            System.out.println("3. 修改学生");
            System.out.println("4. 查询学生");
            System.out.println("0. 退出");

            int choice = scanner.nextInt();

            switch (choice) {
                case 1:
                    addStudent(scanner);
                    break;

                case 2:
                    deleteStudent(scanner);
                    break;

                case 3:
                    updateStudent(scanner);
                    break;

                case 4:
                    queryStudent(scanner);
                    break;

                case 0:
                    System.exit(0);
                    break;

                default:
                    System.out.println("无效的选择");
                    break;
            }
        }
    }

    private static void addStudent(Scanner scanner) {
        System.out.println("请输入学生姓名：");
        String name = scanner.next();
        System.out.println("请输入学生年龄：");
        int age = scanner.nextInt();
        System.out.println("请输入学生性别：");
        String gender = scanner.next();

        Student student = new Student(name, age, gender);
        students.add(student);

        System.out.println("添加成功");
    }

    private static void deleteStudent(Scanner scanner) {
        System.out.println("请输入要删除的学生姓名：");
        String name = scanner.next();

        boolean removed = false;
        for (Student student : students) {
            if (student.getName().equals(name)) {
                students.remove(student);
                removed = true;
                break;
            }
        }

        if (removed) {
            System.out.println("删除成功");
        } else {
            System.out.println("未找到该学生");
        }
    }

    private static void updateStudent(Scanner scanner) {
        System.out.println("请输入要修改的学生姓名：");
        String name = scanner.next();

        boolean updated = false;
        for (Student student : students) {
            if (student.getName().equals(name)) {
                System.out.println("请输入新的学生年龄：");
                int age = scanner.nextInt();
                System.out.println("请输入新的学生性别：");
                String gender = scanner.next();

                student.setAge(age);
                student.setGender(gender);
                updated = true;
                break;
            }
        }

        if (updated) {
            System.out.println("修改成功");
        } else {
            System.out.println("未找到该学生");
        }
    }

    private static void queryStudent(Scanner scanner) {
        System.out.println("请输入要查询的学生姓名：");
        String name = scanner.next();

        boolean found = false;
        for (Student student : students) {
            if (student.getName().equals(name)) {
                System.out.println("姓名：" + student.getName());
                System.out.println("年龄：" + student.getAge());
                System.out.println("性别：" + student.getGender());
                found = true;
                break;
            }
        }

        if (!found) {
            System.out.println("未找到该学生");
        }
    }

    private static class Student {
        private String name;
        private int age;
        private String gender;

        public Student(String name, int age, String gender) {
            this.name = name;
            this.age = age;
            this.gender = gender;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }

        public String getGender() {
            return gender;
        }

        public void setGender(String gender) {
            this.gender = gender;
        }
    }
}

以上程序使用Scanner类实现了与用户交互的功能，根据用户输入的不同选择执行不同的操作。在添加、删除、修改和查询学生信息时，使用了List<Student>集合存储自定义的学生对象集合，并使用了List集合的常用方法实现相关操作。