Java作业管理系统

package com.zzu.ti; public class User { private int type = 1; /** * 1 学生 2 教师 3 管理员 默认为学生 */ private String typeName; /** * 用户唯一标示， 学号 ，工号，或者其他,也是用户名 */ private String id; private String password; private String name; private String teacherSubject; public User() { } public String getTeacherSubject() { return teacherSubject; } public void setTeacherSubject(String teacherSubject) { this.teacherSubject = teacherSubject; } @Override public String toString() { return "User{" + "type=" + type + ", typeName='" + typeName + '\'' + ", id='" + id + '\'' + ", password='" + password + '\'' + ", name='" + name + '\'' + ", teacherSubject='" + teacherSubject + '\'' + '}'; } @Override public int hashCode() { return id.hashCode(); } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; User other = (User) obj; if (id == null) { if (other.id != null) return false; } else if (!id.equals(other.id)) { return false; } return true; } public User(int type, String id, String password, String name) { super(); this.type = type; this.id = id; this.password = password; this.name = name; setTypeName(); } public User(int type, String id, String password, String name, String teacherSubject) { super(); this.type = type; this.id = id; this.password = password; this.name = name; this.teacherSubject = teacherSubject; setTypeName(); } private void setTypeName() { if (this.getType() == 1) { this.typeName = "学生"; } if (this.getType() == 2) { this.typeName = "老师"; } if (this.getType() == 3) { this.typeName = "管理员"; } } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getType() { return type; } public void setType(int type) { this.type = type; } public String getId() { return id; } public void setId(String id) { this.id = id; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }