Java集合 练习代码

package test10; public class Users { private String username; private String password; private int age; private String sex; private String name; public Users() { super(); } public Users(String username, String password) { super(); this.username = username; this.password = password; } public Users(String username, String password, int age, String sex, String name) { super(); this.username = username; this.password = password; this.age = age; this.sex = sex; this.name = name; } @Override public String toString() { return "Users [username=" + username + ", password=" + password + ", age=" + age + ", sex=" + sex + ", name=" + name + "]"; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + age; result = prime * result + ((name == null) ? 0 : name.hashCode()); result = prime * result + ((password == null) ? 0 : password.hashCode()); result = prime * result + ((sex == null) ? 0 : sex.hashCode()); result = prime * result + ((username == null) ? 0 : username.hashCode()); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Users other = (Users) obj; if (age != other.age) return false; if (name == null) { if (other.name != null) return false; } else if (!name.equals(other.name)) return false; if (password == null) { if (other.password != null) return false; } else if (!password.equals(other.password)) return false; if (sex == null) { if (other.sex != null) return false; } else if (!sex.equals(other.sex)) return false; if (username == null) { if (other.username != null) return false; } else if (!username.equals(other.username)) return false; return true; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getName() { return name; } public void setName(String name) { this.name = name; } }