疯狂java 第三版 习题5.1 5.2

Student 类

class Student{
private String name;
private int age;
private String gender;
private String phone;
private String address;
private String email;

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 getPhone() {return phone;}
public String getAddress(){return address;}
public String getEmail() {return email;}
public void setPhone(String phone){this.phone = phone;}
public void setAddress(String address) {this.address = address;}
public void setEmail(String email) {this.email = email;}

public Student()
{
name = null;
age = 1;
gender = "boy";
phone = null;
address = null;
email = null;
}
public void init(String name, int age, String gender, String phone, String address, String email)
{
this.name = name;
this.age = age;
this.gender = gender;
this.phone = phone;
this.address = address;
this.email = email;
}
public Student(String name, int age, String gender, String phone, String address, String email)
{
init(name, age, gender, phone, address, email);
}

public void eat(String something)
{
System.out.println("eat " + something);
}
public void drink(String something)
{
System.out.println("drink " + something);
}
public void play(String something)
{
System.out.println("play "+ something);
}
public void sleep(int hours)
{
System.out.println("sleep " + hours + "hours");
}
public void showInfo()
{
System.out.println("name: " + name);
System.out.println("age: " + age);
System.out.println("gender: " + gender);
System.out.println("phone: " + phone);
System.out.println("address: " + address);
System.out.println("email: " + email);
}
}

通讯录类

import java.util.Scanner;


public class AddressBook{
static int MAX = 10;
private Student[] stus;

public AddressBook()
{
stus = new Student[MAX];
for(int i = 0; i < MAX; i++)
{
stus[i] = new Student();
}
}

public boolean setStudent(int index, String name, int age, String gender, String phone, String address, String email)
{
if(index >= 10)
{
System.out.println("The address book can include less than 10");
return false;
}
stus[index].init(name, age, gender, phone, address, email);
return true;
}

public int findByName(String name)
{
for(int i = 0; i < MAX; i++)
{
if(stus[i].getName().equals(name))
{
return i;
}
}
return -1;
}
public int findByEmail(String email)
{
for(int i = 0; i < MAX; i++)
{
if(stus[i].getEmail().equals(email))
{
return i;
}
}
return -1;
}

public void showStudent(int index)
{
stus[index].showInfo();
}

public static void main(String[] args)
{
AddressBook adList = new AddressBook();

for(int i = 0; i < MAX; i++)
{
adList.setStudent(i, "student" + i, 16 + i, i % 2 == 0?"boy":"girl", "", "address"+i, "email"+ i);
//adList.showStudent(i);
}

System.out.println("Please enter the studnet's name you want to find: ");
Scanner sc = new Scanner(System.in);
String name = sc.next();
int index;
index = adList.findByName(name);
if(index == -1)
{
System.out.println("Sorry, can't find "+ name);
}
else
{
adList.stus[index].showInfo();
}
}
}