数据结构回顾版-java数据结构-存储对象

 创建

package ch01;public class Person {// 用户姓名private String name;// 用户年龄private int age;// 用户性别private String sex;public Person(String name, int age, String sex) {super();this.name = name;this.age = age;this.sex = sex;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public void display() {System.out.print("姓名:" + this.name);System.out.print(".年龄:" + this.age);System.out.print(".性别:" + this.sex);System.out.println();}}

 

 

package ch01;public class PersonArray {// 数组private Person[] arr;// 数组中有效数据的大小private int elems;//默认构造函数public PersonArray() {arr = new Person[50];}public PersonArray(int max) {arr = new Person[max];}// 插入数据public void insert(Person person) {arr[elems] = person;elems++;}// 显示数据public void display() {for (int i = 0; i < elems; i++) {arr[i].display();}System.out.println();}// 查找数据public int find(String name) {int i;for (i = 0; i < elems; i++) {if (name.equals(arr[i].getName())) {break;}}if (i == arr.length) {return -1;} else {return i;}}// 删除数据public void delete(Person person) {if (find(person.getName()) == -1) {System.out.println("查找不到指定数据，删除失败");} else {for(int i = find(person.getName());i < elems; i++) {arr[i] = arr[i + 1];}}elems--;}// 删除数据public void delete(String name) {if (find(name) == -1) {System.out.println("查找不到指定数据，删除失败");} else {for(int i = find(name);i < elems; i++) {arr[i] = arr[i + 1];}}elems--;}// 修改数据public void change(Person oldPerson, Person newPerson) {if(find(oldPerson.getName()) == -1) {System.out.println("查找不到指定数据，修改失败");} else {arr[find(oldPerson.getName())] = newPerson; }}}

 

package ch01;public class TestPersonArray {public static void main(String[] args) {PersonArray pa = new PersonArray();//创建对象Person p1 = new Person("张三",20,"男");Person p2 = new Person("李四",21,"男");Person p3 = new Person("王五",22,"女");Person p4 = new Person("赵六",23,"男");Person p5 = new Person("李斯",24,"男");// 插入操作pa.insert(p1);pa.insert(p2);pa.insert(p3);pa.insert(p4);pa.insert(p5);pa.display();// 删除操作pa.delete(p4);pa.display();pa.delete("李斯");pa.display();//修改操作Person newPerson = new Person("帅哥",40,"男");pa.change(p1, newPerson);pa.display();}}