🎐今天我们带领大家来实现人物对象的增、删、改、查(注:对象的删除以逻辑删除为主,在person类中设置“删除状态字段”,字删除该字段时,将状态改为有效。)
目录
- String name;
-
- String sex;
-
- LocalDate brithday;
-
- boolean remove = false;
- public person() {
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- super();
-
- }
-
-
-
- public person(String name, String sex, LocalDate brithday) {
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- super();
-
- this.name = name;
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- this.sex = sex;
-
- this.brithday = brithday;
-
- }
- @Override
-
- public String toString() {
-
- return "[name=" + name + ", sex=" + sex + ", brithday=" + brithday + "]\n";
-
- }
- 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 LocalDate getBrithday() {
-
- return brithday;
-
- }
-
-
-
- public void setBrithday(LocalDate brithday) {
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- this.brithday = brithday;
-
- }
- class person {
-
-
-
- String name;
-
- String sex;
-
- LocalDate brithday;
-
- boolean remove = false;
-
-
-
- public person() {
-
- super();
-
- }
-
-
-
- public person(String name, String sex, LocalDate brithday) {
-
- super();
-
- this.name = name;
-
- this.sex = sex;
-
- this.brithday = brithday;
-
- }
-
-
-
- @Override
-
- public String toString() {
-
- return "[name=" + name + ", sex=" + sex + ", brithday=" + brithday + "]\n";
-
- }
-
-
-
- public String getName() {
-
- return name;
-
- }
-
-
-
- public void setName(String name) {
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- this.name = name;
-
- }
-
-
-
- public String getSex() {
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- return sex;
-
- }
-
-
-
- public void setSex(String sex) {
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- this.sex = sex;
-
- }
-
-
-
- public LocalDate getBrithday() {
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- return brithday;
-
- }
-
-
-
- public void setBrithday(LocalDate brithday) {
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- this.brithday = brithday;
-
- }
-
-
-
- }
- public static void add(Vector
v) { -
- System.out.println("添加人物及属性");
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- System.out.println("请输入添加人物的姓名:");
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- String n = scan.next();
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- System.out.println("请输入添加人物的性别:");
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- String s = scan.next();
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- System.out.println("请输入添加人物的出生日期(格式:年 月 日)");
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- int y = scan.nextInt();
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- int m = scan.nextInt();
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- int d = scan.nextInt();
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- v.add(new person(n, s, LocalDate.of(y, m, d)));
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- System.out.println("添加成功");
-
- }
- public static void del(Vector
v) { -
- System.out.println("请输入删除人物的姓名:");
-
- B: for (;;) {
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- String n1 = scan.next();
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- int i;
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- for (i = 0; i < v.size(); i++) {
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- if (v.get(i).getName().equals(n1) && v.get(i).remove == false) {
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- v.get(i).remove = true;
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- System.out.println("删除成功!");
-
- if (i == v.size() - 1)
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- break B;
-
- }
-
- }
-
- if (i >= v.size())
-
- System.out.println("未找到该人物!请重新输入:");
-
- }
-
- }
- public static void find(Vector
v) { -
- System.out.println("请输入要查找人物的姓名:");
-
- C: for (;;) {
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- String n2 = scan.next();
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- int i1;
-
- for (i1 = 0; i1 < v.size(); i1++) {
-
- if (v.get(i1).getName().equals(n2) && v.get(i1).remove == false) {
-
- System.out.println("查找成功!该人物的相关属性为:" + v.get(i1));
-
- if (i1 == v.size() - 1)
-
- break C;
-
- }
-
- }
-
- if (i1 >= v.size())
-
- System.out.println("查找失败!请重新输入:");
-
- }
-
- }
- public static void chage(Vector
v) { -
- System.out.println("请输入您要修改的人物的姓名:");
-
- D: for (;;) {
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- String n3 = scan.next();
-
- int i2;
-
- for (i2 = 0; i2 < v.size(); i2++) {
-
- if (v.get(i2).getName().equals(n3) && v.get(i2).remove == false) {
-
- System.out.println("该用户存在,下面进入修改操作:");
-
- System.out.println("请输入修改后人物的姓名:");
-
- String n0 = scan.next();
-
- System.out.println("请输入修改后人物的性别:");
-
- String s0 = scan.next();
-
- System.out.println("请输入修改后人物的出生日期(格式:年 月 日)");
-
- int y0 = scan.nextInt();
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- int m0 = scan.nextInt();
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- int d0 = scan.nextInt();
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- v.get(i2).setName(n0);
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- v.get(i2).setSex(s0);
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- v.get(i2).setBrithday(LocalDate.of(y0, m0, d0));
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- System.out.println("恭喜你修改成功!!修改后的人物及其属性为:");
-
- System.out.println(v.get(i2));
-
- break D;
-
- }
-
- }
-
- if (i2 >= v.size()) {
-
- System.out.println("该人物不存在!请重新输入:");
-
- }
-
- }
-
- }
- public static void put(Vector
v) { -
- int i3;
-
- for (i3 = 0; i3 < v.size(); i3++) {
-
- if ( v.get(i3).remove == false)
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- System.out.println(v.get(i3));
-
- }
-
- }
- package one;
-
-
-
- import java.time.LocalDate;
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- import java.util.Calendar;
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- import java.util.Scanner;
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- import java.util.Vector;
-
-
-
- public class New {
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- static Scanner scan = new Scanner(System.in);
-
-
-
- public static void main(String[] args) {
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- // TODO Auto-generated method stub
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- person p1 = new person("liubei", "男", LocalDate.of(1993, 8, 15));
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- person p2 = new person("guanyu", "男", LocalDate.of(1997, 9, 24));
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- person p3 = new person("diaochan", "女", LocalDate.of(1994, 2, 28));
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- person p4 = new person("miyue", "女", LocalDate.of(1995, 12, 8));
-
- Vector
v1 = new Vector(); -
- v1.add(p1);
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- v1.add(p2);
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- v1.add(p3);
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- v1.add(p4);
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- A: for (;;) {
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- System.out.println("请输入你需要执行的操作的下标:");
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- System.out.println("1.添加人物及属性");
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- System.out.println("2.删除人物及属性");
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- System.out.println("3.查找人物");
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- System.out.println("4.修改人物属性");
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- System.out.println("5.输出所有人物及属性");
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- System.out.println("6.退出");
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- System.out.println("---------------------------------");
-
- int choice = scan.nextInt();
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- switch (choice) {
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- case 1:
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- add(v1);
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- break;
-
- case 2:
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- del(v1);
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- break;
-
- case 3:
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- find(v1);
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- break;
-
- case 4:
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- chage(v1);
-
- break;
-
- case 5:
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- put(v1);
-
- break;
-
- case 6:
-
- System.out.println("您已退出!!再见!");
-
- break A;
-
- default:
-
- System.out.println("输入错误,请重新输入:");
-
- }
-
- System.out.println("------------------------------------");
-
- }
-
- }
-
- public static void add(Vector
v) { -
- System.out.println("添加人物及属性");
-
- System.out.println("请输入添加人物的姓名:");
-
- String n = scan.next();
-
- System.out.println("请输入添加人物的性别:");
-
- String s = scan.next();
-
- System.out.println("请输入添加人物的出生日期(格式:年 月 日)");
-
- int y = scan.nextInt();
-
- int m = scan.nextInt();
-
- int d = scan.nextInt();
-
- v.add(new person(n, s, LocalDate.of(y, m, d)));
-
- System.out.println("添加成功");
-
- }
-
- public static void del(Vector
v) { -
- System.out.println("请输入删除人物的姓名:");
-
- B: for (;;) {
-
- String n1 = scan.next();
-
- int i;
-
- for (i = 0; i < v.size(); i++) {
-
- if (v.get(i).getName().equals(n1) && v.get(i).remove == false) {
-
- v.get(i).remove = true;
-
- System.out.println("删除成功!");
-
- if (i == v.size() - 1)
-
- break B;
-
- }
-
- }
-
- if (i >= v.size())
-
- System.out.println("未找到该人物!请重新输入:");
-
- }
-
- }
-
- public static void find(Vector
v) { -
- System.out.println("请输入要查找人物的姓名:");
-
- C: for (;;) {
-
- String n2 = scan.next();
-
- int i1;
-
- for (i1 = 0; i1 < v.size(); i1++) {
-
- if (v.get(i1).getName().equals(n2) && v.get(i1).remove == false) {
-
- System.out.println("查找成功!该人物的相关属性为:" + v.get(i1));
-
- if (i1 == v.size() - 1)
-
- break C;
-
- }
-
- }
-
- if (i1 >= v.size())
-
- System.out.println("查找失败!请重新输入:");
-
- }
-
- }
-
- public static void chage(Vector
v) { -
- System.out.println("请输入您要修改的人物的姓名:");
-
- D: for (;;) {
-
- String n3 = scan.next();
-
- int i2;
-
- for (i2 = 0; i2 < v.size(); i2++) {
-
- if (v.get(i2).getName().equals(n3) && v.get(i2).remove == false) {
-
- System.out.println("该用户存在,下面进入修改操作:");
-
- System.out.println("请输入修改后人物的姓名:");
-
- String n0 = scan.next();
-
- System.out.println("请输入修改后人物的性别:");
-
- String s0 = scan.next();
-
- System.out.println("请输入修改后人物的出生日期(格式:年 月 日)");
-
- int y0 = scan.nextInt();
-
- int m0 = scan.nextInt();
-
- int d0 = scan.nextInt();
-
- v.get(i2).setName(n0);
-
- v.get(i2).setSex(s0);
-
- v.get(i2).setBrithday(LocalDate.of(y0, m0, d0));
-
- System.out.println("恭喜你修改成功!!修改后的人物及其属性为:");
-
- System.out.println(v.get(i2));
-
- break D;
-
- }
-
- }
-
- if (i2 >= v.size()) {
-
- System.out.println("该人物不存在!请重新输入:");
-
- }
-
- }
-
- }
-
- public static void put(Vector
v) { -
- int i3;
-
- for (i3 = 0; i3 < v.size(); i3++) {
-
- if ( v.get(i3).remove == false)
-
- System.out.println(v.get(i3));
-
- }
-
- }
-
- }
-
-
-
- class person {
-
-
-
- String name;
-
- String sex;
-
- LocalDate brithday;
-
- boolean remove = false;
-
-
-
- public person() {
-
- super();
-
- }
-
-
-
- public person(String name, String sex, LocalDate brithday) {
-
- super();
-
- this.name = name;
-
- this.sex = sex;
-
- this.brithday = brithday;
-
- }
-
-
-
- @Override
-
- public String toString() {
-
- return "[name=" + name + ", sex=" + sex + ", brithday=" + brithday + "]\n";
-
- }
-
-
-
- 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 LocalDate getBrithday() {
-
- return brithday;
-
- }
-
-
-
- public void setBrithday(LocalDate brithday) {
-
- this.brithday = brithday;
-
- }
-
-
-
- }
🎃 注:该程序存在部分bug,检查出来的友友可以放在评论区,感谢!!!总代码或分代码有部分不解的友友可以在评论区提问或者关注博主,私信提问!