如何向一个定义好的java数组中添加姓名，求代码

代码如下：

public class Test {

    public static void main(String[] args) {

        String[] nameArr = new String[5]

        // 赋值4个

        nameArr[0] = "name0"

        nameArr[1] = "name1"

        nameArr[2] = "name2"

        nameArr[3] = "name3"

        // 再添加一个

        nameArr[4] = "最后添加的"

        // 遍历数组，分别取到数组中的元素

        for (int i = 0 i < nameArr.length i++) {

            System.out.print(nameArr[i] + " ")

        }

    }

}

运行效果：

import java.util.Scanner

public class 个人信息 

{

public static void main(String[] args) 

{

System.out.println("\n\t\t==========简单的个人信息录入==========\n")

init()

}//初始化!

private static void init()

{

/*int a1 = 073

long b1 = 0xa38f

System.out.println(a1+"....."+b1)*/

for (  )

{

System.out.println("请输入姓名:")

String a=Input.getName()

System.out.println("请输入年龄:")

int b=Input.getAge()

System.out.println("请输入学历:")

String c=Input.getEducation()

System.out.println("你输入的信息^_^\t名字:"+a+"     年龄:"+b+"     学历:"+c+"\n")

}

}

}

class Input

{

private static Scanner sc=new Scanner(System.in)

private Input(){}

static String getName()

{

String name=sc.next()

return name

}

static int getAge()

{

int age=sc.nextInt()

return age

}

static String getEducation()

{

String education=sc.next()

return education

}

}

首先在任一目录保存以下代码

编译代码：javac PersonInfo.class

执行代码：java PersonInfo

代码输出效果如下：

id = 001, name = 张三, sex = 男, 年龄 = 12, 身份z = 140421198809021102

id = 002, name = 李四, sex = 女, 年龄 = 25, 身份z = 280421198809022103

id = 003, name = 王五, sex = 男, 年龄 = 33, 身份z = 355421198809021104

id = 004, name = 赵六, sex = 女, 年龄 = 17, 身份z = 472421198809021105

import java.util.ArrayList

import java.util.List

public class PersonInfo{

private String id//id

private String name//姓名

private int sex//性别

private int age//年龄

private String idCard//身份z

@Override

public String toString() {

return "id = " + getId() + ", name = "

+ getName() + ", sex = " + (getSex()==0?"男":"女")

+ ", 年龄 = " + getAge() + ", 身份z = " + getIdCard()

}

public PersonInfo(String id, String name, int sex, int age, String idCard) {

this.id = id

this.name = name

this.sex = sex

this.age = age

this.idCard = idCard

}

public static void main(String[] args) {

PersonInfo p1 = new PersonInfo("001", "张三", 0, 12, "140421198809021102")

PersonInfo p2 = new PersonInfo("002", "李四", 1, 25, "280421198809022103")

PersonInfo p3 = new PersonInfo("003", "王五", 0, 33, "355421198809021104")

PersonInfo p4 = new PersonInfo("004", "赵六", 1, 17, "472421198809021105")

List<PersonInfo>personList = new ArrayList<PersonInfo>()

personList.add(p1)

personList.add(p2)

personList.add(p3)

personList.add(p4)

for(PersonInfo p : personList){

System.out.println(p)

}

}

public String getId() {

return id

}

public void setId(String id) {

this.id = id

}

public String getName() {

return name

}

public void setName(String name) {

this.name = name

}

public int getSex() {

return sex

}

public void setSex(int sex) {

this.sex = sex

}

public int getAge() {

return age

}

public void setAge(int age) {

this.age = age

}

public String getIdCard() {

return idCard

}

public void setIdCard(String idCard) {

this.idCard = idCard

}

}

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