java定義用戶信息類

① java:定義一個表示學生信息的類student

樓主問這種基礎東西，是初學者，樓上那樣寫交給老師的話，老師一看就知道不是自己寫的了。
(1)
public class Student {
String sNO;//學號
String sName;//姓名
char sSex;//性別
int sAge;//年齡
int sJava;//成績
public String getNO() {
return sNO;
}
public String getName() {
return sName;
}
public char getSex() {
return sSex;
}
public int getSAge() {
return sAge;
}
public int getJava() {
return sJava;
}
}
(2,3)
public class Test {
public static void main(String[] args) {
Student s1 = new Student();//學生對象一
Student s2 = new Student();//學生對象二
//學生一信息
s1.sNO="430331";
s1.sName="Lucy";
s1.sSex='女';
s1.sAge=19;
s1.sJava=88;
//學生二信息
s2.sNO="430332";
s2.sName="Lily";
s2.sSex='女';
s2.sAge=19;
s2.sJava=87;

System.out.println("兩名學生的信息如下：");
System.out.println("學號\t姓名\t年齡\t性別\t成績");
System.out.println(s1.sNO+"\t"+s1.sName+"\t"+s1.sAge+"\t"+s1.sSex+"\t"+s1.sJava);
System.out.println(s2.sNO+"\t"+s2.sName+"\t"+s2.sAge+"\t"+s2.sSex+"\t"+s2.sJava);
System.out.println("兩學生的平均成績是"+(s1.sJava+s2.sJava)/2.0);
}

}

② java定義一個表示學生信息的類

提供代碼供參考：

classstudent{
		StringsNO,sName,sSex;
		intsAge;
		doublesJava;
		publicstudent(Stringa,Stringb,Stringc,intd,doublee){
			sNO=a;
			sName=b;
			sSex=c;
			sAge=d;
			sJava=e;}
		StringgetNo(){
			returnsNO;}	
			
		StringgetName(){
			returnsName;}
			
		StringgetSex(){
			returnsSex;}
			
		intgetAge(){
			returnsAge;}
			
		doublegetJava(){
			returnsJava;}
		voidshow(){
			System.out.println("姓名:"+getName());
			System.out.println("學號:"+getNo());
			System.out.println("性別:"+getSex());
			System.out.println("年齡:"+getAge());
			System.out.println("Java成績:"+getJava());}
}

publicclassTestStudent{
	publicstaticvoidmain(String[]args){
doubleavrage,K1,K2,K3,K4,K5;
		studentA1=newstudent("13190310","張一","男",18,80);
		studentA2=newstudent("13190311","王二","女",19,83);
		studentA3=newstudent("13190312","李三","男",19,82);
		studentA4=newstudent("13190313","趙四","女",20,88);
		studentA5=newstudent("13190314","蔣五","女",20,90);
		A1.show();
		System.out.println();
		A2.show();
		System.out.println();
		A3.show();
		System.out.println();
		A4.show();
		System.out.println();
		A5.show();
		System.out.println();
		K1=A1.getJava();
		K2=A2.getJava();
		K3=A3.getJava();
		K4=A4.getJava();
		K5=A5.getJava();
		avrage=(K1+K2+K4+K3+K5)/5;
		System.out.println("Java平均成績:"+avrage);
		doublea[]={K1,K2,K3,K4,K5};
		doublemax=0,min=0,ck;
		for(inti=0;i<4;i++){
			max=K1;
		if(max<a[i+1]){
			ck=max;
			max=a[i+1];
			a[i+1]=ck;}			}
		System.out.println("Java的最高分為:"+max);
		for(inti=0;i<4;i++){
			max=K1;
		if(min>a[i+1]){
			ck=min;
			min=a[i+1];
			a[i+1]=ck;}
		}
		System.out.println("Java的最低分為:"+max);
}
}

③ 關於JAVA的問題：什麼是類寫出java中類定義的格式

類（Class）是面向對象程序設計（OOP，Object-Oriented Programming）實現信息封裝的基礎。類是一種用戶定義的專引用數據類型，也屬稱類類型。每個類包含數據說明和一組操作數據或傳遞消息的函數。類的實例稱為對象。

定義一個類的格式如下圖：

(3)java定義用戶信息類擴展閱讀：

對象可以訪問類的成員，但並不是所有成員都可以被訪問，能否訪問取決於聲明該成員時所用的關鍵字（public/protected/private）。具體規則如下：

1、類的公有成員可以被該類，其派生類和類實例化的對象訪問。

2、類的保護成員可以被該類及其派生類訪問，不可以被該類的對象訪問。

3、類的私有成員可以被該類訪問，不可以被派生類及其該類的對象訪問。

④ 1. 使用JAVA定義一個表示學生信息的類Student,

publicclassStudent{
privateintid;//表示學號，
privateStringname;//表示姓名，
privateStringsex;//表示性別，
privateintage;//表示年齡，
privatedoublecomputer_score;//表示計算機課程的成績內,
privatedoubleEnglish_score;//表示英語課容的成績,
privatedoubleMaths_score;//表示數學課的成績,
privatedoubletotal_score;//表示總成績,
privatedoubleave_score;//表示平均成績。

//自動生成getset方法
public...get...

publicvoidset...
}

⑤ java創建一個用戶類

public class User
{

private String userName;//用戶名
private String password;//密碼
private String name;//真名
private int age;//年齡
private String tel;//聯系方式

public User()
{

}

public User(String userName, String passWord, String name, int age, String tel) {
this.userName = userName;
this.passWord = passWord;
this.name = name;
this.age = age;
this.tel = tel;

System.out.println("注冊成功！");
}

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 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 getTel() {
return tel;
}

public void setTel(String tel) {
this.tel = tel;
}

@Override
public String toString()
{
return "用戶名：" + getUserName() + " " + "密碼：" + getPassWord() + " "
+"真名：" + getName() + " " + "年齡：" + getAge() + " "
+"聯系方式：" + getTel();
}

}

======================================================

public static void main(String[] args)
{

User user = new User();
user.setUserName("神官");
user.setPassWord("123456");
user.setName("麥依");
user.setAge(30);
user.setTel("15027777777");
System.out.println(user.toString());

user = new User("神官00","000000","=.=",18,"999xxx898@qq.com");
System.out.println(user.toString());

}

⑥ java設計一個表示用戶的User類

public class Use {
public static void main(String args[]){
User user1=new User();
user1.setUsername("joyce717533");
user1.setPassword("千總四級");
System.out.println("user1:"+user1.toString());
User user2=new User("joyce717533");
user2.setPassword("千總四級");
System.out.println("user2:"+user2.toString());
User user3=new User("joyce717533","千總四級");
System.out.println("user3:"+user3.toString());

}
}

class User {
public String username;

public String password;

public static int record;

public User() {

}
public User(String username){
this.username=username;
}
public User(String username,String password){
this.username=username;
this.password=password;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}
public String toString(){
return "username: "+username+",passwrod: "+password;
}
}

已經給樓主寫好了...祝樓主早日成功哈!!!!!