如何用java寫個(gè)小型 試題庫(kù)？

這個(gè)比較簡(jiǎn)單吧，去找一些CMS類的模板看一看，簡(jiǎn)單來說就是上傳題目到數(shù)據(jù)庫(kù)，取的時(shí)候random取一定數(shù)量的題出來就行了。

“只有客戶發(fā)展了，才有我們的生存與發(fā)展！”這是創(chuàng)新互聯(lián)的服務(wù)宗旨！把網(wǎng)站當(dāng)作互聯(lián)網(wǎng)產(chǎn)品，產(chǎn)品思維更注重全局思維、需求分析和迭代思維，在網(wǎng)站建設(shè)中就是為了建設(shè)一個(gè)不僅審美在線，而且實(shí)用性極高的網(wǎng)站。創(chuàng)新互聯(lián)對(duì)成都網(wǎng)站建設(shè)、網(wǎng)站制作、網(wǎng)站制作、網(wǎng)站開發(fā)、網(wǎng)頁(yè)設(shè)計(jì)、網(wǎng)站優(yōu)化、網(wǎng)絡(luò)推廣、探索永無止境。

題目管理：

1，題目的上傳

2，題目的編輯

3，題目的刪除

4，答案的保存

5，評(píng)分

用戶管理：

1，用戶注冊(cè)

2，用戶登錄

3，用戶信息編輯

4，用戶刪除

前臺(tái)：

1，如果題不多的話一個(gè)頁(yè)面就能搞定，一個(gè)表單，答題，提交，完事

2，查詢分?jǐn)?shù)

大概這樣就可以了，具體的一些需求你再仔細(xì)分析一下。

代碼只能靠你自己了~一個(gè)簡(jiǎn)單的demo也很容易，要做的完善也很麻煩。

求助大神如何用Java寫出這兩個(gè)題目的代碼？

第一題

package baidu;

public class Student {

protected String name;

protected int age;

public Student(String name, int age) {

this.name = name;

this.age = age;

}

public void show(){

System.out.println("name = " + name);

System.out.println("age = " + age);

}

}

---------------------------------

package baidu;

public class Undergraduate extends Student {

private String degree;

public Undergraduate(String name, int age, String degree) {

super(name, age);

this.degree = degree;

}

public void show(){

System.out.println("name = " + name);

System.out.println("age = " + age);

System.out.println("degree = " + degree);

}

}

------------------------

package baidu;

public class TestRun {

public static void main(String[] args) {

Student s = new Student("singi",12);

s.show();

Undergraduate ug = new Undergraduate("lily",23,"本科");

ug.show();

}

}

輸出:

name = singi

age = 12

name = lily

age = 23

degree = 本科

第二題:

package baidu;

public class Man {

String name;

public Man(String name) {

this.name = name;

}

public void business(){

System.out.println("在方法內(nèi)輸出談生意");

}

}

----------------

package baidu;

public class SuperMan extends Man {

String name;

public SuperMan(String name, String name1) {

super(name);

this.name = name1;

}

@Override

public void business() {

System.out.println("在方法內(nèi)輸出談幾個(gè)億的大單子");

}

public void fly(){

System.out.println("在方法內(nèi)輸出超人不會(huì)飛");

}

}

------------------

package baidu;

public class TestMan {

public static void main(String[] args) {

Man m = new Man("singi");

System.out.println(m.name);

m.business();

SuperMan sm = new SuperMan("lily","xiaoming");

System.out.println(sm.name);

sm.business();

sm.fly();

}

}

輸出:

singi

在方法內(nèi)輸出談生意

xiaoming

在方法內(nèi)輸出談幾個(gè)億的大單子

在方法內(nèi)輸出超人不會(huì)飛

java練習(xí)題求完整代碼

按照題目要求編寫的用javaBean規(guī)范設(shè)計(jì)的學(xué)生類Student的Java程序如下

需要?jiǎng)?chuàng)建user.java.test包,把Student.java文件和Test.java文件放入包中,編譯Student.java文件并且編譯運(yùn)行Test.java文件得到運(yùn)行結(jié)果

Student.java文件代碼如下

package user.java.test;

import java.io.Serializable;

public class Student implements Serializable{

private static final long serialVersionUID = 1L;

private String no;

private String name;

private double score;

public Student(){}

public Student(String no,String name,double score){

this.no=no;

this.name=name;

this.score=score;

}

public String getNo(){ return no;}

public void setNo(String no){ this.no=no;}

public String getName(){ return name;}

public void setName(String name){ this.name=name;}

public double getScore(){ return score;}

public void setScore(double score){ this.score=score;}

public String toString(){

return "學(xué)號(hào):"+no+",姓名:"+name+",成績(jī):"+score;

}

public static double getAvg(Student[] sArray){

double sum=0,avg;

for(int i=0;isArray.length;i++){

sum=sum+sArray[i].getScore();

}

avg=sum/sArray.length;

return avg;

}

}

Test.java文件代碼如下

package user.java.test;

public class Test{

public static void main(String[] args){

Student[] sArray=new Student[5];

sArray[0]=new Student("001","張三",89.5);

sArray[1]=new Student("002","李四",82.5);

sArray[2]=new Student("003","王五",93);

sArray[3]=new Student("004","趙六",73.5);

sArray[4]=new Student("005","孫七",66);

System.out.println("這些學(xué)生的平均分:"+Student.getAvg(sArray));

for(int i=0;isArray.length;i++){

System.out.println(sArray[i].toString());

}

}

}

這兩道題代碼怎么寫java？

創(chuàng)建一個(gè)名字為“ReportCard”的類，然后用下邊的內(nèi)容全部替換掉，你會(huì)成為全班最亮的仔。

import java.util.HashMap;

/**

* 學(xué)生成績(jī)單

*/

public class ReportCard {

public static void main(String[] args) {

ReportCard reportCard = new ReportCard("張三", "070602213");

reportCard.set("語(yǔ)文", 80.0);

reportCard.set("數(shù)學(xué)", 59.5);

reportCard.set("英語(yǔ)", 66.0);

reportCard.set("java", 80, 99.0);

reportCard.set("數(shù)據(jù)庫(kù)", 80, 66.0);

reportCard.set("毛概", null);

System.out.println(reportCard.getStudentName() + "語(yǔ)文分?jǐn)?shù):" + reportCard.get("語(yǔ)文"));

System.out.println(reportCard.getStudentName() + "數(shù)學(xué)考核結(jié)果:" + (reportCard.isPassed("數(shù)學(xué)") ? "合格" : "不合格"));

System.out.println(reportCard.getStudentName() + "期末是否掛科：" + (reportCard.isAllPassed() ? "否" : "是"));

}

// 學(xué)生姓名

private String studentName;

// 學(xué)生學(xué)號(hào)

private String studentNumber;

// 成績(jī)單

private HashMapString, CourseResult cards = new HashMap();

public ReportCard() {

}

public ReportCard(String studentName, String studentNumber) {

this.studentName = studentName;

this.studentNumber = studentNumber;

}

public Double get(String courseName){

CourseResult courseResult = cards.get(courseName);

return courseResult == null ? Double.NaN : courseResult.getStudentScore();

}

public void set(String courseName, Double studentScore){

CourseResult courseResult = new CourseResult(courseName, studentScore);

cards.put(courseName, courseResult);

}

public void set(String courseName, double passMark, Double studentScore){

CourseResult courseResult = new CourseResult(courseName, passMark, studentScore);

cards.put(courseName, courseResult);

}

public boolean isPassed(String courseName){

return cards.get(courseName).isPassed();

}

public boolean isAllPassed(){

for(CourseResult cr : cards.values()){

if ( ! cr.isPassed()) {

return false;

}

}

return true;

}

public String getStudentName() {

return studentName;

}

public String getStudentNumber() {

return studentNumber;

}

public void setStudentName(String studentName) {

this.studentName = studentName;

}

public void setStudentNumber(String studentNumber) {

this.studentNumber = studentNumber;

}

/**

* 課程

*/

class Course{

// 課程名稱

protected String courseName;

// 及格分

protected double passMark = 60;

public Course(String courseName, Double passMark) {

this.courseName = courseName;

if ( passMark != null) {

this.passMark = passMark;

}

}

}

/**

* 課程成績(jī)

*/

class CourseResult extends Course{

// 學(xué)生成績(jī)

private Double studentScore;

public CourseResult(String courseName, Double studentScore) {

this(courseName, null, studentScore);

}

public CourseResult(String courseName, Double passMark, Double studentScore) {

super(courseName, passMark);

this.studentScore = studentScore == null ? Double.NaN : studentScore;

}

public boolean isPassed(){

return studentScore = passMark;

}

public String getCourseName() {

return courseName;

}

public double getPassMark() {

return passMark;

}

public Double getStudentScore() {

return studentScore;

}

}

本文題目：java答題卡編輯代碼 javaweb答題系統(tǒng)
文章出自：http://www.chinadenli.net/article28/ddohgjp.html

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