第一篇：Java程序設(shè)計(jì)課程實(shí)驗(yàn)代碼及答案

Java程序設(shè)計(jì)課程實(shí)驗(yàn)

上機(jī)實(shí)踐1 初識(shí)JAVA.................................................................................................................3 實(shí)驗(yàn)

1一個(gè)簡(jiǎn)單的應(yīng)用程序....................................................................................................3 實(shí)驗(yàn)

2一個(gè)簡(jiǎn)單的JAVA APPLET程序......................................................................................3 實(shí)驗(yàn)

3聯(lián)合編譯........................................................................................................................4 上機(jī)實(shí)踐2 基本數(shù)據(jù)類型與控制語(yǔ)句........................................................................................5 實(shí)驗(yàn)1

輸出希臘字母表............................................................................................................5 實(shí)驗(yàn)2

回文數(shù)............................................................................................................................6 實(shí)驗(yàn)3

猜數(shù)字游戲....................................................................................................................8 上機(jī)實(shí)踐3 類與對(duì)象....................................................................................................................9 實(shí)驗(yàn)1

三角形、梯形和圓形的類封裝.....................................................................................9 實(shí)驗(yàn)

2實(shí)例成員與類成員......................................................................................................12 實(shí)驗(yàn)

3使用PACKAGE語(yǔ)句與IMPORT語(yǔ)句............................................................................14 上機(jī)實(shí)踐4 繼承與接口..............................................................................................................16 實(shí)驗(yàn)

1繼承..............................................................................................................................16 實(shí)驗(yàn)2

上轉(zhuǎn)型對(duì)象..................................................................................................................19 實(shí)驗(yàn)３ 接口回調(diào).....................................................................................................................21 上機(jī)實(shí)踐5 字符串、時(shí)間與數(shù)字..............................................................................................23 實(shí)驗(yàn)

1STRING類的常用方法..................................................................................................23 實(shí)驗(yàn)

2比較日期的大小..........................................................................................................24 實(shí)驗(yàn)

3處理大整數(shù)..................................................................................................................25 上機(jī)實(shí)踐6 組件及事件處理......................................................................................................26 實(shí)驗(yàn)1

算術(shù)測(cè)試......................................................................................................................26 實(shí)驗(yàn)2

信號(hào)燈..........................................................................................................................29 實(shí)驗(yàn)3

布局與日歷..................................................................................................................31 上機(jī)實(shí)踐7 組件及事件處理2...................................................................................................35 實(shí)驗(yàn)1

方程求根......................................................................................................................35 實(shí)驗(yàn)2

字體對(duì)話框..................................................................................................................38 實(shí)驗(yàn)3

英語(yǔ)單詞拼寫訓(xùn)練......................................................................................................41 上機(jī)實(shí)踐8 多線程.....................................................................................................................45 實(shí)驗(yàn)1

漢字打字練習(xí)..............................................................................................................45 實(shí)驗(yàn)2

旋轉(zhuǎn)的行星..................................................................................................................47 實(shí)驗(yàn)3

雙線程接力..................................................................................................................51 上機(jī)實(shí)踐9 輸入輸出流..............................................................................................................54 實(shí)驗(yàn)1

學(xué)讀漢字......................................................................................................................54 實(shí)驗(yàn)2

統(tǒng)計(jì)英文單詞字..........................................................................................................57 實(shí)驗(yàn)2

讀取ZIP文件...............................................................................................................61 上機(jī)實(shí)踐10 JAVA 中的網(wǎng)絡(luò)編程............................................................................................62 實(shí)驗(yàn)1

讀取服務(wù)器端文件......................................................................................................62 實(shí)驗(yàn)2

使用套接字讀取服務(wù)器端對(duì)象...................................................................................64 實(shí)驗(yàn)3

基于UDP的圖像傳輸................................................................................................67 上機(jī)實(shí)踐11 數(shù)據(jù)結(jié)構(gòu)................................................................................................................71 實(shí)驗(yàn)1

掃雷小游戲..................................................................................................................71 實(shí)驗(yàn)2

排序與查找..................................................................................................................76 實(shí)驗(yàn)3

使用TREESET排序......................................................................................................77 上機(jī)實(shí)踐12 JAVA SWING.......................................................................................................79 實(shí)驗(yàn)1

JLAYEREDPANE分層窗格............................................................................................79 實(shí)驗(yàn)2

使用表格顯示日歷......................................................................................................80 實(shí)驗(yàn)3

多文檔界面（MDI）...................................................................................................83 2

上機(jī)實(shí)踐1 初識(shí)Java 實(shí)驗(yàn)1 一個(gè)簡(jiǎn)單的應(yīng)用程序

1．答案：

【代碼1】：

System.out.println(“你好，很高興學(xué)習(xí)Java”);【代碼2】：

System.out.println(“We are students”);2．模板代碼

Hello.java public class Hello {

public static void main(String args[ ])

{

【代碼1】

//命令行窗口輸出“你好，很高興學(xué)習(xí)Java”

A a=new A();

a.fA();

} } class A {

void fA()

{

【代碼2】

//命令行窗口輸出“We are students”

} } 實(shí)驗(yàn)2 一個(gè)簡(jiǎn)單的Java Applet程序

1．答案：

【代碼1】：

g.drawString(“這是一個(gè)Java Applet 程序”,10,30);【代碼2】：

g.drawString(“我改變了字體”,20,50);2．模板代碼

FirstApplet.java import java.applet.*;3 import java.awt.*;public class FirstApplet extends Applet { public void paint(Graphics g){ g.setColor(Color.blue);【代碼1】//在Java Applet中繪制一行文字：“這是一個(gè)Java Applet 程序” g.setColor(Color.red);g.setFont(new Font(“宋體”,Font.BOLD,36));【代碼2】//在Java Applet中繪制一行文字：“我改變了字體” } } 實(shí)驗(yàn)3 聯(lián)合編譯

1．答案：

【代碼1】：

System.out.println(“你好，只需編譯我”);【代碼2】：

System.out.println(“I am A”);【代碼3】：

System.out.println(“I am B”);【代碼4】：

System.out.println(“I am C”);2．模板代碼

模板1：Hello.java public class MainClass { public static void main(String args[ ]){ 【代碼1】 //命令行窗口輸出“你好，只需編譯我” A a=new A();a.fA();B b=new B();b.fB();} }

模板2 ：A.java

public class A { void fA(){ 【代碼2】 //命令行窗口輸出“I am A” } } 模板3 ：B.java

public class B { void fB(){ 【代碼3】 //命令行窗口輸出“I am B” } } 模板4 ：C.java

public class C { void fC(){ 【代碼4】 //命令行窗口輸出“I am C” } }

上機(jī)實(shí)踐2 基本數(shù)據(jù)類型與控制語(yǔ)句實(shí)驗(yàn)1 輸出希臘字母表

1．答案：

【代碼1】： startPosition=(int)cStart;

【代碼2】： endPosition=(int)cEnd;

【代碼3】： c=(char)i;

2．模板代碼

GreekAlphabet.java

public class GreekAlphabet {

public static void main(String args[ ])

{

int startPosition=0,endPosition=0;

char cStart='α',cEnd='ω';

【代碼1】

//cStart做int型轉(zhuǎn)換據(jù)運(yùn)算，并將結(jié)果賦值給startPosition

【代碼2】

//cEnd做int型轉(zhuǎn)換運(yùn)算，并將結(jié)果賦值給endPosition

System.out.println(“希臘字母'α'在unicode表中的順序位置:”+(int)c);

System.out.println(“希臘字母表：”);

for(int i=startPosition;i<=endPosition;i++)

{

char c='