《JAVA程序设计》实验报告

《JAVA1姓名 学号 日期试验题目输出自己姓名年龄身高体重，通过把握台和Eclipse运行packageschooltext;publicclassMyselfPrint{publicstaticvoidmain(String[]args){程序初稿 System.out.println(“ÐÕÃû£ºÑîÊËÇÙ£¬ÄêÁ䣺18£¬Éí¸ß£º160cm£¬ÌåÖØ£º100½ï“);}}及解决方法packageschooltext;publicclassMyselfPrint{publicstaticvoidmain(String[]args){调试后的 System.out.println(“ÐÕÃû£ºÑîÊËÇÙ£¬程序代码ÄêÁ䣺18£¬Éí¸ß£º160cm£¬ÌåÖØ£º100½ï);}}输出结果ÐÕÃû£ºÑîÊËÇÙ£¬ÄêÁ䣺18£¬Éí¸ß£º160cm£¬ÌåÖØ£º100½ï姓名杨仕琴学号54121022日期10.13姓名杨仕琴学号54121022日期10.13试验题目打印水仙花数publicclasstest1{publicstaticvoidmain(String[]args){for(intj1=0;j1<10;j1++){程序初稿 for(intj2=0;j2<10;j2++){for(intj3=0;j3<10;j3++){inti=(j1+j2*10+j3*100);into=(j1*j1*j1+j2*j2*j2+j3*j3*j3);if(i==o){.println(i);}37013713701371153407publicstaticvoidmain(String[]args){解决方法

}第一次输出结果：0for(intj1=0;j1<10;j1++){for(intj2=0;j2<10;j2++){调试后的 for(intj3=1;j3<10;j3++){程序代码 inti=(j1+j2*10+j3*100);into=(j1*j1*j1+j2*j2*j2+j3*j3*j3);if(i==o){So=(j1*j1*j1+j2*j2*j2+j3*j3*j3);if(i==o){System.out.println(i);}}}输出结果370371153407姓名杨仕琴学号54121022日期10.13试验题目编写三个类,依据命名空间规章分别放到不同包中,在代码中调用其它包中的类,并查看类文件在系统中的组织方式packageunit3_1;publicclassFish{程序初稿publicFish{System.out.println(“iamfishfrompackage1“);}}packageunit3_2;publicclassBird{publicBird{System.out.println(“iambirdfrompackage2“);}}packageunit3_3;publicclassPig{publicPig{System.out.println(“iampigfrompackage3“);}}packageunit3_3;importunit3_1.Fish;importunit3_2.Bird;publicclassUnit3Demo{publicstaticvoidmain(String[]args){Fishf=newFish;Birdb=newBird;Pigp=newPig;System.out.println(f.getClass.getResource(“/“).getPath);System.out.println(b.getClass.getResource(“/“).getPath);System.out.println(p.getClass.getResource(“/“).getPath);}}及解决方法调试后的程序代码输出结果iamfishfrompackage1iambirdfrompackage2iampigfrompackage3/C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin//C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin//C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin/姓名/C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin//C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin//C:/Users/Administrator/Desktop/jsoft/jd1210.yangshi/bin/姓名杨仕琴学号54121022日期10.13试验题目编写三个类ComputerTime,Plane,Car007 和一个接口程序Common.要求在将来假设增加第三种交通工具,不必修改之前任,.ComputerTime的四个参数,第一个是交通工具的类型,二到三是A,B,C.packageunit4;程序初稿publicabstractclassCommon2implementsCommon{doubleA=0;doubleB=0;doubleC=0;publicvoidsetA(doublea){A=a;}publicvoidsetB(doubleb){B=b;}publicvoidsetC(doublec){C=c;}publicabstractvoidTestV;}packageunit4;publicclassPlane2extendsCommon2{publicvoidTestV{doublev=A+B+C;System.out.println(“PlaneµÄËÙ¶ÈÊÇ£º“+v);}}packageunit4;publicclassCar0072extendsCommon2{publicvoidTestV{doublev;v=A*B/C;System.out.println(“car007µÄËÙ¶ÈÊÇ£º“+v);}}packageunit4;publicclassComputerTime2{publicstaticvoidmain(String[]args){}}所遇问题及 主函数传参问题,询问同学和网友获得解答解决方法packageunit4;publicinterfaceCommon{调试后的程序代码 publicvoidTestV;}packageunit4;importjava.util.Scanner;publicclassCar007implementsCommon{doubleA=0;doubleB=0;doubleC=0;publicvoidsetA(doublea){A=a;}publicvoidsetB(doubleb){B=b;}publicvoidsetC(doublec){C=c;}publicvoidTestV{doublev;v=A*B/C;+v);}}packageunit4;importjava.util.Set;publicclassPlaneimplementsCommon{doubleA=0;doubleB=0;doubleC=0;publicvoidsetA(doublea){A=a;}publicvoidsetB(doubleb){B=b;}publicvoidsetC(doublec){C=c;}publicvoidTestV{doublev=A+B+C;+v);}}packageunit4;publicclassComputerTime{publicstaticvoidmain(String[]args)throwsInstantiationException,IllegalAccessException,ClassNotFoundException{Plane com = (Plane)Class.forName(“unit4.Plane“).newInstance;doubleA=Double.parseDouble(args[1]);doubleB=Double.parseDouble(args[2]);doubleC=Double.parseDouble(args[3]);com.setA(A);com.setB(B);com.setC(C);com.TestV;}}输出结果《JAVA5输出结果姓名 杨仕琴 学号 54121022 日期 10.13试验题目编写Calculater.java加减乘除。packageunit5;程序初稿importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importjava.io.*;importjava.math.*;importjava.util.*;/**<p>Title: 用户应用界面计算器</p><p>Description: 包含简易计算与功能更加强大的科学计算</p><p>Copyright:Copyright(c)2023</p><p>Company:四……学</p>@author“mailto:chwencong@sina“chwencong@sina@version1.0*/publicclassCalculat{staticJTextFieldshow;//设置输入区，显示区staticdoubleopNum0;//存放操作数staticStringopChar“=“;//存放操作符staticbooleanflagtrue;//设置标志publicstaticvoidmain(String[]args){产生首界面——简易计算器}}所遇问题及 流布局方面。解决方法：看书加上问教师解决方法packageunit5;importjava.awt.*;调试后的importjava.awt.event.*;程序代码importjavax.swing.*;publicclassCalculaterextendsJFrameimplementsActionListener{privateJPaneljPanel1,jPanel2;privateJTextFieldresultField;privatebooleanend,add,sub,mul,div;privateStringstr;privatedoublenum1,num2;publicCalculater{setSize(300,240);Containercon=getContentPane;con.setLayout(newBorderLayout);jPanel1=newJPanel;jPanel2=newJPanel;resultField=newJTextField(“0“);jPanel1.add(resultField);con.add(jPanel1,BorderLayout.NORTH);s1=newJButton(“1“);s1.addActionListener(this);s2=newJButton(“2“);s2.addActionListener(this);s3=newJButton(“3“);s3.addActionListener(this);s4=newJButton(“4“);s4.addActionListener(this);s5=newJButton(“5“);s5.addActionListener(this);s6=newJButton(“6“);s6.addActionListener(this);s7=newJButton(“7“);s7.addActionListener(this);s8=newJButton(“8“);s8.addActionListener(this);s9=newJButton(“9“);s9.addActionListener(this);s0=newJButton(“0“);s0.addActionListener(this);b1=newJButton(“+“);b1.addActionListener(this);b2=newJButton(“-“);b2.addActionListener(this);b3=newJButton(“*“);b3.addActionListener(this);b4=newJButton(“/“);b4.addActionListener(this);f1=newJButton(“.“);f1.addActionListener(this);f2=newJButton(“=“);f2.addActionListener(this);jPanel2.add(s1);jPanel2.add(s2);jPanel2.add(s3);jPanel2.add(s4);jPanel2.add(s5);jPanel2.add(s6);jPanel2.add(s7);jPanel2.add(s8);jPanel2.add(s9);jPanel2.add(s0);jPanel2.add(f1);jPanel2.add(f2);con.add(jPanel2,BorderLayout.CENTER);}publicvoidnum(inti){Strings=null;s=String.valueOf(i);if(end){//假设数字输入完毕，则将文本框置零，重输入end=false;}if((resultField.getText).equals(“0“)){//假设文本框的内容为零，则掩盖文本框的内容resultField.setText(s);}else{//假设文本框的内容不为零，则在内容后面添加数字strresultField.getTexts;resultField.setText(str);}}publicvoidactionPerformed(ActionEvente)//数字大事if(e.getSource==s1)num(1);num(2);num(3);num(4);num(5);num(6);num(7);num(8);num(9);num(0);//符号大事sign(1);sign(2);sign(3);sign(4);//等号str=resultField.getText;if(str.indexOf(“.“)<=1){str+=“.“;resultField.setText(str);}}elseif(e.getSource==f2){if(add){num1=num1+num2;}elseif(sub){num1=num1-num2;}elseif(mul){num1=num1*num2;}elseif(div){num1=num1/num2;}end=true;}}publicvoidsign(ints){if(s==1){add=true;sub=false;mul=false;div=false;}elseif(s==2){add=false;sub=true;mul=false;div=false;}elseif(s==3){add=false;sub=false;mul=true;div=false;}elseif(s==4){add=false;sub=false;mul=false;div=true;}end=true;}publicstaticvoidmain(String[]args){Calculaterth1=newCalculater;th1.show;}}输出结果《JAVA6输出结果姓名 杨仕琴 学号 54121022 日期 10.13试验题目输入假设干个整数，并求和，直到遇到完毕标志999为止。在输入式，

整数这一点。对负数的自定义特别也有点问题。及 看书解决的自定义特别解决方法packageunit6;importjava.util.InputMismatchException;调试后的importjava.util.Scanner;程序代码publicclassSumget{privatestaticinti;privatestaticintsum;publicstaticvoidgoOnthrowsMyException{while(sum>=0){try{Scannersc=newScanner(System.in);i=sc.nextInt;}catch(InputMismatchExceptione){i=0;}if(i>=0){if(i!=999){sum=sum+i;}else{break;}}else{thrownewMyException(i,sum);}}}publicstaticclassMyExceptionextendsException{publicMyException(inti1,intsum1)throwsMyException{i1=0;i=i1;sum=sum1;goOn;}publicstaticvoidmain(String[]args) Sumgetsumget=newSumget;try{sumget.goOn;}catch(MyExceptione){e.printStackTrace;}}}}输出结果姓名杨仕琴学号54121022}}输出结果姓名杨仕琴学号54121022日期10.13试验题目packageunit7;publicclassBook{程序初稿privateStringname;privatedoublesinglePrice;publicStringgetName{returnname;}publicdoublegetSinglePrice{returnsinglePrice;}publicvoidsetName(Stringname){=name;}publicvoidsetSinglePrice(doublesinglePrice){this.singlePrice=singlePrice;}}packageunit7;publicclassBooks{Bookbook;privateintnum;publicBookgetBook{returnbook;}publicintgetNum{returnnum;}publicvoidsetBook(Bookbook){this.book=book;}publicvoidsetNum(intnum){this.num=num;}}packageunit7;java.util.HashMap;importjava.util.Iterator;importjava.util.Map;importjava.util.Scanner;publicclassShopCart{privateMapbook3=newHashMap; HashMap放东西intMaxOrder=2;intorder=1;publicMapgetBook3{ //返回一个购物车中HashMapreturnbook3;}publicvoidaddBooks //HashMap添BooksMaxOrderwhile(order<=MaxOrder){System.out.println(“请输入书名回车完毕“);Scannersc1=newScanner(System.in);Stringstr=sc1.next;System.out.println(“请输入该书单价回车完毕“);Scannersc2=newScanner(System.in);doubledou=sc2.nextDouble;System.out.println(“请输入该书购置数目回车完毕“);Scannersc3=newScanner(System.in);inti=sc3.nextInt;Booksbook1=newBooks;Bookbook2=newBook;book2.setName(str);book2.setSinglePrice(dou);book1.setBook(book2);book1.setNum(i);book3.put(order,book1);order++;}}publicvoidgetSum(HashMapbookss){//HashMap中的信息算出总价格doublesum=0.0;Booksbook5=newBooks;for (Iterator iterator = iterator.hasNext;){book5=(Books)iterator.next;sum += (book5.getNum) (book5.getBook.getSinglePrice);}System.out.println(sum);}}packageunit7;java.util.HashMap;importjava.util.Iterator;importjava.util.Map;importjava.util.Scanner;publicclassShopCartDemo{publicstaticvoidmain(String[]args){ShopCartshop=newShopCart;//建一个购物车shop.addBooks; HashMapbook4=(HashMap)shop.getBook3;shop.getSum(book4)//购物车算总价}}及解决方法

While条件写错，找了好久。packageunit7;调试后的publicclassBook程序代码 privateStringname;privatedoublesinglePrice;publicStringgetName{returnname;}publicdoublegetSinglePrice{returnsinglePrice;}publicvoidsetName(Stringname){=name;}publicvoidsetSinglePrice(doublesinglePrice){this.singlePrice=singlePrice;}}packageunit7;publicclassBooks{Bookbook;privateintnum;publicBookgetBook{returnbook;}publicintgetNum{returnnum;}publicvoidsetBook(Bookbook){this.book=book;}publicvoidsetNum(intnum){this.num=num;}}packageunit7;java.util.HashMap;importjava.util.Iterator;importjava.util.Map;importjava.util.Scanner;publicclassShopCart{privateMapbook3=newHashMap; HashMap放东西intMaxOrder=2;intorder=1;publicMapgetBook3{ //返回一个购物车中HashMapreturnbook3;}publicvoidaddBooks //HashMap添BooksMaxOrderwhile(order<=MaxOrder){System.out.println(“请输入书名回车完毕“);Scannersc1=newScanner(System.in);Stringstr=sc1.next;System.out.println(“请输入该书单价回车完毕“);Scannersc2=newScanner(System.in);doubledou=sc2.nextDouble;System.out.println(“请输入该书购置数目回车完毕“);Scannersc3=newScanner(System.in);inti=sc3.nextInt;Booksbook1=newBooks;Bookbook2=newBook;book2.setName(str);book2.setSinglePrice(dou);book1.setBook(book2);book1.setNum(i);book3.put(order,book1);order++;}}publicvoidgetSum(HashMapbookss){//HashMap中的信息算出总价格doublesum=0.0;Booksbook5=newBooks;for (Iterator iterator = iterator.hasNext;){book5=(Books)iterator.next;sum += (book5.getNum) (book5.getBook.getSinglePrice);}System.out.println(sum);}}packageunit7;java.util.HashMap;importjava.util.Iterator;importjava.util.Map;importjava.util.Scanner;publicclassShopCartDemo{publicstaticvoidmain(String[]args){ShopCartshop=newShopCart;//建一个购物车shop.addBooks; HashMapbook4=(HashMap)shop.getBook3;shop.getSum(book4)//购物车算总价}}输出结果姓名杨仕琴学号54121022日期10.13姓名杨仕琴学号54121022日期10.13试验题目packageunit8;程序初稿importjava.awt.*;java.awt.event.*;importjavax.swing.*;importjava.io.*;publicclassdddextendsJFrameimplementsActionListener{JTextAreatxtMessage;JButtonbtnRead,btnWrite;publicddd{super(“文本读写“);txtMessage=newJTextArea(15,30);btnReadnewJButton(“读取“);btnWritenewJButton(“写入“);this.setLayout(newFlowLayout);this.add(newJLabel(“文件内容：“));this.add(txtMessage);this.add(btnRead);this.add(btnWrite);btnRead.addActionListener(this);btnWrite.addActionListener(this);this.setSize(400,400);this.setVisible(true);this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}publicstaticvoidmain(String[]args){newddd;}publicvoidactionPerformed(ActionEvente){JButtonbtn=(JButton)e.getSource;StringfileName=“D:\\test.txt“;try{InputStreamis=newFileInputStream(fileName);BufferedReader br = new BufferedReader(newInputStreamReader(is));Stringline=null;StringBufferbuffer=newStringBuffer;while((line=br.readLine)!=null){buffer.append(line+“\n“);}txtMessage.setText(buffer.toString);br.close;is.close;}try{Stringmsg=txtMessage.getText;OutputStreamos=newFileOutputStream(fileName);PrintStreamps=newPrintStream(os);ps.print(msg);ps.close;os.close;}}}}所遇问题及 文件读写的类太多，查API查很久解决方法packageunit8;调试后的importjava.awt.*;程序代码importjava.awt.event.*;importjavax.swing.*;importjava.io.*;publicclassdddextendsJFrameimplementsActionListener{JTextAreatxtMessage;JButtonbtnRead,btnWrite;publicddd{super(“文本读写“);txtMessagenewJTextArea(1530);btnReadnewJButton(“读取“);btnWritenewJButton(“写入“);this.setLayout(newFlowLayout);this.add(newJLabel(“文件内容：“));this.add(txtMessage);this.add(btnRead);this.add(btnWrite);btnRead.addActionListener(this);btnWrite.addActionListener(this);this.setSize(400,400);this.setVisible(true);this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);}publicstaticvoidmain(String[]args){newddd;}@OverridepublicvoidactionPerformed(ActionEvente){JButtonbtn=(JButton)e.getSource;StringfileName=“D:\\test.txt“;try{InputStreamis=newFileInputStream(fileName);BufferedReader br = new BufferedReader(newInputStreamReader(is));Stringline=null;StringBufferbuffer=newStringBuffer;while((line=br.readLine)!=null){buffer.append(line+“\n“);}txtMessage.setText(buffer.toString);br.close;is.close;}catch(Exceptionex){JOptionPane.showMessageDialog(this,“I/O错误！“);}}try{Stringmsg=txtMessage.getText;OutputStreamos=newFileOutputStream(fileName);PrintStreamps=newPrintStream(os);ps.close;os.close;}catch(Exceptionex){JOptionPane.showMessageDialog(this,“I/O错误！“);}}}}输出结果姓名杨仕琴学号54121022日期10.13姓名杨仕琴学号54121022日期10.13试验题目设计一个火车销售模拟程序Ticket.java。假设火车站有100张火个销售点的售票状况。要求：打印出各个售票点的票号，各售票点不能售一样票号。packageunit9;程序初稿importjava.util.List;importjava.util.Random;importjava.util.concurrent.TimeUnit;publicclassprocess{publicstaticList<String>list=newArrayList<String>;publicstaticintcounter=1;publicstaticRandomrandom=newRandom;publicstaticvoidmain(String[]args){initTickets;processst=newprocess;for(inti=1;i<=5;i++){st.newSolder.start;}}privatesynchronizedStringgetOneTicket{if(list.size<=0)returnnull;returnlist.remove(0);}privatestaticvoidinitTickets{for(inti=1;i<=100;i++){list.add(““+i+“张票“);}}/**售票的类，专管售票*/classSolderextendsThread{publicfinalintid=counter++;publicSolder{this.setName(“售票窗口“+id);}@Overridepublicvoidrun{while(!this.isInterrupted){Stringticket=getOneTicket;if(ticket==null){System.out.println(this.getName+“:票已售空，明天请早“);break;}System.out.println(this.getName+“卖出了“+ticket);tryTimeUnit.MILLISECONDS.sleep(random.nextInt(5000));}catch(InterruptedExceptione){e.printStackTrace;}}}}}所遇问题及 对线程的理解问题，看书解决。解决方法packageunit9;调试后的importjava.util.ArrayList;程序代码importjava.util.List;importjava.util.Random;importjava.util.concurrent.TimeUnit;/**list作为容器这里没有生产者，由于票就那么多。Solder是消费者*/publicclassprocess{publicstaticList<String>list=newArrayList<String>;publicstaticintcounter=1;publicstaticRandomrandom=newRandom;publicstaticvoidmain(String[]args){initTickets;processst=newprocess;for(inti=1;i<=5;i++){st.newSolder.start;}}privatesynchronizedStringgetOneTicket{if(list.size<=0)returnnull;returnlist.remove(0);}privatestaticvoidinitTickets{for(inti=1;i<=100;i++){list.add(““+i+“张票“);}}/**售票的类，专管售票*/classSolderextendsThread{publicfinalintid=counter++;publicSolder{this.setName(“售票窗口“+id);}@Overridepublicvoidrun{while(!this.isInterrupted){Stringticket=getOneTicket;if(ticket==null){System.out.println(this.getName+“:票已售空，明天请早“);break;}System.out.println(this.getName+“卖出了“+ticket);tryTimeUnit.MILLISECONDS.sleep(random.nextInt(5000));}catch(InterruptedExceptione){e.printStackTrace;}}}}}输出结果《JAVA10姓名 杨仕琴 学号 54121022 日期 10.13试验题目用JavaDBmyDB,employee表。并输入相应数据〔1〕用JDBCemployee表中全部男〔2〕用用C编写程序，向e表中增加一条数据：2023，邢雪花，女，650〔3〕用JDBC编写程序，将no2023salary900，显示结果。packageunit10;importjava.sql.Connection;程序初稿importjava.sql.DriverManager;importjava.sql.ResultSet;importjava.sql.Statement;publicclassMydbDemo{publicstaticvoidmain(String[]args)throwsException{Connectioncn=null;cn =cn.setAutoCommit(false);//Statementst=cn.createStatement;st.execute(“create table employee(no varchar(8),sexvarchar(2),salaryfloat)“);st.execute(“insert into employee values(”1001”,””,”男”,675.20)“);st.execute(“insert into employee values(”1004”,”李香”,”女”,842.00)“);st.execute(“insertintoemployeevalues(”1001”,”王大山”,”男”,765.00)“);st.execute(“insertintoemployeevalues(”1001”,”赵玉花”,”女”,690.00)“);System.out.println(“创立员工表，插入四条记录“);//列出四条记录ResultSetrs1=st.executeQuery(“SELECT*FROMemployeewheresex=”男”“);System.out.println(“筛选出男性员工“);while(rs1.next){StringBuilderbuilder=newStringBuilder(rs1.getString(1));builder.append(“\t“);builder.append(rs1.getString(2));builder.append(“\t“);builder.append(rs1.getString(3));builder.append(“\t“);System.out.println(builder.toString);}st.execute(“insertintoemployeevalues(”2023”,”刑雪花”,”女”,650)“);System.out.println(“插入邢雪花的信息“);ResultSetrs2=st.executeQuery(“SELECT*FROMemployee“);while(rs2.next){StringBuilderbuilder=newStringBuilder(rs2.getString(1));builder.append(“\t“);builder.append(rs2.getString(2));builder.append(“\t“);builder.append(rs2.getString(3));builder.append(“\t“);System.out.println(builder.toString);}st.execute(“UPDATE employee SET salary=900 emno=”2023”“);System.out.println(“2023900“);ResultSetrs3=st.executeQuery(“SELECT*FROMemployee“);while(rs3.next){StringBuilderbuilder=newStringBuilder(rs3.getString(1));builder.append(“\t“);builder.append(rs3.getString(2));builder.append(“\t“);builder.append(rs3.getString(3));builder.append(“\t“);System.out.println(builder.toString);}st.execute(“droptableemployee“);System.out.println(“删除表EMPLOY