《JAVA语言》课程设计设计

《面向对象程序设计JAVA》课程设计大纲第1节1.1设计题目：已知银行整存整取存款不同期限的年息利率分别为：0.63%期限一年；0.66%期限二年；0.69%期限三年；0.75%期限五年；0.84%期限八年。1.2需求分析：要求输入存钱的本金和期限，求到期时能从银行的到的利息与本金的合计。1.3程序代码：importjava.io.*;publicclassA{publicstaticvoidmain(Stringargs[]){inta,years;doublex1,x2,x3,x5,x8;Strings1,s2;try{ System.out.println("请输入本金:");BufferedReaderbr=newBufferedReader(newInputStreamReader(System.in));s1=br.readLine();System.out.println("请输入年数:");s2=br.readLine();a=Integer.parseInt(s1);years=Integer.parseInt(s2);x1=1.0063*a;x2=(1.0066*a)*1.0066;x3=(1.0069*a)*(1.0069)*(1.0069);x5=(1.0075*a)*(1.0075)*(1.0075)*(1.0075);x8=(1.0084*a)*(1.0084)*(1.0084)*(1.0084)*(1.0084);if(years==1)System.out.println(x1);elseif(years==2)System.out.println(x2);elseif(years==3)System.out.println(x3);elseif(years==5)System.out.println(x5);elseif(years==8)System.out.println(x8);elseSystem.out.println("你悲剧啦！");}catch(IOExceptione){}}}1.4运行结果：第2节2.1设计题目：输入n值，打印边长为n的空心正六边形，其边由“*”组成。2.2importjava.io.*;publicclassB{publicstaticvoidmain(Stringargs[]){intn=0;Strings;try{System.out.print("请输入边长:");BufferedReaderbr=newBufferedReader(newInputStreamReader(System.in));s=br.readLine();n=Integer.parseInt(s);}catch(IOExceptione){}inti,j,k,m,p,l;for(i=1;i<=2*n-1;i++){for(j=1;j<=n-i||j<=i-n;j++){System.out.print("");}for(k=3*n-1-i;k>=n&&k<=2*n-1;k++)break;{System.out.print("*");for(m=2*n-i;m>=2*n-1&&m<=3*n-4||m>=1&&m<=n-2;m++){if(i>=n+1&&i<=2*n-2)continue;System.out.print("*");}}for(p=1;p<=i+n-3&&i<=n;p++){if(i==1)continue;System.out.print("");}for(l=3*n-4;l>=i;l--){if(i<=n||i==2*n-1)continue;System.out.print("");}System.out.println("*");}}}}3、编写一个类，这个类同时求出n个学生成绩的最高分、最低分、平均分以及超过平均分的人数，并编写主类完成：输入n个学生的成绩；调用此类进行统计；importjava.io.BufferedReader;importjava.io.IOException;importjava.io.InputStreamReader;publicclassC{int[]scores;intmax=0;intmin=0;doubleaverage=0.0;intovercount=0;inttotal=0;publicC(){try{intn=getInput("请输入学生个数:");scores=newint[n];for(inti=0;i<scores.length;i++){scores[i]=getInput("请输入第"+(i+1)+"个学生的成绩");}}catch(NumberFormatExceptione){e.printStackTrace();}catch(IOExceptione){e.printStackTrace();}getResult(scores);}publicIntegergetInput(Stringname)throwsNumberFormatException,IOException{System.out.println("请输入"+name+":");intn=Integer.parseInt(newBufferedReader(newInputStreamReader(System.in)).readLine());returnn;}//分析方法publicvoidgetResult(int[]scores){min=scores[0];for(inti=0;i<scores.length;i++){max=Math.max(max,scores[i]);min=Math.min(min,scores[i]);total+=scores[i];}average=total/scores.length;for(intj=0;j<scores.length;j++){if(scores[j]>average){overcount++;}}System.out.println("最高分:\t"+max);System.out.println("最低分:\t"+min);System.out.println("平均分:\t"+average);System.out.println("超过平均分的人数:\t"+overcount+"个人");System.out.println("总分:\t"+total);}publicstaticvoidmain(String[]args){newC();}}输出统计结果。编程实现实时动态运行的模拟时钟。importjavax.swing.*;importjava.awt.*;importjava.awt.geom.*;importjava.awt.event.*;importjava.util.Calendar;importjava.util.GregorianCalendar;/***ThisisthemainFunctionoftheprogram.*/publicclassClock{publicstaticvoidmain(String[]args){ClockFrameframe=newClockFrame();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}}/***Thisclassisusedtodefinethemainframeoftheclock*/classClockFrameextendsJFrame{//constructorfunctionpublicClockFrame(){setTitle("小时钟");setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);setLocation(DEFAULT_LOC_WIDTH,DEFAULT_LOC_HEIGHT);ClockPanelpanel=newClockPanel();add(panel);}//variablesoftheframeprivateintDEFAULT_LOC_WIDTH=300;privateintDEFAULT_LOC_HEIGHT=300;privateintDEFAULT_WIDTH=330;privateintDEFAULT_HEIGHT=330;}/***Thisclassisusedtodefindthemainpaneloftheclock*/classClockPanelextendsJPanel{publicvoidpaintComponent(Graphicsg){super.paintComponent(g);Graphics2Dg2=(Graphics2D)g;//getthetimeofthesystemGregorianCalendarcalendar=newGregorianCalendar();inthour=calendar.get(Calendar.HOUR);intminute=calendar.get(Calendar.MINUTE);intsecond=calendar.get(Calendar.SECOND);//drawtheclockfaceEllipse2DclockFace=newEllipse2D.Double();clockFace.setFrameFromCenter(CENTER_X,CENTER_Y,CENTER_X+RADIUS,CENTER_Y+RADIUS);g2.setColor(Color.BLUE);g2.draw(clockFace);//drawtheclockcenterEllipse2DclockCenter=newEllipse2D.Double();clockCenter.setFrameFromCenter(CENTER_X,CENTER_Y,CENTER_X+INNER_RADIUS,CENTER_Y+INNER_RADIUS);g2.setColor(Color.RED);g2.fill(clockCenter);//helptogettheexactpositionofthelinesdoublelenX,lenY,posX,posY;//drawtheclocksecondlineLine2DclockSecond=newLine2D.Double();doublesecondTime=(double)calendar.get(Calendar.SECOND);lenX=SECOND_LEN*Math.sin(2*Math.PI*secondTime/60.0);lenY=SECOND_LEN*Math.cos(2*Math.PI*secondTime/60.0);posX=CENTER_X+lenX;posY=CENTER_Y-lenY;clockSecond.setLine(CENTER_X,CENTER_Y,posX,posY);g2.setColor(Color.PINK);g2.draw(clockSecond);//drawtheclockminutelineLine2DclockMinute=newLine2D.Double();doubleminuteTime=(double)calendar.get(Calendar.MINUTE);lenX=MINUTE_LEN*Math.sin(2*Math.PI*(secondTime+60*minuteTime)/3600.0);lenY=MINUTE_LEN*Math.cos(2*Math.PI*(secondTime+60*minuteTime)/3600.0);posX=CENTER_X+lenX;posY=CENTER_Y-lenY;clockMinute.setLine(CENTER_X,CENTER_Y,posX,posY);g2.setColor(Color.GREEN);g2.draw(clockMinute);//drawtheclockhourlineLine2DclockHour=newLine2D.Double();doublehourTime=(double)calendar.get(Calendar.HOUR);lenX=HOUR_LEN*Math.sin(2*Math.PI*((secondTime+60*minuteTime+3600*hourTime)/43200.0));lenY=HOUR_LEN*Math.cos(2*Math.PI*((secondTime+60*minuteTime+3600*hourTime)/43200.0));posX=CENTER_X+lenX;posY=CENTER_Y-lenY;clockHour.setLine(CENTER_X,CENTER_Y,posX,posY);g2.setColor(Color.BLUE);g2.draw(clockHour);intdelay=1000;//actionListenerActionListenerdrawClock;drawClock=newActionListener(){publicvoidactionPerformed(ActionEventevt){repaint();}};//createtimernewTimer(delay,drawClock).start();}//variablesofthepanelprivateintHOUR_LEN=50;privateintMINUTE_LEN=70;privateintSECOND_LEN=90;privateintRADIUS=100;privateintINNER_RADIUS=2;privateintCENTER_X=150;privateintCENTER_Y=150;}编程实现约瑟夫问题。8个人站成一圈，从第1个人开始报数，报到5的人出圈，第6个人再从1开始报。依次类推，求出圈的序列。publicclassCount5Quit{ publicstaticvoidmain(Stringargs[]){ inta[]=newint[8]; for(inti=0;i<a.length;i++){ a[i]=i; } intj=0; intn=0; intident=1; while(ident<=a.length){ if(a[n]!=-1){ j++; } if(j==5){ System.out.println(a[n]); a[n]=-1; j=0; ident++; } n++; n=n%8;}}}importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;publicclassElsextendsJFrameimplementsKeyListener,Runnable{publicEls(){setSize(240,320);setUndecorated(true);intH=(int)(this.getToolkit().getScreenSize().height);intW=(int)(this.getToolkit().getScreenSize().width);setLocation(W/2-120,H/2-160);setResizable(false);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}publicvoidpaint(Graphicsg){super.paint(g);Graphics2Dg2=(Graphics2D)g;g2.setColor(Color.darkGray.brighter().brighter());//绘制小框格for(intm=192;m<=232;m+=10){g2.drawLine(m,52,m,92);}for(intm=52;m<=92;m+=10){g2.drawLine(192,m,232,m);}//绘制大框格for(intm=0;m<=180;m+=15){g2.drawLine(m,0,m,300);}for(intm=0;m<=300;m+=15){g2.drawLine(0,m,180,m);}//将值不非0的格子涂黑for(inti=1;i<13;i++){for(intj=0;j<20;j++){g2.setColor(Color.DARK_GRAY);if(o[i][j]!=0)g2.fillRect(15*i-13,15*j+2,13,13);}}//在小框格中绘制下一个的模型switch(nextMODE){case0:g2.fillRect(204,54,8,8);g2.fillRect(204,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(204,84,8,8);break;case1:g2.fillRect(194,64,8,8);g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(224,64,8,8);break;case2:g2.fillRect(214,64,8,8);g2.fillRect(214,74,8,8);g2.fillRect(214,84,8,8);g2.fillRect(204,84,8,8);break;case3:g2.fillRect(204,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);g2.fillRect(224,74,8,8);break;case4:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(204,84,8,8);break;case5:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(224,64,8,8);g2.fillRect(224,74,8,8);break;case6:g2.fillRect(204,54,8,8);g2.fillRect(204,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);break;case7:g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);g2.fillRect(224,74,8,8);g2.fillRect(224,64,8,8);break;case8:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(214,74,8,8);g2.fillRect(214,84,8,8);break;case9:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(224,64,8,8);g2.fillRect(204,74,8,8);break;case10:g2.fillRect(204,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);g2.fillRect(214,84,8,8);break;case11:g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);g2.fillRect(214,64,8,8);g2.fillRect(224,64,8,8);break;case12:g2.fillRect(214,64,8,8);g2.fillRect(214,74,8,8);g2.fillRect(204,74,8,8);g2.fillRect(204,84,8,8);break;case13:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(214,74,8,8);g2.fillRect(224,74,8,8);break;case14:g2.fillRect(204,64,8,8);g2.fillRect(214,64,8,8);g2.fillRect(204,74,8,8);g2.fillRect(214,74,8,8);break;}g2.setColor(Color.black);g2.drawLine(180,0,180,300);g2.setColor(Color.DARK_GRAY);g2.drawString("LEVEL",194,10);g2.drawString(""+LEVEL,210,28);g2.drawString("NEXT",196,45);g2.drawString("SCORE",193,110);g2.drawString(""+SCORE,205,130);g2.drawString("Xiong",205,160);g2.drawString("Xuan",205,180);}//方块下落的方法publicvoiddown(){Y++;switch(MODE){case0:o[X+2][Y]=1;o[X+2][Y+1]=1;o[X+2][Y+2]=1;o[X+2][Y+3]++;o[X+2][Y-1]=0;break;case1:o[X][Y+1]++;o[X+1][Y+1]++;o[X+2][Y+1]++;o[X+3][Y+1]++;o[X][Y]=0;o[X+1][Y]=0;o[X+2][Y]=0;o[X+3][Y]=0;break;case2:o[X+2][Y]=1;o[X+2][Y+1]=1;o[X+2][Y+2]++;o[X+1][Y+2]++;o[X+2][Y-1]=0;o[X+1][Y+1]=0;break;case3:o[X][Y]=1;o[X][Y+1]++;o[X+1][Y+1]++;o[X+2][Y+1]++;o[X][Y-1]=0;//o[X][Y]=0;o[X+1][Y]=0;o[X+2][Y]=0;break;case4:o[X+1][Y]=1;o[X+2][Y]++;o[X+1][Y+1]=1;o[X+1][Y+2]++;o[X+1][Y-1]=0;o[X+2][Y-1]=0;break;case5:o[X][Y]++;o[X+1][Y]++;o[X+2][Y]=1;o[X+2][Y+1]++;o[X][Y-1]=0;o[X+1][Y-1]=0;o[X+2][Y-1]=0;break;case6:o[X+1][Y]=1;o[X+1][Y+1]=1;o[X+1][Y+2]++;o[X+2][Y+2]++;o[X+1][Y-1]=0;//o[X+1][Y]=0;//o[X+1][Y+1]=0;o[X+2][Y+1]=0;break;case7:o[X][Y+1]++;o[X+1][Y+1]++;o[X+