计算机组成原理课程设计报告

PAGE2PAGE1课程设计说明书计算机组成原理算法实现（五）专业计算机科学与技术学生姓名班级学号指导教师完成日期1课程设计目的本课程设计是在学完本课程教学大纲规定的全部内容、完成所有实践环节的基础上，旨在深化学生学习的计算机组成原理课程基本知识，进一步领会计算机组成原理的一些算法，并进行具体实现，提高分析问题、解决问题的综合应用能力。2课程设计内容与要求计算机组成原理算法实现（五）能够实现机器数的真值还原（定点整数）、定点整数的单符号位补码加减运算、定点整数的原码一位乘法运算和浮点数的加减运算。3功能模块详细设计系统进入（主）窗体的设计：菜单需要在输入口令正确后方可激活使用。口令输入错误时要给出重新输入口令的提示，三次口令输入错误应该禁止使用。if(text1.getText().equals(s)){ i=1; JOptionPane.showMessageDialog(this,"口令正确,请选择菜单栏的操作", "正确",JOptionPane.INFORMATION_MESSAGE); text1.setEnabled(false); text1.setVisible(false); a22.setVisible(true); a2.setVisible(false); }else{ m++; JOptionPane.showMessageDialog(this,"您输入的口令不正确","警告", JOptionPane.WARNING_MESSAGE); text1.setText(null); } if(m>3){ JOptionPane.showMessageDialog(this,"您三次口令错误，确定后退出！","警告", JOptionPane.ERROR_MESSAGE); System.exit(0); } （2）选择主窗体中“定点整数真值还原”时进入下图所示的窗体：if(e.getSource()==button2){ com=(Component)e.getSource(); e=SwingUtilities.convertMouseEvent(com,e,this); Strings=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); }}else{ n1=s.length(); s1=s.substring(1,n1); text2.setText("-"+s1); }if(e.getSource()==button3){ s=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); chara[]=s1.toCharArray(); for(i=0;i<=a.length-1;i++){ if(a[i]=='0') a[i]='1'; elseif(a[i]=='1') a[i]='0'; }}}if(e.getSource()==button4){ s=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); j=s1.lastIndexOf("1")+1; s1=s.substring(1,j); chara[]=s1.toCharArray(); for(i=0;i<=a.length-1;i++){ if(a[i]=='0') a[i]='1'; elseif(a[i]=='1') a[i]='0'; }}}在上面的窗体中按“输入”按扭时，将输入焦点设置为最上面的一个文本框上。输入一个定点整数形式的机器数（如101010或011010）后，按“原真值”、“反真值”、“补真值”或“移真值”按扭中的任一个后，将在第二个文本框中显示对应的真值。选择“返回”按扭时回到主窗体。（3）选择主窗体中“定点整数单符号位补码加减法”时进入下图所示的窗体：if(i1.length!=i2.length) data1.setText("请输入数值位长度相等的数字！"); else{ out=jia(i1,i2); output=newString(out); data2.setText(output); } if(i1.length!=i2.length) data1.setText("请输入数值位长度相等的数字！"); else{ out=jian(i1,i2); output=newString(out); data3.setText(output); }在上面的窗体中按“输入”按钮时，将输入焦点设置为最上面的两个文本框。输入第一个、第二个数的补码，按“加法”、“减法”按钮中的任一个，在第三、第四文本框中显示对应的补码结果。选择“返回”按钮时回到主窗口。（4）选择主窗体中“定点整数原码乘法”时进入下图所示的窗体：for(inti=beichengshu.length();i>0;i--)//按照乘数各个位判别 { if(in2[i]=='0'){ str[i]=newString(c)+newString(c); } elseif(in2[i]=='1'){ str[i]=beichengshu+newString(c); } } for(inti=1;i<=beichengshu.length();i++)//实现右移操作 { intk; char[]buwei=newchar[i]; for(k=0;k<i;k++) { buwei[k]='0'; } str[i]=newString(buwei) +str[i].substring(0,str[i].length()-i); }在上面的窗体中按“输入”按钮时，将输入焦点设置为最上面的两个文本框。输入一位符号位的被乘数和一位符号位的乘数，按“乘法”按钮，在第三个文本框中显示对应的一位符号位的乘法结果。选择“返回”按钮时回到主窗口。（5）选择主窗体中“浮点加减法”时进入下图所示的窗体：if((sj1.length()!=sj2.length())||(st1.length()!=st2.length())){ JOptionPane.showMessageDialog(this,"请输入长度相等的数据！","错误", JOptionPane.ERROR_MESSAGE); } else{ Strings[]=myAdd(sj1,sj2,st1,st2); data4.setText(s[0]); data5.setText(s[1].substring(0,1)+"0."+s[1].substring(1)); } if((sj1.length()!=sj2.length())||(st1.length()!=st2.length())){ JOptionPane.showMessageDialog(this,"请输入长度相等的数据！","错误", JOptionPane.ERROR_MESSAGE); } else{ temp=st2.substring(0,st2.lastIndexOf("1")); charc[]=temp.toCharArray(); for(inti=0;i<c.length;i++){ if(c[i]=='0') c[i]='1'; else c[i]='0'; }}在上面的窗体中按“输入”按钮时，将输入焦点设置为最上面的四个文本框。分别输入第一个数和第二个数的阶码，按“加法”或者“减法”按钮，在下面四个文本框中显示结果。选择“返回”按钮时回到主窗口。 4设计小结这次计算机组成原理课程设计使我的能力得到了很大的提高，此外使我对本学期所学的计算机组成原理的知识得到了提高，加深了对计算机工作原理的认识，我也体会到了作为一个大学生，要想学有所得，就得学习主动，不要什么都希望别人亲自传授，面对问题要自己去努力解决，多问问身边的同学，多动手查查，多上网找找，所以要想成功就得事事做到细心，耐心，恒心。当然，在这个过程中，也有许多问题与困难出现。有的经过自己的思考或与他人合作能得以解决，有的也的确费了一些周折。但无论如何，这次对于课题的能够实现机器数的真值还原（定点整数）、定点整数的单符号位补码加减运算、定点整数乘法运算和浮点数的加减运算的设计总体来说还是比较令人满意的，不仅用到了课堂上所学到的知识，还加入了自己的一些想法与观点，而且在对编程这一方面也有了很多新的感悟与提高。不得不说是获益良多。参考文献[1]白中英.计算机组成原理（第四版）[M].北京:科学出版社,2010.[2]

黄理，洪亮，曹林有，张勇.JSP高级编程[M].

北京：北京希望电子出版社,2001.[3]

连洪武.Eclipse

Web开发从入门到精通(实例版)[M].

北京：清华大学出版社,2007

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王国辉、李立文.JSP数据库系统开发完全手册[M].

北京：人民邮电出版社，2006.源程序MainFrame.javapublicclassMainFrame{ publicstaticvoidmain(Stringargs[]){ newNewclass(null); }}Newclass.javaimportjava.awt.*;importjava.awt.event.*;importjavax.swing.JOptionPane;publicclassNewclassextendsFrameimplementsActionListener{ staticinti=0; staticintm=1; Labela1,a2,a22; TextFieldtext1; Buttonbutton1,m1,m2,m3,m4; Fontf; Newclass(Strings){ super(s); setLayout(null); f=newFont("楷体",Font.BOLD,20); m1=newButton("机器数的真值还原(定点整数)"); m2=newButton("定点整数单符号位补码加减运算"); m3=newButton("定点整数的原码乘法"); m4=newButton("浮点数的加减运算"); m1.addActionListener(this); m2.addActionListener(this); m3.addActionListener(this); m4.addActionListener(this); m1.setBounds(10,30,160,25); m2.setBounds(175,30,190,25); m3.setBounds(370,30,120,25); m4.setBounds(495,30,95,25); add(m1); add(m2); add(m3); add(m4); a1=newLabel("计算机组成原理算法实现（五）",Label.CENTER); a2=newLabel("输入口令(000)："); a22=newLabel("登陆成功",Label.CENTER); a1.setBounds(150,100,300,40); a1.setBackground(Color.WHITE); a1.setFont(f); a2.setBounds(150,200,90,25); a2.setBackground(Color.white); a22.setBounds(200,200,200,25); a22.setForeground(Color.white); a22.setBackground(Color.green); a22.setVisible(false); text1=newTextField(18); text1.setEchoChar('*'); text1.setBounds(240,200,200,25); button1=newButton("确认"); button1.setBounds(270,250,70,30); button1.addActionListener(this); add(a1); add(a2); add(a22); add(text1); add(button1); setBackground(Color.white); setBounds(100,100,640,400); setVisible(true); validate(); addWindowListener(newWindowAdapter(){ publicvoidwindowClosing(WindowEvente){ System.exit(0); } }); } publicstaticvoidmain(Stringargs[]){ newNewclass("计算机组成原理"); } publicvoidactionPerformed(ActionEvente){ Strings=newString("000"); if(e.getSource()==button1){ while(i==0&&m<=3&&(!(text1.getText().equals("")))){ if(text1.getText().equals(s)){ i=1; JOptionPane.showMessageDialog(this,"口令正确,请选择菜单栏的操作", "正确",JOptionPane.INFORMATION_MESSAGE); text1.setEnabled(false); text1.setVisible(false); a22.setVisible(true); a2.setVisible(false); }else{ m++; JOptionPane.showMessageDialog(this,"您输入的口令不正确","警告", JOptionPane.WARNING_MESSAGE); text1.setText(null); } } if(m>3){ JOptionPane.showMessageDialog(this,"您三次口令错误，确定后退出！","警告", JOptionPane.ERROR_MESSAGE); System.exit(0); } } if(i==1){ if(e.getSource()==m1){ Ljyss1=newLjys(); s1.setVisible(true); }elseif(e.getSource()==m2){ Zhengshujiajianf1=newZhengshujiajian(); f1.setTitle("定点整数单符号位补码加减运算"); f1.setVisible(true); }elseif(e.getSource()==m3){ Zhengshuchengfaf2=newZhengshuchengfa(); f2.setTitle("定点整数的原码乘法"); f2.setVisible(true); }elseif(e.getSource()==m4){ Fdysf5=newFdys(); f5.setVisible(true); } } }}Ljys.javaimportjavax.swing.*;importjava.awt.*;importjava.awt.event.*;importjavax.swing.SwingUtilities;importjava.awt.TextField;classLjysextendsFrameimplementsMouseListener{ Buttonbutton1; Buttonbutton2; Buttonbutton3; Buttonbutton4; Buttonbutton5; Buttonbutton6; Labellabel1; Labellabel2; Labellabel3; Labellabel4; Labellabel5; Labellabel6; Labellabel7; TextFieldtext1; TextFieldtext2; TextFieldtext3; Strings,s1,temp; intn1,i,j; chara[]; publicLjys(){ setTitle("机器数的真值还原（定点整数）"); button1=newButton("输入"); button2=newButton("原-->真值"); button3=newButton("反-->真值"); button4=newButton("补-->真值"); button5=newButton("移-->真值"); button6=newButton("返回"); label1=newLabel("机器数的真值还原（定点整数)"); Fontf1=newFont("",Font.TRUETYPE_FONT,25); label1.setFont(f1); label2=newLabel("请输入机器数："); label3=newLabel("真值还原结果为："); text1=newTextField(8); text2=newTextField(10); text2.setEditable(false); BoxbaseBox,box1,box2,box3,box4,box5; box1=Box.createHorizontalBox(); box1.add(label1); box2=Box.createHorizontalBox(); box2.add(label2); box2.add(Box.createHorizontalStrut(10)); box2.add(text1); box2.add(Box.createHorizontalStrut(10)); box3=Box.createHorizontalBox(); box3.add(label3); box3.add(Box.createHorizontalStrut(10)); box3.add(text2); box3.add(Box.createHorizontalStrut(10)); box4=Box.createHorizontalBox(); box5=Box.createHorizontalBox(); box5.add(button1); box5.add(Box.createHorizontalStrut(20)); box5.add(button2); box5.add(Box.createHorizontalStrut(10)); box5.add(button3); box5.add(Box.createHorizontalStrut(10)); box5.add(button4); box5.add(Box.createHorizontalStrut(10)); box5.add(button5); box5.add(Box.createHorizontalStrut(10)); box5.add(button6); box5.add(Box.createHorizontalStrut(10)); baseBox=Box.createVerticalBox(); baseBox.add(box1); baseBox.add(Box.createVerticalStrut(10)); baseBox.add(box2); baseBox.add(Box.createVerticalStrut(10)); baseBox.add(box3); baseBox.add(Box.createVerticalStrut(10)); baseBox.add(box4); baseBox.add(Box.createVerticalStrut(10)); baseBox.add(box5); baseBox.add(Box.createVerticalStrut(10)); setLayout(newFlowLayout()); add(baseBox); text1.addMouseListener(this); text2.addMouseListener(this); button1.addMouseListener(this); button2.addMouseListener(this); button3.addMouseListener(this); button4.addMouseListener(this); button5.addMouseListener(this); button6.addMouseListener(this); addMouseListener(this); addWindowListener(newWindowAdapter(){ publicvoidwindowClosing(WindowEvente){ System.exit(0); } }); setBounds(200,300,500,300); setVisible(true); } publicvoidmousePressed(MouseEvente){ } publicvoidmouseReleased(MouseEvente){ } publicvoidmouseEntered(MouseEvente){ } publicvoidmouseExited(MouseEvente){ } publicvoidmouseMoved(MouseEvente){ } publicvoidmouseDragged(MouseEvente){ } publicvoidmouseClicked(MouseEvente){ Componentcom=null; if(e.getSource()==button2){ com=(Component)e.getSource(); e=SwingUtilities.convertMouseEvent(com,e,this); Strings=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); text2.setText("-"+s1); } } elseif(e.getSource()==button1){ text1.setText(""); } if(e.getSource()==button3){ s=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); chara[]=s1.toCharArray(); for(i=0;i<=a.length-1;i++){ if(a[i]=='0') a[i]='1'; elseif(a[i]=='1') a[i]='0'; } for(i=0;i<=a.length-1;i++){ s1=String.valueOf(a); } text2.setText("-"+s1); } } if(e.getSource()==button4){ s=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); j=s1.lastIndexOf("1")+1; s1=s.substring(1,j); chara[]=s1.toCharArray(); for(i=0;i<=a.length-1;i++){ if(a[i]=='0') a[i]='1'; elseif(a[i]=='1') a[i]='0'; } for(i=0;i<=a.length-1;i++){ s1=String.valueOf(a); } temp=s.substring(j,n1); text2.setText("-"+s1+temp); } } if(e.getSource()==button5){ com=(Component)e.getSource(); e=SwingUtilities.convertMouseEvent(com,e,this); Strings=text1.getText(); booleanboo=s.startsWith("0",0); if(boo==true){ n1=s.length(); s1=s.substring(1,n1); text2.setText("+"+s1); } else{ n1=s.length(); s1=s.substring(1,n1); j=s1.lastIndexOf("1")+1; s1=s.substring(1,j); chara[]=s1.toCharArray(); for(i=0;i<=a.length-1;i++){ if(a[i]=='0') a[i]='1'; elseif(a[i]=='1') a[i]='0'; } for(i=0;i<=a.length-1;i++){ s1=String.valueOf(a); } temp=s.substring(j,n1); text2.setText("-"+s1+temp); } } if(e.getSource()==button6){ com=(Component)e.getSource(); e=SwingUtilities.convertMouseEvent(com,e,this); Newclasspp=newNewclass(null); setVisible(false); pp.setVisible(true); } }}Zhengshujiajian.javaimportjava.awt.*;importjavax.swing.*;importjava.awt.event.*;publicclassZhengshujiajianextendsFrameimplementsActionListener{ Boxbasebox,box1,box2,box3,box4,box5,box6; Buttonbutton1,button2,button3,button4; Labelname; Labelinput,input1,input2,input3; Stringfirst,next,output; TextFielddata,data1,data2,data3; publicZhengshujiajian(){ setTitle("定点整数单符号位补码加减运算"); setBounds(200,300,500,300); button1=newButton("输入"); button2=newButton("加法"); button3=newButton("减法"); button4=newButton("返回"); box1=Box.createHorizontalBox(); name=newLabel("定点整数单符号位补码加减法",Label.CENTER); box1.add(name); box2=Box.createHorizontalBox(); input=newLabel("请输入第一个数(输入为补码)："); data=newTextField(10); box2.add(input); box2.add(data); box3=Box.createHorizontalBox(); input1=newLabel("请输入第二个数(输入为补码)："); data1=newTextField(10); box3.add(input1); box3.add(data1); box4=Box.createHorizontalBox(); input2=newLabel("加法结果为(显示为补码)："); data2=newTextField(10); box4.add(input2); box4.add(data2); box5=Box.createHorizontalBox(); input3=newLabel("减法结果为(显示为补码)："); data3=newTextField(10); box5.add(input3); box5.add(data3); box6=Box.createHorizontalBox(); box6.add(button1); box6.add(button2); box6.add(button3); box6.add(button4); basebox=Box.createVerticalBox(); basebox.add(box1); basebox.add(Box.createVerticalStrut(20)); basebox.add(box2); basebox.add(Box.createVerticalStrut(20)); basebox.add(box3); basebox.add(Box.createVerticalStrut(20)); basebox.add(box4); basebox.add(Box.createVerticalStrut(20)); basebox.add(box5); basebox.add(Box.createVerticalStrut(20)); basebox.add(box6); setLayout(newFlowLayout()); add(basebox); button1.addActionListener(this); button2.addActionListener(this); button3.addActionListener(this); button4.addActionListener(this); setVisible(true); addWindowListener(newWindowAdapter(){ publicvoidwindowClosing(WindowEvente){ setVisible(false); } }); validate(); } char[]bu(char[]in){ charc=in[0]; if(c=='1'){ charcarry='0'; inti; chartemp[]=in; for(i=1;i<=temp.length-1;i++)/*除符号位外各位取反*/ { if(temp[i]=='0') temp[i]='1'; elseif(temp[i]=='1') temp[i]='0'; } if(temp[temp.length-1]=='0'){ temp[temp.length-1]='1'; carry='0'; }/*末位加一*/ elseif(temp[temp.length-1]=='1'){ temp[temp.length-1]='0'; carry='1'; } for(i=temp.length-2;i>=0;i--)/*各位进位情况*/ { if(temp[i]=='0'&&carry=='0'){ temp[i]='0'; carry='0'; }elseif(temp[i]=='0'&&carry=='1'){ temp[i]='1'; carry='0'; }elseif(temp[i]=='1'&&carry=='0'){ temp[i]='1'; carry='0'; }elseif(temp[i]=='1'&&carry=='1'){ temp[i]='0'; carry='1'; } } in=temp; } returnin; } char[]jia(char[]in1,char[]in2){ char[]out; charcarry[]=newchar[in1.length+1];/*carry[]用来存放每位的进位*/ inti=0; out=in1; carry[carry.length-1]='0';/*carry[]最后一位初值为‘0’，carry[]长度比输入大一*/ for(i=in1.length-1;i>=0;i--){ if(in1[i]=='0'&&in2[i]=='0'&&carry[i+1]=='0'){ out[i]='0'; carry[i]='0'; }elseif(in1[i]=='0'&&in2[i]=='1'&&carry[i+1]=='0'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='1'&&in2[i]=='0'&&carry[i+1]=='0'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='1'&&in2[i]=='1'&&carry[i+1]=='0'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='0'&&in2[i]=='0'&&carry[i+1]=='1'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='0'&&in2[i]=='1'&&carry[i+1]=='1'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='1'&&in2[i]=='0'&&carry[i+1]=='1'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='1'&&in2[i]=='1'&&carry[i+1]=='1'){ out[i]='1'; carry[i]='1'; } } if(carry[0]!=carry[1])/*当最高数值位进位与符号位进位不同时表溢出*/ { Stringtemp=newString("溢出"); out=temp.toCharArray(); } returnout; } char[]jian(char[]in1,char[]in2){ if(in2[0]=='1')/*将第二个数转为其相反数的补码*/ { in2=bu(in2); in2[0]='0'; } elseif(in2[0]=='0'){ in2[0]='1'; in2=bu(in2); } char[]o=jia(in1,in2);/*将减法转换为加法*/ returno; } publicvoidactionPerformed(ActionEvente){ if(e.getSource()==button1)/*输入将光标定位在最上面文本框*/ { data.setText(null); data1.setText(null); data2.setText(null); data3.setText(null); data.requestFocusInWindow(); } elseif(e.getSource()==button2)/*加法*/ { first=data.getText(); next=data1.getText(); char[]out; char[]i1,i2; i1=first.toCharArray(); i2=next.toCharArray(); if(i1.length!=i2.length) data1.setText("请输入数值位长度相等的数字！"); else{ out=jia(i1,i2); output=newString(out); data2.setText(output); } } elseif(e.getSource()==button3)/*减法*/ { first=data.getText(); next=data1.getText(); char[]out; char[]i1,i2; i1=first.toCharArray(); i2=next.toCharArray(); if(i1.length!=i2.length) data1.setText("请输入数值位长度相等的数字！"); else{ out=jian(i1,i2); output=newString(out); data3.setText(output); } } elseif(e.getSource()==button4)/*返回*/ { newNewclass(null); setVisible(false); } }}Zhengshuchengfa.javaimportjava.awt.*;importjavax.swing.*;importjava.awt.event.*;publicclassZhengshuchengfaextendsFrameimplementsActionListener{ Boxbasebox,box1,box2,box3,box4,box5; Buttonbutton1,button2,button3; Labelname,input,input1,input2; TextFielddata,data1,data2; publicZhengshuchengfa(){ setTitle("定点整数的原码乘法"); setBounds(200,300,500,300); button1=newButton("输入"); button2=newButton("乘法"); button3=newButton("返回"); box1=Box.createHorizontalBox(); name=newLabel("定点整数的原码乘法",Label.CENTER); box1.add(name); box2=Box.createHorizontalBox(); input=newLabel("请输入被乘数(一位符号位)："); data=newTextField(10); box2.add(input); box2.add(data); box3=Box.createHorizontalBox(); input1=newLabel("请输入乘数(一位符号位)："); data1=newTextField(9); box3.add(input1); box3.add(data1); box4=Box.createHorizontalBox(); input2=newLabel("乘法结果为（一位符号位）："); data2=newTextField(12); box4.add(input2); box4.add(data2); box5=Box.createHorizontalBox(); box5.add(button1); box5.add(button2); box5.add(button3); basebox=Box.createVerticalBox(); basebox.add(box1); basebox.add(Box.createVerticalStrut(20)); basebox.add(box2); basebox.add(Box.createVerticalStrut(20)); basebox.add(box3); basebox.add(Box.createVerticalStrut(20)); basebox.add(box4); basebox.add(Box.createVerticalStrut(20)); basebox.add(box5); setLayout(newFlowLayout()); add(basebox); button1.addActionListener(this); button2.addActionListener(this); button3.addActionListener(this); setVisible(true); addWindowListener(newWindowAdapter(){ publicvoidwindowClosing(WindowEvente){ setVisible(false); } }); validate(); } char[]jia(char[]in1,char[]in2){ char[]out;//结果数组 charcarry[]=newchar[in1.length+1];//进位位 inti=0; out=in1; carry[carry.length-1]='0';//最后一位没有进位位（为0） for(i=in1.length-1;i>=0;i--){ if(in1[i]=='0'&&in2[i]=='0'&&carry[i+1]=='0'){ out[i]='0'; carry[i]='0'; }elseif(in1[i]=='0'&&in2[i]=='1'&&carry[i+1]=='0'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='1'&&in2[i]=='0'&&carry[i+1]=='0'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='1'&&in2[i]=='1'&&carry[i+1]=='0'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='0'&&in2[i]=='0'&&carry[i+1]=='1'){ out[i]='1'; carry[i]='0'; }elseif(in1[i]=='0'&&in2[i]=='1'&&carry[i+1]=='1'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='1'&&in2[i]=='0'&&carry[i+1]=='1'){ out[i]='0'; carry[i]='1'; }elseif(in1[i]=='1'&&in2[i]=='1'&&carry[i+1]=='1'){ out[i]='1'; carry[i]='1'; } }//做加法运算 returnout; } publicvoidactionPerformed(ActionEvente){ if(e.getSource()==button1)//输入开关 { data.setText(null); data1.setText(null); data2.setText(null); data.requestFocusInWindow(); } elseif(e.getSource()==button2){//做乘法 Strings1=data.getText(); Strings2=data1.getText(); Stringbeichengshu=s1.substring(1); Stringsignal="0"; Stringtemp=null; char[]in1=s1.toCharArray(); char[]in2=s2.toCharArray(); if(in1.length!=in2.length) data1.setText("请输入数值位长度相等的数字！"); else{ if((in1[0]=='0'&&in2[0]=='0')||(in1[0]=='1'&&in2[0]=='1')) { signal="0"; } if((in1[0]=='0'&&in2[0]=='1')||(in1[0]=='1'&&in2[0]=='0')) { signal="1"; }//判别结果符号 intcount=beichengshu.length()-1; charc[]=newchar[count+1]; for(inti=0;i<=count;i++) { c[i]='0'; } Stringstr[]=newString[beichengshu.length()+1]; str[0]=s1+newString(c); for(inti=beichengshu.length();i>0;i--)//按照乘数各个位判别 { if(in2[i]=='0'){ str[i]=newString(c)+newString(c); } elseif(in2[i]=='1'){ str[i]=beichengshu+newString(c); } } for(inti=1;i<=beichengshu.length();i++)//实现右移操作 { intk; char[]buwei=newchar[i]; for(k=0;k<i;k++) { buwei[k]='0'; } str[i]=newString(buwei) +str[i].substring(0,str[i].length()-i); } temp=newString(c)+newString(c); charresult[]=temp.toCharArray(); for(inti=1;i<str.length;i++)//各个部分积求和 { charjia1[]=str[i].toCharArray(); result=jia(result,jia1); } temp=signal+newString(result); data2.setText(temp); } } elseif(e.getSource()==button3){ newNewclass(null); setVisible(false); } }}Fdys.javaimportjavax.swing.*;importjava.awt.*;importjava.awt.event.*;importjava.awt.TextField;publicclassFdysextendsFrameimplementsActionListener{ Boxbasebox,box1,box2,box3,box4,box5,box6; Buttonbutton1,button2,button3,button4; Labelname,input,input1,input2,input3,input4,input5,input7,input6; TextFielddata,data1,data2,data3,data4,data5,data6,data7; publicFdys(){ setTitle("浮点数加减法"); Toolkittool=getToolkit(); tool.getScreenSize(); setBounds(200,300,500,300); button1=newButton("输入"); button2=newButton("加法"); button3=newButton("减法"); button4=newButton("返回"); box1=Box.createHorizontalBox();//水平支撑 name=newLabel("浮点数加减法",Label.CENTER); box1.add(name); box2=Box.createHorizontalBox(); input=newLabel("第一个数的阶码："); data=newTextField(10); input1=newLabel("尾数："); data1=newTextField(10); box2.add(input); box2.add(data); box2.add(input1); box2.add(data1); box3=Box.createHorizontalBox(); input2=newLabel("第二个数的阶码："); data2=newTextField(10); input3=newLabel("尾数："); data3=newTextField(10); box3.add(input2); box3.add(data2); box3.add(input3); box3.add(data3); box4=Box.createHorizontalBox(); input4=newLabel("加法的阶码为："); data4=newTextField(10); input5=newLabel("尾数："); data5=newTextField(10); box4.add(input4); box4.add(data4); box4.add(input5); box4.add(data5); box5=Box.createHorizontalBox(); input6=newLabel("减法的阶码为："); data6=newTextField(10); input7=newLabel("尾数："); data7=newTextField(10); box5.add(input6); box5.add(data6); box5.add(input7); box5.add(data7); box6=Box.createHorizontalBox(); box6.add(button1); box6.add(button2); box6.add(button3); box6.add(button4); basebox=Box.createVerticalBox();//背景盒，垂直支撑 basebox.add(box1); basebox.add(Box.createVerticalStrut(20)); basebox.add(box2); basebox.add(Box.createVerticalStrut(20)); basebox.add(box3); basebox.add(Box.createVerticalStrut(20)); basebox.add(box4); basebox.add(Box.createVerticalStrut(20)); basebox.add(box5); basebox.add(Box.createVerticalStrut(20)); basebox.add(box6); setLayout(newFlowLayout());//流式布局 add(basebox); button1.addActionListener(this); button2.addActionListener(this); button3.addActionListener(this); button4.addActionListener(this); setVisible(true); addWindowListener(newWindowAdapter(){ publicvoidwindowClosing(WindowEvente){ setVisible(false); } });//匿名类，适配器类 validate(); } Stringcalculate(Strings1,Strings2){//做加法运算 charac='0'; chara1[]=s1.toCharArray(),a2[]=s2.toCharArray(); for(inti=a1.length-1;i>=0;i--){ if(a1[i]=='0'&&a2[i]=='0'&&ac=='0'){ a2[i]='0'; ac='0'; }elseif(a1[i]=='0'&&a2[i]=='0'&&ac=='1'){ a2[i]='1'; ac='0'; }elseif(a1[i]=='0'&&a2[i]=='1'&&ac=='0'){ a2[i]='1'; ac='0'; }elseif(a1[i]=='1'&&a2[i]=='0'&&ac=='0'){ a2[i]='1'; ac='0'; }elseif(a1[i]=='0'&&a2[i]=='1'&&ac=='1'){ a2[i]='0'; ac='1'; }elseif(a1[i]=='1'&&a2[i]=='1'&&ac=='0'){ a2[i]='0'; ac='1'; }elseif(a1[i]=='1'&&a2[i]=='0'&&ac=='1'){ a2[i]='0'; ac='1'; }elseif(a1[i]=='1'&&a2[i]=='1'&&ac=='1'){ a2[i]='1'; ac='1'; } } returnnewString(a2); } publicStringjiemaQiubu(Strings)/*阶码变形补码*/ { if(s.startsWith("+")){ s="00"+s.substring(1); } if(s.startsWith("-")){//找到最后一个1，将之前的数取反 Stringtemp=s.substring(1,s.lastIndexOf("1")); charc[]=temp.toCharArray(); for(inti=0;i<c.length;i++){ if(c[i]=='0') c[i]='1'; else c[i]='0'; } temp=newString(c); s="11"+temp+s.substring(s.lastIndexOf(