java课程设计报告JAVA课设小学算数运算测试程序报告中界面设计部分的详细设计与关键问

急求java 计算器课程设计报告，有源码，

源码如下： import java.awt.*; import java.text.DecimalFormat; import java.awt.event.*; import javax.swing.*; public class Calculator extends JFrame { private Container container; private GridBagLayout layout; private GridBagConstraints constraints; private JTextField displayField;//计算结果显示区 DecimalFormat df; //设置数据输出精度 private String lastCommand;//保存+,-,*,/,=命令 private double result;//保存计算结果 private boolean start;//判断是否为数字的开始 public Calculator() { super("Calculator"); container=getContentPane(); layout=new GridBagLayout(); container.setLayout(layout); constraints=new GridBagConstraints(); start=true; result=0; df = new DecimalFormat("0.##############"); //设置数据输出精度(对于double型值) lastCommand = "="; displayField=new JTextField(20); displayField.setHorizontalAlignment(JTextField.RIGHT); constraints.gridx=0; constraints.gridy=0; constraints.gridwidth=4; constraints.gridheight=1; constraints.fill=GridBagConstraints.BOTH; constraints.weightx=100; constraints.weighty=100; layout.setConstraints(displayField,constraints); container.add(displayField); ActionListener insert = new InsertAction(); mand = new CommandAction(); addButton("Backspace",0,1,2,1,insert); addButton("CE",2,1,1,1,insert); addButton("C",3,1,1,1,insert); addButton("7",0,2,1,1,insert); addButton("8",1,2,1,1,insert); addButton("9",2,2,1,1,insert); addButton("/",3,2,1,mand); addButton("4",0,3,1,1,insert); addButton("5",1,3,1,1,insert); addButton("6",2,3,1,1,insert); addButton("*",3,3,1,mand); addButton("1",0,4,1,1,insert); addButton("2",1,4,1,1,insert); addButton("3",2,4,1,1,insert); addButton("-",3,4,1,mand); addButton("0",0,5,1,1,insert); addButton("+/-",1,5,1,1,insert);//只显示"-"号,"+"没有实用价值 addButton(".",2,5,1,1,insert); addButton("+",3,5,1,mand); addButton("=",0,6,4,mand); setSize(300,300); setVisible(true); } private void addButton(String label,int row,int column,int with,int height,ActionListener listener) { JButton button=new JButton(label); constraints.gridx=row; constraints.gridy=column; constraints.gridwidth=with; constraints.gridheight=height; constraints.fill=GridBagConstraints.BOTH; button.addActionListener(listener); layout.setConstraints(button,constraints); container.add(button); } private class InsertAction implements ActionListener { public void actionPerformed(ActionEvent event) { String input=event.getActionCommand(); if (start) { displayField.setText(""); start=false; if(input.equals("+/-")) displayField.setText(displayField.getText()+"-"); } if(!input.equals("+/-")) { if(input.equals("Backspace")) { String str=displayField.getText(); if(str.length()>0) displayField.setText(str.substring(0,str.length()-1)); } else if(input.equals("CE")||input.equals("C")) { displayField.setText("0"); start=true; } else displayField.setText(displayField.getText()+input); } } } private class CommandAction implements ActionListener { public void actionPerformed(ActionEvent evt) { mand=evt.getActionCommand(); if(start) { mand; } else { calculate(Double.parseDouble(displayField.getText())); mand; start=true; } } } public void calculate(double x) { if (lastCommand.equals("+")) result+= x; else if (lastCommand.equals("-")) result-=x; else if (lastCommand.equals("*")) result*=x; else if (lastCommand.equals("/")) result/=x; else if (lastCommand.equals("=")) result=x; displayField.setText(""+ df.format(result)); } public static void main(String []args) { Calculator calculator=new Calculator(); calculator.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }

求五子棋的Java课程设计

呵呵，代码自己测试： import java.awt.*; import java.awt.event.*; import java.applet.Applet; import java.awt.Color; public class enzit extends Applet implements ActionListener,MouseListener,MouseMotionListener,ItemListener { int color_Qizi=0;//旗子的颜色标识 0:白子 1:黑子 int intGame_Start=0;//游戏开始标志 0未开始 1游戏中 int intGame_Body[][]=new int[16][16]; //设置棋盘棋子状态 0 无子 1 白子 2 黑子 Button b1=new Button("游戏开始"); Button b2=new Button("重置游戏"); Label lblWin=new Label(" "); Checkbox ckbHB[]=new Checkbox[2]; CheckboxGroup ckgHB=new CheckboxGroup(); public void init() { setLayout(null); addMouseListener(this); add(b1); b1.setBounds(330,50,80,30); b1.addActionListener(this); add(b2); b2.setBounds(330,90,80,30); b2.addActionListener(this); ckbHB[0]=new Checkbox("白子先",ckgHB,false); ckbHB[0].setBounds(320,20,60,30); ckbHB[1]=new Checkbox("黑子先",ckgHB,false); ckbHB[1].setBounds(380,20,60,30); add(ckbHB[0]); add(ckbHB[1]); ckbHB[0].addItemListener(this); ckbHB[1].addItemListener(this); add(lblWin); lblWin.setBounds(330,130,80,30); Game_start_csh(); } public void itemStateChanged(ItemEvent e) { if (ckbHB[0].getState()) //选择黑子先还是白子先 { color_Qizi=0; } else { color_Qizi=1; } } public void actionPerformed(ActionEvent e) { Graphics g=getGraphics(); if (e.getSource()==b1) { Game_start(); } else { Game_re(); } } public void mousePressed(MouseEvent e){} public void mouseClicked(MouseEvent e) { Graphics g=getGraphics(); int x1,y1; x1=e.getX(); y1=e.getY(); if (e.getX()<20 || e.getX()>300 || e.getY()<20 || e.getY()>300) { return; } if (x1%20>10) { x1+=20; } if(y1%20>10) { y1+=20; } x1=x1/20*20; y1=y1/20*20; set_Qizi(x1,y1); } public void mouseEntered(MouseEvent e){} public void mouseExited(MouseEvent e){} public void mouseReleased(MouseEvent e){} public void mouseDragged(MouseEvent e){} public void mouseMoved(MouseEvent e){} public void paint(Graphics g) { draw_qipan(g); } public void set_Qizi(int x,int y) //落子 { if (intGame_Start==0) //判断游戏未开始 { return; } if (intGame_Body[x/20][y/20]!=0) { return; } Graphics g=getGraphics(); if (color_Qizi==1)//判断黑子还是白子 { g.setColor(Color.black); color_Qizi=0; } else { g.setColor(Color.white); color_Qizi=1; } g.fillOval(x-10,y-10,20,20); intGame_Body[x/20][y/20]=color_Qizi+1; if (Game_win_1(x/20,y/20)) //判断输赢 { lblWin.setText(Get_qizi_color(color_Qizi)+"赢了!"); intGame_Start=0; } if (Game_win_2(x/20,y/20)) //判断输赢 { lblWin.setText(Get_qizi_color(color_Qizi)+"赢了!"); intGame_Start=0; } if (Game_win_3(x/20,y/20)) //判断输赢 { lblWin.setText(Get_qizi_color(color_Qizi)+"赢了!"); intGame_Start=0; } if (Game_win_4(x/20,y/20)) //判断输赢 { lblWin.setText(Get_qizi_color(color_Qizi)+"赢了!"); intGame_Start=0; } } public String Get_qizi_color(int x) { if (x==0) { return "黑子"; } else { return "白子"; } } public void draw_qipan(Graphics G) //画棋盘 15*15 { G.setColor(Color.lightGray); G.fill3DRect(10,10,300,300,true); G.setColor(Color.black); for(int i=1;i<16;i++) { G.drawLine(20,20*i,300,20*i); G.drawLine(20*i,20,20*i,300); } } public void Game_start() //游戏开始 { intGame_Start=1; Game_btn_enable(false); b2.setEnabled(true); } public void Game_start_csh() //游戏开始初始化 { intGame_Start=0; Game_btn_enable(true); b2.setEnabled(false); ckbHB[0].setState(true); for (int i=0;i<16 ;i++ ) { for (int j=0;j<16 ;j++ ) { intGame_Body[i][j]=0; } } lblWin.setText(""); } public void Game_re() //游戏重新开始 { repaint(); Game_start_csh(); } public void Game_btn_enable(boolean e) //设置组件状态 { b1.setEnabled(e); b2.setEnabled(e); ckbHB[0].setEnabled(e); ckbHB[1].setEnabled(e); } public boolean Game_win_1(int x,int y) //判断输赢 横 { int x1,y1,t=1; x1=x; y1=y; for (int i=1;i<5 ;i++ ) { if (x1>15) { break; } if (intGame_Body[x1+i][y1]==intGame_Body[x][y]) { t+=1; } else { break; } } for (int i=1;i<5 ;i++ ) { if (x1<1) { break; } if(intGame_Body[x1-i][y1]==intGame_Body[x][y]) { t+=1; } else { break; } } if (t>4) { return true; } else { return false; } } public boolean Game_win_2(int x,int y) //判断输赢 竖 { int x1,y1,t=1; x1=x; y1=y; for (int i=1;i<5 ;i++ ) { if (x1>15) { break; } if (intGame_Body[x1][y1+i]==intGame_Body[x][y]) { t+=1; } else { break; } } for (int i=1;i<5 ;i++ ) { if (x1<1) { break; } if(intGame_Body[x1][y1-i]==intGame_Body[x][y]) { t+=1; } else { break; } } if (t>4) { return true; } else { return false; } } public boolean Game_win_3(int x,int y) //判断输赢 左斜 { int x1,y1,t=1; x1=x; y1=y; for (int i=1;i<5 ;i++ ) { if (x1>15) { break; } if (intGame_Body[x1+i][y1-i]==intGame_Body[x][y]) { t+=1; } else { break; } } for (int i=1;i<5 ;i++ ) { if (x1<1) { break; } if(intGame_Body[x1-i][y1+i]==intGame_Body[x][y]) { t+=1; } else { break; } } if (t>4) { return true; } else { return false; } } public boolean Game_win_4(int x,int y) //判断输赢 左斜 { int x1,y1,t=1; x1=x; y1=y; for (int i=1;i<5 ;i++ ) { if (x1>15) { break; } if (intGame_Body[x1+i][y1+i]==intGame_Body[x][y]) { t+=1; } else { break; } } for (int i=1;i<5 ;i++ ) { if (x1<1) { break; } if(intGame_Body[x1-i][y1-i]==intGame_Body[x][y]) { t+=1; } else { break; } } if (t>4) { return true; } else { return false; } } }

JAVA课设小学算数运算测试程序报告中界面设计部分的详细设计与关键问

package demo; import java.util.Scanner; public class Test { static Scanner sc = new Scanner(System.in); public static boolean isNum(String str) { boolean a = str.matches("^[-+]?(([0-9]+)([.]([0-9]+))?|([.]([0-9]+))?)$"); boolean b = str.matches("^[-+]?$"); return a && !b; } public static double input(int i) { System.out.print("输入第" + i + "个数："); String num = ""; do { num = sc.next(); if (!isNum(num)) { System.out.print("输入的不为数字，请重新输入："); } } while (!isNum(num)); return Double.parseDouble(num); } public static String input2() { String operator = ""; boolean re; System.out.print("输入运算符（+、-、*、/、^）："); do { operator = sc.next(); re = operator.equals("+") || operator.equals("-") || operator.equals("*") || operator.equals("/") || operator.equals("^"); if (!re) { System.out.print("请输入（+、-、*、/、^）中的一个："); } } while (!re); return operator; } public static void main(String[] args) { String judge = ""; do { double n1 = input(1); double n2 = input(2); String result = ""; double res = 0; String op = null; op = input2(); switch (op) { case "+": res = n1 + n2; break; case "-": res = n1 - n2; break; case "*": res = n1 * n2; break; case "/": if (n2 == 0) { result = "除数不能为0"; } else { res = n1 / n2; } break; case "^": res = Math.pow(n1, n2); break; } if (result.isEmpty()) { result = String.valueOf(res); } System.out.println("计算结果：" + n1 + op + n2 + "=" + result); System.out.print("是否继续？（Y/任意退出）"); judge = sc.next(); } while (judge.equals("Y") || judge.equals("y")); System.out.println("谢谢使用_(:зゝ∠)_"); } }