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java课程设计题目及代码分别是:
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1、题目:计算器。设计内容是设计一个图形界面(GUI)的计算器应用程序,完成简单的算术运算。
设计要求是设计的计算器应用程序可以完成家法、减法、乘法、除法和取余运算。且有小数点、正负号、求倒数、退格和清零功能。
2、代码:
数字按钮NumberButton类如下:
import java.awt.
import java.awt.event.
import javax.swing.
public class NumberButton extends Button.
{
int number.
public NumberButton(int number).
{
super(""+number).
this.number=number.
setForeground(Color.blue).
}
public int getNumber().
{
return number;
}
}
其它java课程设计题目及代码是:
题目:华容道。编写一个按钮的子类,使用该子类创建的对象代表华容道中的人物。通过焦点事件控制人物颜色,当人物获得焦点时颜色为蓝色,当失去焦点时颜色为灰色。
通过键盘事件和鼠标事件来实现曹操、关羽等人物的移动。当人物上发生鼠标事件或键盘事件时,如果鼠标指针的位置是在人物的下方(也就是组件的下半部分)或按下键盘的“↓“键,该人物向下移动。向左、向右和向上的移动原理类似。
代码是:
String name[]={"曹操","关羽","张","刘","马","许","兵","兵","兵","兵"}.
for(int i=0;iname.length;i++).
{
person[i]=new Person(i,name[i]).
person[i].addKeyListener(this).
person[i].addMouseListener(this).
// person[i].addFocusListener(new Person).
add(person[i]).
}
person[0].setBounds(104,54,100,100).
person[1].setBounds(104,154,100,50).
person[2].setBounds(54,154,50,100).
person[3].setBounds(204,154,50,100).
person[4].setBounds(54,54,50,100).
person[5].setBounds(204,54,50,100);
person[6].setBounds(54,254,50,50);
person[7].setBounds(204,254,50,50);
person[8].setBounds(104,204,50,50);
person[9].setBounds(154,204,50,50);
这个我试了的没有任务问题,稀望对你有点帮助,记得类名要改为Hua_Rong_Road ,因为只有Hua_Rong_Road 这个类是公开的.另外包名也改下package xxxx(你自己建的包名),玩游戏时移动人物,用键盘(上下左右 ,--,--,上,下)操作,鼠标是不能移动 人物的,照着我说的做,应该是没什么问题的:
package baidu.testfive;
import java.applet.Applet;
import java.awt.Button;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
class People extends Button implements FocusListener // 代表华容道人物的类。
{
Rectangle rect = null;
int left_x, left_y;// 按扭的左上角坐标.
int width, height; // 按扭的宽和高.
String name;
int number;
People(int number, String s, int x, int y, int w, int h, Hua_Rong_Road road)// 构造函数
{
super(s);
name = s;
this.number = number;
left_x = x;
left_y = y;
width = w;
height = h;
setBackground(Color.orange);
road.add(this);
addKeyListener(road);
setBounds(x, y, w, h);
addFocusListener(this);
rect = new Rectangle(x, y, w, h);
}
public void focusGained(FocusEvent e) {
setBackground(Color.red);
}
public void focusLost(FocusEvent e) {
setBackground(Color.orange);
}
}
public class Hua_Rong_Road extends Applet implements KeyListener,
ActionListener {
People people[] = new People[10];
Rectangle left, right, above, below;// 华容道的边界 .
Button restart = new Button("重新开始");
public void init() {
setLayout(null);
add(restart);
restart.setBounds(5, 5, 80, 25);
restart.addActionListener(this);
people[0] = new People(0, "曹操", 104, 54, 100, 100, this);// 构造曹操
people[1] = new People(1, "关羽", 104, 154, 100, 50, this);// 构造关羽
people[2] = new People(2, "张飞", 54, 154, 50, 100, this);
people[3] = new People(3, "刘备", 204, 154, 50, 100, this);
people[4] = new People(4, "张辽", 54, 54, 50, 100, this);
people[5] = new People(5, "曹仁", 204, 54, 50, 100, this);
people[6] = new People(6, "兵 ", 54, 254, 50, 50, this);
people[7] = new People(7, "兵 ", 204, 254, 50, 50, this);
people[8] = new People(8, "兵 ", 104, 204, 50, 50, this);
people[9] = new People(9, "兵 ", 154, 204, 50, 50, this);
people[9].requestFocus();
left = new Rectangle(49, 49, 5, 260);
people[0].setForeground(Color.white);
right = new Rectangle(254, 49, 5, 260);
above = new Rectangle(49, 49, 210, 5);
below = new Rectangle(49, 304, 210, 5);
}
public void paint(Graphics g) {// 画出华容道的边界:
g.setColor(Color.cyan);
g.fillRect(49, 49, 5, 260);// left.
g.fillRect(254, 49, 5, 260);// right.
g.fillRect(49, 49, 210, 5); // above.
g.fillRect(49, 304, 210, 5);// below.
// 提示曹操逃出位置和按键规则:
g.drawString("点击相应的人物,然后按键盘上的上下左右箭头移动", 100, 20);
g.setColor(Color.red);
g.drawString("曹操到达该位置", 110, 300);
}
public void keyPressed(KeyEvent e) {
People man = (People) e.getSource();// 获取事件源.
man.rect.setLocation(man.getBounds().x, man.getBounds().y);
if (e.getKeyCode() == KeyEvent.VK_DOWN) {
man.left_y = man.left_y + 50; // 向下前进50个单位。
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
// 判断是否和其它人物或下边界出现重叠,如果出现重叠就退回50个单位距离。
for (int i = 0; i 10; i++) {
if ((man.rect.intersects(people[i].rect)) (man.number != i)) {
man.left_y = man.left_y - 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (man.rect.intersects(below)) {
man.left_y = man.left_y - 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (e.getKeyCode() == KeyEvent.VK_UP) {
man.left_y = man.left_y - 50; // 向上前进50个单位。
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
// 判断是否和其它人物或上边界出现重叠,如果出现重叠就退回50个单位距离。
for (int i = 0; i 10; i++) {
if ((man.rect.intersects(people[i].rect)) (man.number != i)) {
man.left_y = man.left_y + 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (man.rect.intersects(above)) {
man.left_y = man.left_y + 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (e.getKeyCode() == KeyEvent.VK_LEFT) {
man.left_x = man.left_x - 50; // 向左前进50个单位。
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
// 判断是否和其它人物或左边界出现重叠,如果出现重叠就退回50个单位距离。
for (int i = 0; i 10; i++) {
if ((man.rect.intersects(people[i].rect)) (man.number != i)) {
man.left_x = man.left_x + 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (man.rect.intersects(left)) {
man.left_x = man.left_x + 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
man.left_x = man.left_x + 50; // 向右前进50个单位。
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
// 判断是否和其它人物或右边界出现重叠,如果出现重叠就退回50个单位距离。
for (int i = 0; i 10; i++) {
if ((man.rect.intersects(people[i].rect)) (man.number != i)) {
man.left_x = man.left_x - 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
if (man.rect.intersects(right)) {
man.left_x = man.left_x - 50;
man.setLocation(man.left_x, man.left_y);
man.rect.setLocation(man.left_x, man.left_y);
}
}
}
public void keyTyped(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
public void actionPerformed(ActionEvent e) {
this.removeAll();
this.init();
}
}
package 华容道;
import java.awt.*;
import java.awt.event.*;
//主函数
public class Main {
public static void main(String[] args) {
new Hua_Rong_Road();
}
}
//人物按钮颜色
class Person extends Button implements FocusListener{
int number;
Color c=new Color(255,245,170);
Person(int number,String s)
{
super(s);
setBackground(c);//人物的颜色背景是黄色
this.number=number;
c=getBackground();
addFocusListener(this);//好像是焦点监听器
}
public void focusGained(FocusEvent e)
{
setBackground(Color.red);//只要单击该按钮则按钮变颜色
}
public void focusLost(FocusEvent e) {
setBackground(c);//上一个按钮回复原先的颜色
}
}
//华容道总类
class Hua_Rong_Road extends Frame implements MouseListener,KeyListener,ActionListener{
Person person[] = new Person[10];
Button left,right,above,below;
Button restart = new Button("Start");//重新开始按钮
public Hua_Rong_Road()
{
init();
setBounds(100,100,320,360);
setVisible(true);//设置Frame为可见,默认为不可见
validate();
addWindowListener(
new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
}
public void init()
{
setLayout(null);
add(restart);
restart.setBounds(100, 320, 120, 25);
restart.addActionListener(this);
String name[]={"我","陆逊","姜维","陈宫","许攸","邓艾","周瑜","庞统","诸葛亮","贾诩"};
for(int k=0;kname.length;k++)
{
person[k]=new Person(k,name[k]);
person[k].addMouseListener(this);
person[k].addKeyListener(this);
add(person[k]);
}//为所有的按钮注册所需的东西
person[0].setBounds(104, 54, 100, 100);
person[1].setBounds(104,154, 100, 50);
person[2].setBounds(54, 154, 50, 100);
person[3].setBounds(204, 154, 50, 100);
person[4].setBounds(54, 54, 50, 100);
person[5].setBounds(204, 54, 50, 100);
person[6].setBounds(54, 254,50, 50);
person[7].setBounds(204, 254, 50, 50);
person[8].setBounds(104, 204, 50, 50);
person[9].setBounds(154, 204, 50, 50);
//初始化按钮的位子
person[0].requestFocus();
left=new Button();
right=new Button();
above=new Button();
below=new Button();
left.setBounds(49,49,5,260);
right.setBounds(254,49,5,260);
above.setBounds(49,49,210,5);
below.setBounds(49,304,210,5);
validate();
}
public void keyTyped(KeyEvent e){}
public void keyReleased(KeyEvent e){}
public void keyPressed(KeyEvent e)
{
Person man=(Person)e.getSource();
if(e.getKeyCode()==KeyEvent.VK_DOWN)
{
go(man,below);
}
if(e.getKeyCode()==KeyEvent.VK_UP)
{
go(man,above);
}
if(e.getKeyCode()==KeyEvent.VK_LEFT)
{
go(man,left);
}
if(e.getKeyCode()==KeyEvent.VK_RIGHT)
{
go(man,right);
}
}
public void mousePressed(MouseEvent e)
{
Person man =(Person)e.getSource();
int x=-1,y=-1;
x=e.getX();
y=e.getY();
int w=man.getBounds().width;
int h=man.getBounds().height;
if(yh/2)
{
go(man,below);
}
if(yh/2)
{
go(man,above);
}
if(xw/2)
{
go(man,left);
}
if(xw/2)
{
go(man,right);
}
}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void go(Person man,Button direction)
{
boolean move=true;
Rectangle manRect=man.getBounds();
int x=man.getBounds().x;
int y=man.getBounds().y;
if(direction==below)
y=y+50;
else if(direction==above)
y=y-50;
else if(direction==left)
x=x-50;
else if(direction==right)
x=x+50;
manRect.setLocation(x,y);
Rectangle directionRect=direction.getBounds();
for(int k=0;k10;k++)
{
Rectangle personRect=person[k].getBounds();
if((manRect.intersects(personRect))(man.number!=k))
{
move=false;
}
}
if(manRect.intersects(directionRect))
{
move=false;
}
if(move==true)
{
man.setLocation(x,y);
}
}
public void actionPerformed(ActionEvent e)
{
dispose();
new Hua_Rong_Road();
}
}