多平台统一管理软件接口,如何实现多平台统一管理软件接口
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2023-01-02
java 多线程交通信号灯模拟过程详解
这学期我们java课程的课程设计项目----交通信号灯的线程设计
实验目的:多线程设计,同步机制
题意 设计一个交通信号灯类:
变量:位置、颜色(红、黄、绿)、显示时间(秒)。
方法:切换信号灯。
创建并启动两个线程(东西向、南北向)同时运行。
实验要求
设计线程。
设计路口信号灯示意图界面。
进一步将每个方向的信号灯分成3种车道灯:左转、直行和右转。
根据车流量进行时间的模糊控制。
在课程设计的开始并没有仔细看老师的要求,只知道是交通信号灯。然后就开始各种找资料,百度,网上大量的关于红绿灯的设计都是参考张孝祥老师的教程,大概的设计方法是创建了三个类 lamp、road、lampcontrol。
然鹅......对.....然鹅又来了,在查了大概两天资料后,我又反过来看了一遍老师发的设计要求.....这这这.....,光控制灯就行了啊,不要车的啊,捂脸...
所以设计思路马上就变得清晰,根据张老师的做法,每个路口都有三个灯,分别为左转、直行、右转,所以一共有12盏灯。按照要求,右转灯为常亮灯,左转和直行灯才有红绿交替。在除去右转灯的八个灯里面,又可以分为四组可以两两匹配的灯,分别为东西左转南北(平行转垂直)、南北直行(垂直通行)、南北左转东西(垂直转平行)、东西直行(平行通行)。
于是我给这个12个灯编了个号:
emmm 大概就是这样,但是跟生活中的红绿灯不同,生活中的都是看对面路口的灯,我们这里是模拟嘛....就各个路口用各个路口的灯呗.....
大致解释一下,
1号灯为由南向西的左转灯,2号灯为由南向北的直行灯,3号灯为由南向东的右转灯。
4号灯为由东向北的右转灯,5号灯为由东向西的直行灯,6号灯为由东向南的左转灯。
7号灯为由北向西的右转灯,8号灯为由北向南的直行灯,9号灯为由北向东的左转灯。
10号灯为由西向北的左转灯,11号灯为由西向东的直行灯,12号灯为由西向南的右转灯。
然后根据匹配的原则,大概就是这么一张图:
我们就可以得到:
这四组信号灯。
到这里我们思路就很清晰了,我们可以分别为每一组信号灯开一个进程,然后使四个进程循环交替进行就实现了绿灯的转换。使用了程的同步技术。
当然,我们都已经开了四个进程了,为了锦上添花,我当然不介意再加个小车了hhhhhh
实验结果图:
源代码:
light类:
package traffic;
public class light {
int x,y; //灯在画布上的位置
boolean status; //灯的状态
public light(int x,int y,boolean islight) {
this.x=x;
this.y=y;
this.status=islight;
}
public void setlight(boolean sta) { //对外接口更改灯的状态
this.status=sta;
}
}
lamp类:
package traffic;
public class lamp implements Runnable {
light opposite, now; //相互匹配的两个灯
int greentime; //绿灯亮的时间
int name; //编组
boolean status; //状态
static Object lock = new Object();
public lamp(light l0, light l2,int gt, boolean st, int name) {
now = l0;
opposite = l2;
status = st;
greentime = gt;
this.name = name;
lightstatues();
}
public void change() {
this.status = !(this.status);
lightstatues();
}
public void setgreentime(int time) {
this.greentime=time;
}
public int getgreentime() {
return this.greentime;
}
public void lightstatues() {
opposite.setlight(status);
now.setlight(status);
}
public void run() {
while (true) {
synchronized (lock) { //使用synchronized实现进程间的互斥
if (name == mainclass.panel.islight) { //使用辅助变量实现进程按顺序循环
//System.out.println("now is: "+name);
change();
mainclass.panel.repaint();
try {
Thread.sleep(greentime);
} catch (InterruptedException e) {
e.printStackTrace();
}
lock.notifyAll(); //唤醒其他进程
change();
mainclass.panel.LampChange();
mainclass.panel.repaint();
try {
lock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
} else {
try {
lock.wait(); //挂起进程
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
}
Mypanel类:
package traffic;
import java.awt.Color;
import java.awt.Graphics;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.JPanel;
public class Mypanel extends JPanel {
light l0,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12; //十二个灯
lamp lamp1,lamp2,lamp3,lamp4; //四组信号灯
static int islight; //实现进程循环的辅助变量
Random r=new Random();
static public ArrayList
static public ArrayList
public Mypanel() {
// TODO Auto-generated constructor stub
l0=addlist(l0, 212, 316, false);
l2=addlist(l2, 242, 316, false);
l3=addlist(l3, 272, 316, true);
l4=addlist(l4, 316, 116, true);
l5=addlist(l5, 316, 146, false);
l6=addlist(l6, 316, 176, false);
l7=addlist(l7,116 , 70, true);
l8=addlist(l8, 146, 70, false);
l9=addlist(l9, 176, 70, false);
l10=addlist(l10, 70, 212, false);
l11=addlist(l11, 70, 242, false);
l12=addlist(l12, 70, 272, true
lamp1=new lamp(l9,l0,2000,false,0);
lamp2=new lamp(l11,l5,2000,false,1);
lamp3=new lamp(l10,l6,2000,false,2);
lamp4=new lamp(l8,l2,2000,false,3);
islight = 0 ;
Thread t1=new Thread(lamp1); //创建并启动线程
Thread t2=new Thread(lamp2);
Thread t3=new Thread(lamp3);
Thread t4=new Thread(lamp4);
t1.start();
t2.start();
t3.start();
t4.start();
}
light addlist(light a,int x,int y,boolean sta) {
a=new light(x,y,sta);
lightlist.add(a);
return a;
}
public void addcar() { //生成小车
int now,next;
now=r.nextInt(4);
next=r.nextInt(4);
car testcar=null;
while(now==next)
next=r.nextInt(4);
switch(now) {
case 0:
testcar=new car(now,next,l0,l2,l3);
break;
case 1:
testcar=new car(now,next,l6,l5,l4);
break;
case 2:
testcar=new car(now,next,l9,l8,l7);
break;
case 3:
testcar=new car(now,next,l10,l11,l12);
break;
}
carlist.add(testcar);
Thread catt=new Thread(testcar);
catt.start();
}
public void LampChange() {
islight=(islight+1)%4;
}
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.darkGray); //画路
g.fillRect(0, 100, 400, 6);
g.fillRect(0, 300, 400, 6);
g.fillRect(100, 0, 6, 400);
g.fillRect(300, 0, 6, 400);
g.setColor(Color.gray);
g.fillRect(0, 200, 400, 2);
g.fillRect(200, 0, 2, 400);
g.setColor(Color.blue);
g.setColor(Color.black); //画信号灯板
g.fillRect(202,306, 100, 40);
g.fillRect(306,106, 40, 1http://00);
g.fillRect(106,60, 100, 40);
g.fillRect(60,202,40, 100);
light temp;
car buf;
for(int i=0;i buf=carlist.get(i); g.setColor(Color.BLUE); g.fillRect(buf.x, buf.y, 50, 50); } for(int i=0;i temp=lightlist.get(i); if(temp.status) g.setColor(Color.green); else g.setColor(Color.RED); g.fillOval(temp.x, temp.y, 20, 20); } } } welcomepanel类: package traffic; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import javax.swing.JPanel; public class welcomepanel extends JPanel implements Runnable{ //开始界面 int info = 0; Boolean isLive=true; public void paint(Graphics g) { super.paint(g); g.fillRect(0, 0, 420,450); g.setColor(Color.red); g.setFont(new Font("微软雅黑", Font.BOLD, 30)); if (info % 2 == 0) { g.drawString("多线程红绿灯模拟", 80, 150); } } public void run() { // TODO Auto-generated method stub while (true) { try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } info++; this.repaint(); if (isLive == false) { break; } } } } set类: package traffic; import java.awt.FlowLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; public class set extends JFrame implements ActionListener { //设置界面 JLabel lab1,lab2,lab3,lab4; JTextField jtext1,jtext2,jtext3,jtext4; JPanel panel1,panel2,panel3,panel4; JButton jb1,jb2; int time1,time2,time3,time4; public set(){ lab1=new JLabel("南北左转东西:"); lab2=new JLabel("东西直行:"); lab3=new JLabel("东西左转南北:"); lab4=new JLabel("南北直行:"); time1=mainclass.panel.lamp1.getgreentime(); time2=mainclass.panel.lamp2.getgreentime(); time3=mainclass.panel.lamp3.getgreentime(); time4=mainclass.panel.lamp4.getgreentime(); jtext1=new JTextField(String.valueOf(time1)); jtext2=new JTextField(String.valueOf(time2)); jtext3=new JTextField(String.valueOf(time3)); jtext4=new JTextField(String.valueOf(time4)); jb1=new JButton("确定"); jb1.addActionListener(this); jb2=new JButton("取消"); jb2.addActionListener(this); this.setLayout(new GridLayout(5,2,10,5)); this.add(lab1); this.add(jtext1); this.add(lab2); this.add(jtext2); this.add(lab3); this.add(jtext3); this.add(lab4); this.add(jtext4); this.add(jb1); this.add(jb2); this.setLocationRelativeTo(null); this.setSize(200, 200); this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); this.setResizable(false); this.setVisible(true); } public void actionPerformed(ActionEvent e) { if(e.getSource()==jb1) { if(jtext1.getText().length()==0||jtext2.getText().length()==0||jtext3.getText().length()==0||jtext4.getText().length()==0) JOptionPane.showMessageDialog(this, "请输入完整数据!", "错误", JOptionPane.INFORMATION_MESSAGE); else { mainclass.panel.lamp1.setgreentime(Integer.parseInt(jtext1.getText())); mainclass.panel.lamp2.setgreentime(Integer.parseInt(jtext2.getText())); mainclass.panel.lamp3.setgreentime(Integer.parseInt(jtext3.getText())); mainclass.panel.lamp4.setgreentime(Integer.parseInt(jtext4.getText())); this.dispose(); } }else if(e.getSource()==jb2){ this.dispose(); } } } mainclass主类: package traffic; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; public class mainclass extends JFrame implements ActionListener{ static Mypanel panel; JMenuBar jmb; JMenu jm1, jm2; JMenuItem jmi1, jmi2,jmi3,jmi4; welcomepanel sp; mainclass(){ this.setTitle("traffic lamp"); this.setSize(420,450); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jmb=new JMenuBar(); jm1=new JMenu("控制"); jm2=new JMenu("设置"); jmi1=new JMenuItem("开始模拟"); jmi1.addActionListener(this); jmi2=new JMenuItem("退出模拟"); jmi2.addActionListener(this); jmi3=new JMenuItem("随机生成小车"); jmi3.addActionLatGjbpistener(this); jmi4=new JMenuItem("更改绿灯时间"); jmi4.addActionListener(this); jm1.add(jmi1); jm1.add(jmi2); jm1.add(jmi3); jm2.add(jmi4); jmb.add(jm1); jmb.add(jm2); this.setJMenuBar(jmb); sp=new welcomepanel(); Thread t=new Thread(sp); t.start(); this.setContentPane(sp); this.setLocationRelativeTo(null); this.setResizable(false); this.setVisible(true); } public void actionPerformed(ActionEvent e) { if(e.getSource()==jmi1) { sp.isLive=false; this.remove(sp); panel = new Mypanel(); this.setContentPane(panel); this.setVisible(true); }else if(e.getSource()==jmi2) { System.exit(0); }else if(e.getSource()==jmi3) { if(panel==null) JOptionPane.showMessageDialog(this, "请开始模拟再生成小车", "错误", JOptionPane.INFORMATION_MESSAGE); else panel.addcar(); }else if (e.getSource() == jmi4) { if(mainclass.panel==null) JOptionPane.showMessageDialog(this, "请开始模拟再进行设置", "错误", JOptionPane.INFORMATION_MESSAGE); else new set(); } } public static void main(String[] args) { new mainclass(); } } 多线程正确性测试: 我们在lamp类的run()方法中添加了一句控制台打印命令,每次进程运行时即会打印此进程的name成员 正确的打印结果应该为 0-1-2-3-4-0-1-2-3-4-.......-1-2-3-.... 控制台的输出结果为: 符合预测结果,实验完成!
buf=carlist.get(i);
g.setColor(Color.BLUE);
g.fillRect(buf.x, buf.y, 50, 50);
}
for(int i=0;i temp=lightlist.get(i); if(temp.status) g.setColor(Color.green); else g.setColor(Color.RED); g.fillOval(temp.x, temp.y, 20, 20); } } } welcomepanel类: package traffic; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import javax.swing.JPanel; public class welcomepanel extends JPanel implements Runnable{ //开始界面 int info = 0; Boolean isLive=true; public void paint(Graphics g) { super.paint(g); g.fillRect(0, 0, 420,450); g.setColor(Color.red); g.setFont(new Font("微软雅黑", Font.BOLD, 30)); if (info % 2 == 0) { g.drawString("多线程红绿灯模拟", 80, 150); } } public void run() { // TODO Auto-generated method stub while (true) { try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } info++; this.repaint(); if (isLive == false) { break; } } } } set类: package traffic; import java.awt.FlowLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; public class set extends JFrame implements ActionListener { //设置界面 JLabel lab1,lab2,lab3,lab4; JTextField jtext1,jtext2,jtext3,jtext4; JPanel panel1,panel2,panel3,panel4; JButton jb1,jb2; int time1,time2,time3,time4; public set(){ lab1=new JLabel("南北左转东西:"); lab2=new JLabel("东西直行:"); lab3=new JLabel("东西左转南北:"); lab4=new JLabel("南北直行:"); time1=mainclass.panel.lamp1.getgreentime(); time2=mainclass.panel.lamp2.getgreentime(); time3=mainclass.panel.lamp3.getgreentime(); time4=mainclass.panel.lamp4.getgreentime(); jtext1=new JTextField(String.valueOf(time1)); jtext2=new JTextField(String.valueOf(time2)); jtext3=new JTextField(String.valueOf(time3)); jtext4=new JTextField(String.valueOf(time4)); jb1=new JButton("确定"); jb1.addActionListener(this); jb2=new JButton("取消"); jb2.addActionListener(this); this.setLayout(new GridLayout(5,2,10,5)); this.add(lab1); this.add(jtext1); this.add(lab2); this.add(jtext2); this.add(lab3); this.add(jtext3); this.add(lab4); this.add(jtext4); this.add(jb1); this.add(jb2); this.setLocationRelativeTo(null); this.setSize(200, 200); this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); this.setResizable(false); this.setVisible(true); } public void actionPerformed(ActionEvent e) { if(e.getSource()==jb1) { if(jtext1.getText().length()==0||jtext2.getText().length()==0||jtext3.getText().length()==0||jtext4.getText().length()==0) JOptionPane.showMessageDialog(this, "请输入完整数据!", "错误", JOptionPane.INFORMATION_MESSAGE); else { mainclass.panel.lamp1.setgreentime(Integer.parseInt(jtext1.getText())); mainclass.panel.lamp2.setgreentime(Integer.parseInt(jtext2.getText())); mainclass.panel.lamp3.setgreentime(Integer.parseInt(jtext3.getText())); mainclass.panel.lamp4.setgreentime(Integer.parseInt(jtext4.getText())); this.dispose(); } }else if(e.getSource()==jb2){ this.dispose(); } } } mainclass主类: package traffic; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; public class mainclass extends JFrame implements ActionListener{ static Mypanel panel; JMenuBar jmb; JMenu jm1, jm2; JMenuItem jmi1, jmi2,jmi3,jmi4; welcomepanel sp; mainclass(){ this.setTitle("traffic lamp"); this.setSize(420,450); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jmb=new JMenuBar(); jm1=new JMenu("控制"); jm2=new JMenu("设置"); jmi1=new JMenuItem("开始模拟"); jmi1.addActionListener(this); jmi2=new JMenuItem("退出模拟"); jmi2.addActionListener(this); jmi3=new JMenuItem("随机生成小车"); jmi3.addActionLatGjbpistener(this); jmi4=new JMenuItem("更改绿灯时间"); jmi4.addActionListener(this); jm1.add(jmi1); jm1.add(jmi2); jm1.add(jmi3); jm2.add(jmi4); jmb.add(jm1); jmb.add(jm2); this.setJMenuBar(jmb); sp=new welcomepanel(); Thread t=new Thread(sp); t.start(); this.setContentPane(sp); this.setLocationRelativeTo(null); this.setResizable(false); this.setVisible(true); } public void actionPerformed(ActionEvent e) { if(e.getSource()==jmi1) { sp.isLive=false; this.remove(sp); panel = new Mypanel(); this.setContentPane(panel); this.setVisible(true); }else if(e.getSource()==jmi2) { System.exit(0); }else if(e.getSource()==jmi3) { if(panel==null) JOptionPane.showMessageDialog(this, "请开始模拟再生成小车", "错误", JOptionPane.INFORMATION_MESSAGE); else panel.addcar(); }else if (e.getSource() == jmi4) { if(mainclass.panel==null) JOptionPane.showMessageDialog(this, "请开始模拟再进行设置", "错误", JOptionPane.INFORMATION_MESSAGE); else new set(); } } public static void main(String[] args) { new mainclass(); } } 多线程正确性测试: 我们在lamp类的run()方法中添加了一句控制台打印命令,每次进程运行时即会打印此进程的name成员 正确的打印结果应该为 0-1-2-3-4-0-1-2-3-4-.......-1-2-3-.... 控制台的输出结果为: 符合预测结果,实验完成!
temp=lightlist.get(i);
if(temp.status)
g.setColor(Color.green);
else
g.setColor(Color.RED);
g.fillOval(temp.x, temp.y, 20, 20);
}
}
}
welcomepanel类:
package traffic;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JPanel;
public class welcomepanel extends JPanel implements Runnable{ //开始界面
int info = 0;
Boolean isLive=true;
public void paint(Graphics g) {
super.paint(g);
g.fillRect(0, 0, 420,450);
g.setColor(Color.red);
g.setFont(new Font("微软雅黑", Font.BOLD, 30));
if (info % 2 == 0) {
g.drawString("多线程红绿灯模拟", 80, 150);
}
}
public void run() {
// TODO Auto-generated method stub
while (true) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
info++;
this.repaint();
if (isLive == false) {
break;
}
}
}
}
set类:
package traffic;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class set extends JFrame implements ActionListener { //设置界面
JLabel lab1,lab2,lab3,lab4;
JTextField jtext1,jtext2,jtext3,jtext4;
JPanel panel1,panel2,panel3,panel4;
JButton jb1,jb2;
int time1,time2,time3,time4;
public set(){
lab1=new JLabel("南北左转东西:");
lab2=new JLabel("东西直行:");
lab3=new JLabel("东西左转南北:");
lab4=new JLabel("南北直行:");
time1=mainclass.panel.lamp1.getgreentime();
time2=mainclass.panel.lamp2.getgreentime();
time3=mainclass.panel.lamp3.getgreentime();
time4=mainclass.panel.lamp4.getgreentime();
jtext1=new JTextField(String.valueOf(time1));
jtext2=new JTextField(String.valueOf(time2));
jtext3=new JTextField(String.valueOf(time3));
jtext4=new JTextField(String.valueOf(time4));
jb1=new JButton("确定");
jb1.addActionListener(this);
jb2=new JButton("取消");
jb2.addActionListener(this);
this.setLayout(new GridLayout(5,2,10,5));
this.add(lab1);
this.add(jtext1);
this.add(lab2);
this.add(jtext2);
this.add(lab3);
this.add(jtext3);
this.add(lab4);
this.add(jtext4);
this.add(jb1);
this.add(jb2);
this.setLocationRelativeTo(null);
this.setSize(200, 200);
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
this.setResizable(false);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==jb1) {
if(jtext1.getText().length()==0||jtext2.getText().length()==0||jtext3.getText().length()==0||jtext4.getText().length()==0)
JOptionPane.showMessageDialog(this, "请输入完整数据!", "错误", JOptionPane.INFORMATION_MESSAGE);
else {
mainclass.panel.lamp1.setgreentime(Integer.parseInt(jtext1.getText()));
mainclass.panel.lamp2.setgreentime(Integer.parseInt(jtext2.getText()));
mainclass.panel.lamp3.setgreentime(Integer.parseInt(jtext3.getText()));
mainclass.panel.lamp4.setgreentime(Integer.parseInt(jtext4.getText()));
this.dispose();
}
}else if(e.getSource()==jb2){
this.dispose();
}
}
}
mainclass主类:
package traffic;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
public class mainclass extends JFrame implements ActionListener{
static Mypanel panel;
JMenuBar jmb;
JMenu jm1, jm2;
JMenuItem jmi1, jmi2,jmi3,jmi4;
welcomepanel sp;
mainclass(){
this.setTitle("traffic lamp");
this.setSize(420,450);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jmb=new JMenuBar();
jm1=new JMenu("控制");
jm2=new JMenu("设置");
jmi1=new JMenuItem("开始模拟");
jmi1.addActionListener(this);
jmi2=new JMenuItem("退出模拟");
jmi2.addActionListener(this);
jmi3=new JMenuItem("随机生成小车");
jmi3.addActionLatGjbpistener(this);
jmi4=new JMenuItem("更改绿灯时间");
jmi4.addActionListener(this);
jm1.add(jmi1);
jm1.add(jmi2);
jm1.add(jmi3);
jm2.add(jmi4);
jmb.add(jm1);
jmb.add(jm2);
this.setJMenuBar(jmb);
sp=new welcomepanel();
Thread t=new Thread(sp);
t.start();
this.setContentPane(sp);
this.setLocationRelativeTo(null);
this.setResizable(false);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==jmi1) {
sp.isLive=false;
this.remove(sp);
panel = new Mypanel();
this.setContentPane(panel);
this.setVisible(true);
}else if(e.getSource()==jmi2) {
System.exit(0);
}else if(e.getSource()==jmi3) {
if(panel==null)
JOptionPane.showMessageDialog(this, "请开始模拟再生成小车", "错误", JOptionPane.INFORMATION_MESSAGE);
else panel.addcar();
}else if (e.getSource() == jmi4) {
if(mainclass.panel==null)
JOptionPane.showMessageDialog(this, "请开始模拟再进行设置", "错误", JOptionPane.INFORMATION_MESSAGE);
else new set();
}
}
public static void main(String[] args) {
new mainclass();
}
}
多线程正确性测试:
我们在lamp类的run()方法中添加了一句控制台打印命令,每次进程运行时即会打印此进程的name成员
正确的打印结果应该为 0-1-2-3-4-0-1-2-3-4-.......-1-2-3-....
控制台的输出结果为:
符合预测结果,实验完成!
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