当我上完两个课时，我的老鼠没有动过
[英]My rat is not shown moving when I run both classes
问题描述
我有一个迷宫课和一个老鼠课。 他们都使用套接字使用9字符串协议进行通信，老鼠告诉迷宫它想如何移动。 迷宫移动它。 为了显示老鼠正在迷宫中移动，每次将老鼠在该特定路径上行驶时，我都将迷宫路径的背景色设置为红色。 但是，由于某种原因没有发生。 我不知道为什么。 请帮忙！
package TheMaze;
import java.util.*;
import java.awt.Color;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import java.net.*;
import java.awt.*;
import java.io.*;
public class TheMaze {
static JButton[][] jb;
//static String r1, r2, r3, r4, r5, r6, r7, r8, r9;
static String m1, m2, m3, m4, m5, m6, m7, m8, m9;
static int row = 0;
static int column = 3;
static char[][] mProtocol;
static JFrame jf = new JFrame("Mazifying Maze");
Container contain = new Container();
public TheMaze(int length, int width) {
jb = new JButton[length][width];
mProtocol = new char[length][width];
contain = new Container();
for (int x = 0; x < width; x++) {
for (int y = 0; y < length; y++) {
jb[y][x] = new JButton();
jf.add(jb[y][x]);
}
}
jb[2][0].setBackground(Color.black);
jb[4][0].setBackground(Color.black);
jb[2][97].setBackground(Color.black);
jb[2][96].setBackground(Color.black);
jb[2][95].setBackground(Color.black);
jb[2][94].setBackground(Color.black);
jb[2][93].setBackground(Color.black);
jb[2][92].setBackground(Color.black);
jb[2][91].setBackground(Color.black);
.
.
.
Just goes on and on.
for (int i = 0; i < 100; i++) {
for (int j = 0; j < 100; j++) {
if (jb[i][j].getBackground() == Color.black) {
mProtocol[i][j] = 'w';
} else {
mProtocol[i][j] = 'p';
}
}
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setLayout(new GridLayout(length, width));
jf.setSize(1400, 700);
jf.setVisible(true);
}
}
public static void ratMessage(String ratPos) {
System.out.println(ratPos);
String ratMessage = ratPos;
String r1 = ratMessage.substring(0, 1);
String r2 = ratMessage.substring(1, 2);
String r3 = ratMessage.substring(2, 3);
String r4 = ratMessage.substring(3, 4);
String r5 = ratMessage.substring(4, 5);
String r6 = ratMessage.substring(5, 6);
String r7 = ratMessage.substring(6, 7);
String r8 = ratMessage.substring(7, 8);
String r9 = ratMessage.substring(8, 9);
if (r2.equals('r')) {
jb[row - 1][column].setBackground(Color.red);
row = row - 1;
}
if (r4.equals('r')) {
jb[row][column - 1].setBackground(Color.red);
column = column - 1;
}
if (r6.equals('r')) {
jb[row][column + 1].setBackground(Color.red);
column = column + 1;
}
if (r8.equals('r')) {
jb[row + 1][column].setBackground(Color.red);
row = row + 1;
}
}
public static String mazeMessage() {
if (row - 1 < 0 && column - 1 < 0) {
m1 = "o";
m2 = "o";
m3 = "o";
m4 = "o";
m5 = "r";
m6 = mProtocol[row][column + 1] + "";
m7 = "o";
m8 = mProtocol[row + 1][column] + "";
m9 = mProtocol[row + 1][column + 1] + "";
} else if (row + 1 > 99 && column + 1 > 99) {
m1 = mProtocol[row - 1][column - 1] + "";
m2 = mProtocol[row - 1][column] + "";
m3 = "o";
m4 = mProtocol[row][column - 1] + "";
m5 = "r";
m6 = "o";
m7 = "o";
m8 = "o";
m9 = "o";
} else if (row - 1 < 0 && column + 1 > 99) {
m1 = "o";
m2 = "o";
m3 = "o";
m4 = mProtocol[row][column - 1] + "";
m5 = "r";
m6 = "o";
m7 = mProtocol[row + 1][column - 1] + "";
m8 = mProtocol[row + 1][column] + "";
m9 = "o";
} else if (row + 1 > 99 & column - 1 < 0) {
m1 = "o";
m2 = mProtocol[row - 1][column] + "";
m3 = mProtocol[row - 1][column + 1] + "";
m4 = "o";
m5 = "r";
m6 = mProtocol[row][column + 1] + "";
m7 = "o";
m8 = "o";
m9 = "o";
} else if (row - 1 < 0) {
m1 = "o";
m2 = "o";
m3 = "o";
m4 = "" + mProtocol[row][column - 1];
m5 = "r";
m6 = "" + mProtocol[row][column + 1];
m7 = mProtocol[row + 1][column - 1] + "";
m8 = mProtocol[row + 1][column] + "";
m9 = mProtocol[row + 1][column + 1] + "";
} else if (row + 1 > 99) {
m1 = mProtocol[row - 1][column - 1] + "";
m2 = mProtocol[row - 1][column] + "";
m3 = mProtocol[row - 1][column + 1] + "";
m4 = mProtocol[row][column - 1] + "";
m5 = "r";
m6 = mProtocol[row][column + 1] + "";
m7 = "o";
m8 = "o";
m9 = "o";
} else if (column - 1 < 0) {
m1 = "o";
m2 = mProtocol[row - 1][column] + "";
m3 = mProtocol[row - 1][column + 1] + "";
m4 = "o";
m5 = "r";
m6 = mProtocol[row][column + 1] + "";
m7 = "o";
m8 = mProtocol[row + 1][column] + "";
m9 = mProtocol[row + 1][column + 1] + "";
} else if (column + 1 > 99) {
m1 = mProtocol[row - 1][column - 1] + "";
m2 = mProtocol[row - 1][column] + "";
m3 = "o";
m4 = mProtocol[row][column - 1] + "";
m5 = "r";
m6 = "o";
m7 = mProtocol[row + 1][column - 1] + "";
m8 = mProtocol[row + 1][column] + "";
m9 = "o";
} else {
m1 = mProtocol[row - 1][column - 1] + "";
m2 = mProtocol[row - 1][column] + "";
m3 = mProtocol[row - 1][column + 1] + "";
m4 = mProtocol[row][column - 1] + "";
m5 = "r";
m6 = mProtocol[row][column + 1] + "";
m7 = mProtocol[row + 1][column - 1] + "";
m8 = mProtocol[row + 1][column] + "";
m9 = mProtocol[row + 1][column + 1] + "";
}
return m1 + m2 + m3 + m4 + m5 + m6 + m7 + m8 + m9;
}
public static void main(String[] args) {//throws IOException{
System.setProperty("java.util.Arrays.useLegacyMergeSort", "true");
TheMaze mz = new TheMaze(100, 100);
try {
ServerSocket svs = new ServerSocket(13000);
System.out.println("Has not Connected");
Socket socks = svs.accept();
System.out.println("Has Connected");
DataOutputStream p = new DataOutputStream(socks.getOutputStream());
InputStreamReader isr = new InputStreamReader(socks.getInputStream());
DataInputStream d = new DataInputStream(socks.getInputStream());
String theMazeMessage = "ooowrwwpw";
System.out.println("first message" + theMazeMessage);
p.writeUTF(theMazeMessage);
while (row != 99 && column != 87) {
System.out.println("in loop");// still going, not yet reached end of maze.
String recieving = d.readUTF();
System.out.println(recieving);
ratMessage(recieving);
p.writeUTF(theMazeMessage);
System.out.println(theMazeMessage);
}
socks.close();
p.close();
isr.close();
d.close();
} catch (IOException e) {
e.printStackTrace();
String theMazeMessage = m1 + m2 + m3 + m4 + m5 + m6 + m7 + m8 + m9;
}
}
}
和Rat类：
package therat;
import java.util.*;
import java.net.*;
import java.io.*;
import java.net.*;
public class TheRat {
static String m1, m2, m3, m4, m5, m6, m7, m8, m9;
static String theMazeMessage;
static String identifier;
public static void theMazeMessage(String mazePos) {
String theMazeMessage = mazePos;
m1 = theMazeMessage.substring(0, 1);
m2 = theMazeMessage.substring(1, 2);
m3 = theMazeMessage.substring(2, 3);
m4 = theMazeMessage.substring(3, 4);
m5 = theMazeMessage.substring(4, 5);
m6 = theMazeMessage.substring(5, 6);
m7 = theMazeMessage.substring(6, 7);
m8 = theMazeMessage.substring(7, 8);
m9 = theMazeMessage.substring(8, 9);
System.out.println(mazePos);
}
public static String Move() {
if (m8.equals("p")) {
identifier = goDown();
} else if (m2.equals("p")) {
identifier = goUp();
} else if (m4.equals("p")) {
identifier = goLeft();
} else if (m6.equals("p")) {
identifier = goRight();
}
return identifier;
}
public static String goDown() {
return m1 + m2 + m3 + m4 + 'p' + m6 + m7 + 'r' + m9;
}
public static String goUp() {
return m1 + 'r' + m3 + m4 + 'p' + m6 + m7 + m8 + m9;
}
public static String goLeft() {
return m1 + m2 + m3 + 'r' + 'p' + m6 + m7 + m8 + m9;
}
public static String goRight() {
return m1 + m2 + m3 + m4 + 'p' + 'r' + m7 + m8 + 9;
}
public static void main(String args[]) {
try {
Socket sox = new Socket("localhost", 13000);
System.out.println("Connected");
DataOutputStream ps = new DataOutputStream(sox.getOutputStream());
DataInputStream d = new DataInputStream(sox.getInputStream());
boolean done = false;
while (!done) {
System.out.println("in loop");
String mazeMessage = d.readUTF();
System.out.println("mazeMessage is " + mazeMessage);
theMazeMessage(mazeMessage);
String s = Move();
System.out.println(s);
ps.writeUTF(s);
ps.flush();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
1 个解决方案
解决方案1
3 2014-05-01 05:31:13
我可以看到的主要问题是在ratMessage方法中，您正在将String值与char
if (r2.equals('r'))
这是行不通的，因为String和char永远不能相等，因为它们是错误的类型。 如果相反，您将它们更改为更像...
if (r2.equals("r"))
您应该有更多的成功。
还有许多其他陷阱会引起一些悲伤。 static不是解决方案。 过度使用static会回来并狠狠地咬你。 在可能的情况下，您应该依靠传递需要与之交互的对象的有效引用。
就个人而言，我将设计一系列interface来描述预期的合同，例如ratMessage 。 您的UI将实现此接口，并且应将其引用传递给主要的“ comms”类，该类从大鼠中读取信息。
您也违反了Swing的单线程规则。 Swing要求必须在Event Dispatching Thread的上下文内完成对任何UI组件的所有交互和更新。 因为您是从“主”线程运行主循环并调用ratMessage然后更新按钮，所以您违反了此规则。
该解决方案可能涉及SwingWorker为了简化）或SwingUtilities.invokeLater用于快速更改）...
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