Java趣味Java网络机器人

package auto;import *;import java sql *;import java io *;import java util *;//import db *;public class test extends Thread{URL weburl;String urladdr;public test(){}public test(String urladdr URL weburl){this urladdr=urladdr;this weburl=weburl;}public test(String urladdr){try{this urladdr=urladdr;//weburl=new URL(urladdr);this start();}catch(Exception e){System out println(e toString());}}public InputStream getStream(String url){try{//urladdr=url;URL tempurl=new URL(url);return tempurl openStream();}catch(Exception e){System out println( hello );}return null;}public void run(){while(true){ try{getStream(urladdr);Thread sleep( );}catch(Exception e){}}}public String getStr(InputStream in){try{StringBuffer temp=null;BufferedReader buffer=new BufferedReader(new InputStreamReader(in));String tempstr= ;String strsum= ;while ((tempstr=buffer readLine())!=null){strsum=strsum+tempstr;}buffer close();//in close();return strsum;}catch(Exception e){System out println( shit );}return ;}public String getMTVURL(String ){ try{String temp= substring( lastIndexOf( / )+ );temp=temp substring( temp indexOf( \ ));temp= ?Id= ;+temp;temp=temp trim();return temp; }catch(Exception e){System out println(e toString());}return null;}public String getMTVname(String ){try{String temp= substring( indexOf( 作品名 )+ );temp=temp substring( temp indexOf( ));temp=temp trim();return temp;}catch(Exception e){System out println( hello );}return null;}public void insertdb(String MTVURL String MTVname){// DBoperate writer=new DBoperate();// String insert= insert into mtvList(mtvname mtvurl)values( +MTVname+ +MTVURL+ ) ;// writer exesql(insert);}public void getover(){InputStream in=getStream(urladdr);String content=getStr(in);String url=getMTVURL(content);String name=getMTVname(content);insertdb(url name);}public static void main(String[] avg){for(;;){try{test look=new test( ;);look getStream(look urladdr) close();Thread sleep( );}catch(Exception e){System out println(e toString());continue;}}}} lishixinzhi/Article/program/Java/hx/201311/26768

成都创新互联坚持“要么做到，要么别承诺”的工作理念，服务领域包括：成都网站设计、网站制作、企业官网、英文网站、手机端网站、网站推广等服务，满足客户于互联网时代的卢氏网站设计、移动媒体设计的需求，帮助企业找到有效的互联网解决方案。努力成为您成熟可靠的网络建设合作伙伴！

跪求大神荣光 回答下面的机器人的JAVA代码

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

public class WalkDistance {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

int n = in.nextInt();

for (int i = 0; i n; i++) {

String order = in.next();

System.out.println(new DecimalFormat("0.00").format(calDistance(order)));

}

in.close();

}

private static float calDistance(String order) {

char[] orderChar = order.toCharArray();

ListString orderList = new ArrayListString();

int num = 0;

for (int i = 0, len = orderChar.length; i len; i++) {

if (orderChar[i] = '0' orderChar[i] = '9') {

num++;

} else {

if (num == 0) {

orderList.add(String.valueOf(orderChar[i]));

} else {

StringBuffer sb = new StringBuffer();

for (int j = num; j 0; j--) {

sb.append(String.valueOf(orderChar[i - j]));

}

orderList.add(sb.toString());

orderList.add(String.valueOf(orderChar[i]));

num = 0;

}

}

if (i == len - 1 num != 0) {

StringBuffer sb = new StringBuffer();

for (int j = num - 1; j = 0; j--) {

sb.append(String.valueOf(orderChar[i - j]));

}

orderList.add(sb.toString());

}

}

Point curPoint = new Point(0, 0, 90);

for (int i = 0, len = orderList.size(); i len; i++) {

if ("R".equals(orderList.get(i))) {

curPoint.angle = (curPoint.angle - 90 + 360) % 360;

} else if ("L".equals(orderList.get(i))) {

curPoint.angle = (curPoint.angle + 90) % 360;

} else {

curPoint.setLocation(curPoint, orderList.get(i));

}

}

return curPoint.getDis();

}

static class Point {

private int x;

private int y;

private int angle;

private float dis;

public Point(int x, int y, int angle) {

this.x = x;

this.y = y;

this.angle = angle;

this.dis = (float) 0;

}

public void setLocation(Point point, String distance) {

if (point.angle == 0) {

point.x += Integer.valueOf(distance);

} else if (point.angle == 90) {

point.y += Integer.valueOf(distance);

} else if (point.angle == 180) {

point.x -= Integer.valueOf(distance);

} else {

point.y -= Integer.valueOf(distance);

}

}

public float getDis() {

return (float) Math.sqrt(this.x * this.x + this.y * this.y);

}

}

}

怎样用Java程序编写一个聊天机器人（自动和人聊天的程序）

是这样的错误么？

Frist.java:5: cannot resolve symbol

symbol : class Scanner

location: class Frist

Scanner input=new Scanner(System.in);

Scanner是JDK1.5开始才有的

这样的错误是因为JDK版本不够，不支持。。。

我用的就是1.4.2 所以是这样的错误

网站名称：java机器人编程代码 机器人编程的程序
标题网址：http://kswjz.com/article/dooojip.html