跪求大神荣光 回答下面的机器人的JAVA代码

import java.text.DecimalFormat;

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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);

}

}

}

用java程序实现

机器人类(源类)：

public class Robot {

public void cry(){

System.out.println("机器人叫");

}

public void run(){

System.out.println("机器人跑");

}

}

狗类(目标类)：

public class Dog {

public void cry(){

System.out.println("像狗一样叫");

}

public void run(){

System.out.println("像狗一样跑");

}

}

适配器类(继承源类并重写它的方法，目标类作为属性)：

public class Adaper extends Robot{

private Dog dog;

public Adaper(Dog dog) {

this.dog=dog;

}

@Override

public void cry() {

dog.cry();

}

@Override

public void run() {

dog.run();

}

}

测试类

public class Test {

public static void main(String[] args) {

Dog dog=new Dog();

Robot robot=new Adaper(dog);

robot.cry();

robot.run();

}

}

java什么是响应代码?

这个不是java有的东西.这是http协议的东西.

http简单的说,包括request和response.

request就是请求,包括请求头,请求参数,请求地址等...

response就是响应.同样包括头,参数,还有一个就是响应码.

响应码代表这次的响应大概是什么结果.(只是大概,并一定准确)

而且响应码超级多,大概的有:

404:告诉你,这个地址不存在.

500:告诉你,我这出bug了.

200:一切顺利,请求成功.

太多太多了...你可以查响应码的解释.

一般情况下,响应码是准确的,但我为啥说不一定准确呢.因为对方给你返回响应时,他可以指定响应码.(有些人喜欢修改http协议的默认设置.比如有些奇葩就想把404理解成响应成功.他就可以设置404.或者他设置2019都可以.)