代码主要为以下：
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package com.lovo.game.frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import javax.swing.JFrame;
import com.lovo.game.role.Fire;
import com.lovo.game.role.GameMap;
import com.lovo.game.role.ZhaoYun;
import com.lovo.game.util.TrackerInit;
public class GameStartFrame extends JFrame implements Runnable{
private Image memoryImage;
private Graphics memoryGraphics;
public static boolean isRun = true;
private static GameMap gameMap = new GameMap();
private ZhaoYun zy = new ZhaoYun();
private Fire fire = new Fire();
public GameStartFrame(){
this.setSize(900,700);
this.setVisible(true);
this.setDefaultCloseOperation(3);
//设置居中
this.setLocationRelativeTo(null);
//初始化双缓冲画布、画笔
this.memoryImage = this.createImage(900,700);
this.memoryGraphics = this.memoryImage.getGraphics();
//媒体追踪器
MediaTracker tracker = new MediaTracker(this);
TrackerInit.initImage(tracker);
//启动线程
Thread th = new Thread(this);
th.start();
}
public static void main(String[] args) {
GameStartFrame game = new GameStartFrame();
}
public void run() {
while(isRun){
this.flushFrame();
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
private void flushFrame(){
gameMap.drawMap(memoryGraphics);
zy.drawImage(memoryGraphics);
fire.drawImage(memoryGraphics);
//将双缓冲画布中的图片显示在窗体
this.getGraphics().drawImage(this.memoryImage,0,0,this);
}
}
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package com.lovo.game.role;
import java.awt.Graphics;
import java.awt.Image;
public class GameMap {
public static Image mapImg;
public static int mapx;
public void drawMap(Graphics memoryGraphics){
mapx -=5;
if(mapx =-17100){
mapx = -17100;
}
memoryGraphics.drawImage(mapImg,mapx,0,null);
}
}
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package com.lovo.game.role;
import java.awt.Graphics;
import java.awt.Image;
import com.lovo.game.util.MoveImageChange;
public class Fire {
public static Image[]fireImage;
private int x =100;
private int y =300;
private int width = 200;
private int height = 130;
private MoveImageChange moveChange = new MoveImageChange(3);
public void drawImage(Graphics memoryGraphics){
Image img = moveChange.imageChange(fireImage);
memoryGraphics.drawImage(img,this.x,this.y,this.width,this.height,null);
}
}
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package com.lovo.game.util;
import java.awt.MediaTracker;
import com.lovo.game.role.Fire;
import com.lovo.game.role.GameMap;
import com.lovo.game.role.ZhaoYun;
public class TrackerInit {
public static void initImage(MediaTracker tracker){
//初始化地图图片
GameMap.mapImg = CutImage.getSingleImage("image/map.jpg", tracker);
//赵云
ZhaoYun.zyImage = CutImage.cutOneImage("image/boss/playSpear.png",18, 236, 134,tracker);
//火
Fire.fireImage = CutImage.cutOneImage("image/fireImg.png", 6, 283, 161,tracker);
try {
//0组的图片全部等待加载完毕后，在显示
tracker.waitForID(0);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
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package com.lovo.game.util;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.CropImageFilter;
import java.awt.image.FilteredImageSource;
import java.awt.image.ImageProducer;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
public class CutImage {
public static Image[][] cutManyImage(String filePath, int row, int col,
int imageWidth, int imageHight,MediaTracker tracker) {
Image[][] img = new Image[row][col];
ImageIcon imIcon = new ImageIcon(filePath);// 创建图像数组对象
Image imgTemp = imIcon.getImage();// 创建源图像
// 为源 图象获取ImageProducer源
ImageProducer sourceProducer = imgTemp.getSource();
for (int i = 0; i row; i++) {
for (int j = 0; j col; j++) {
// 创建图片分割图像对象,第一、二个参数为分割图像起始坐标。后两个参数为图像大小
CropImageFilter cropImg = new CropImageFilter(j * imageWidth, i * imageHight,imageWidth, imageHight);
ImageProducer imgProducer = new FilteredImageSource(sourceProducer, cropImg);
img[i][j] = new JFrame().createImage(imgProducer);
tracker.addImage(img[i][j], 0);
}
}
return img;
}
public static Image[] cutOneImage(String filePath,int col,
int imageWidth, int imageHight,MediaTracker tracker) {
Image[] img = new Image[col];
ImageIcon imIcon = new ImageIcon(filePath);// 创建图像数组对象
Image imgTemp = imIcon.getImage();// 创建源图像
// 为源 图象获取ImageProducer源
ImageProducer sourceProducer = imgTemp.getSource();
for (int j = 0; j col; j++) {
// 创建图片分割图像对象,第一、二个参数为分割图像起始坐标。后两个参数为图像大小
CropImageFilter cropImg = new CropImageFilter(j * imageWidth, 0,imageWidth, imageHight);
ImageProducer imgProducer = new FilteredImageSource(sourceProducer, cropImg);
img[j] = new JFrame().createImage(imgProducer);
tracker.addImage(img[j], 0);
}
return img;
}
public static Image getSingleImage(String imgPath,MediaTracker tracker){
Image img = new ImageIcon(imgPath).getImage();
tracker.addImage(img, 0);
return img;
}
}
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package com.lovo.game.util;
import java.awt.Image;
public class MoveImageChange {
private int count;
private Image img;
private int frequency;
private int loopCount;
public MoveImageChange(int frequency){
this.frequency=frequency;
}
public MoveImageChange(int frequency,int count){
this.frequency=frequency;
this.count = count;
}
public Image imageChange(Image[] images){
if(img==null){//初始图片为第一张图片
img=images[0];
}
count++;
if(countfrequency){//当记数器大于频率时
count=0;
loopCount++;
if(loopCount = images.length){//图片下标越界时
loopCount=0;
}
img=images[loopCount];
}
return img;
}
public void setLoopCount(int loopCount){
this.loopCount = loopCount;
}
}
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package com.lovo.game.role;
import java.awt.Graphics;
import java.awt.Image;
import com.lovo.game.util.MoveImageChange;
public class ZhaoYun {
public static Image[] zyImage;
private int x =600;
private int y =300;
private int width =200;
private int height =130;
private MoveImageChange moveChange = new MoveImageChange(3);
public void drawImage(Graphics memoryGraphics){
Image img = moveChange.imageChange(zyImage);
memoryGraphics.drawImage(img,this.x,this.y,this.width,this.height,null);
最大化图形消失的问题也解决了，注意类名首字母大写
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;
public class Map {
public static void main(String[] args) {
new Draw();
}
}
class Draw extends JFrame{
ArrayListPoint points = new ArrayListPoint();
JPanel p=new JPanel();
Draw(){
add(p,BorderLayout.CENTER);
p.addMouseListener(new MyMouse());
this.addWindowStateListener(new MyWindow());
this.setResizable(true);
validate();
setBounds(50,50,500,400);
setVisible(true);
}
public void paint (Graphics g){
for(int i = 0;ipoints.size();i++){
g.fillOval(points.get(i).x, points.get(i).y, 30, 30);
}
}
private class MyWindow implements WindowStateListener{
public void windowStateChanged(WindowEvent arg0) {
repaint();
}
}
private class MyMouse extends MouseAdapter{
public void mouseClicked(MouseEvent e) {
points.add(e.getPoint());
repaint();
}
}
}
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);
}
}
}
int 后面不能跟字符串。。并且for循环也不知道想要表达什么
public class Test {
public static void main(String[] args) {
double b = Math.random() * 50;
int a = (int) b + 50;
for (int i = 0; i = a; i++) {
if (i == 0) {
System.out.println("出生！");
} else {
System.out.println(i + "岁了！");
}
}
}
}
public class Human{
public String _name;
public String _wugong;
Human(){_name="";_wugong="";}
Human(String name, String wugong){_name=name;_wugong=wugong;}
public static void main(String[] args) {
java.util.Scanner sc = new java.util.Scanner(System.in);
java.util.ArrayListHuman list = new java.util.ArrayListHuman();
String name, wugong;
System.out.println("输入人名和武功(输入人结束)");
while(true){
System.out.print("人名：");
name = sc.next();
boolean flag = false;
for(int i = 0; i list.size(); ++i) {
if(list.get(i)._name.equals(name)){
System.out.println("此人已经存在，请重新输入");
flag = true;
}
}
if(flag) continue;
if(name.equals("人")) break;
System.out.print("武功：");
wugong = sc.next();
list.add(new Human(name, wugong));
}
System.out.println("输入人查询，输入人名查询武功，输入exit退出");
while(true){
name = sc.next();
if(name.equals("exit")) break;
if(name.equals("人")) {
System.out.println("人名：");
for(int i = 0; i list.size(); ++i) {
System.out.println(list.get(i)._name);
}
} else {
boolean flag = false;
int k = 0;
for(int i = 0; i list.size(); ++i) {
if(list.get(i)._name.equals(name)) {flag = true; k = i;}
}
if(flag) System.out.println(name + "的武功为:" + list.get(k)._wugong);
else System.out.println("查无此人");
}
}
System.out.println("谢谢使用");
}
}
测试结果是：
输入人名和武功(输入人结束)
人名：黄蓉
武功：打狗棒法
人名：郭靖
武功：降龙十八掌
人名：小龙女
武功：玉女素心剑法
人名：杨过
武功：玉女素心剑法
人名：郭靖
此人已经存在，请重新输入
人名：人
输入人查询，输入人名查询武功，输入exit退出
人
人名：
黄蓉
郭靖
小龙女
杨过
黄蓉
黄蓉的武功为:打狗棒法
我
查无此人
exit
谢谢使用
import java.awt.*;
class MyFrame extends Frame{
MyPanel p = new MyPanel();
public MyFrame(){
this.add(p);
this.setSize(300,300);
//省略了关闭窗口的代码
this.setVisible(true);
}
public static void main(String[] args){
new MyFrame();
}
class MyPanel extends Panel
{
public void paint(Graphics g){
g.drawLine(0,0,300,300);
}
}
}