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物件導向程式設計 - R1 (更新inG)

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【0923】 人物左右撞牆
《Girl》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class baby here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class baby extends Actor
{
    /**
     * Act - do whatever the baby wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    private int step = 2;
    private int count=0;
    private label mylabel;

    public baby(label l)
   {
        mylabel = l;
    }
   
   
    public void act()
    {
        // Add your action code here.
        move();
        if(yoo()) bounce();
    }   
   
    public void move(){
       setLocation(getX()+step, getY());
    }
   
    public void bounce(){
        step=-step;
        count++;
        mylabel.setText("Score:" + count);
    }
    public boolean yoo(){
        return (getX()==0) || (getX()==getWorld().getWidth() -1) ;
    }
   
}

《Label》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class label here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class label extends Actor
{
    /**
     * Act - do whatever the label wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act()
    {
        // Add your action code here.
    }
    public label (){
        GreenfootImage img = new  GreenfootImage(100, 20);
        img.drawString("Yooooooooooo", 20, 20);
        setImage(img);
    }
   
        public label (String text){
        GreenfootImage img = new  GreenfootImage(text.length()*20, 20);
        img.drawString(text, 20, 20);
        setImage(img);
    }
   
        public void setText(String text)
    {
        GreenfootImage  img = getImage();
        img.clear();
        img.drawString(text, 20,20);
    }
}

《World》

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Worldmy here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Worldmy extends World
{

    /**
     * Constructor for objects of class Worldmy.
     *
     */
    public Worldmy()
    {   
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(120, 80, 5);
        label mylabel=new label("Count:0");
        addObject(mylabel, 100,2);
        baby mybaby=new baby(mylabel);
        addObject(mybaby, 20,50);
    }
}
【0930】 隨堂考：點擊青蛙亂跳&隨機無限增值青蛙
《frog》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class frog here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class frog extends Actor
{
    /**
     * Act - do whatever the frog wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act()
    {
        // Add your action code here.
                if (Greenfoot.mouseClicked(this))
        {
            int x = Greenfoot.getRandomNumber(getWorld().getWidth()+1);
            int y = Greenfoot.getRandomNumber(getWorld().getHeight()+1);
            this.setLocation(x,y);    //青蛙亂跳
            World myworld = getWorld();
            frog f = new frog();
            myworld.addObject(f,x,y);    //亂數增加一個青蛙到世界中
        }
    }   
}
《myWorld》

『作業』女孩亂亂走 
《Girl》

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class baby here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class baby extends Actor
{
    /**
     * Act - do whatever the car wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
   private int movement=5;
    private label mylabel;
    private int count=0;

    public baby(label l)
    {
        mylabel=l;
        //
    }
    
    public void act() 
    {
        move();
        if (atEdge()) bounce();
     
    }    
    
    public void move()
    {
        move(5);//
        if(Greenfoot.getRandomNumber(100)<10)
        {
            turn(Greenfoot.getRandomNumber(90)-45);
        }
        if(getX()<=10||getX()>=getWorld().getWidth()-10)
        {
            turn(280);
        }
        if(getY()<=5||getY()>=getWorld().getHeight()-5)
        {
            turn(180);
        }
    }
    public void bounce()
    {
        movement=-movement;
        count++;
        mylabel.setText("Fight:"+count);
    }
    public boolean atEdge()
    {
        return (getX()==0)||(getY()==getWorld().getWidth()-1);//
        
    }
   
   

}
《World》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class myWorld here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class brick extends World
{

    /**
     * Constructor for objects of class brick.
     * 
     */
  
     public brick()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1); 
        label mylabel=new label("Count:0");
        addObject(mylabel, 100,2);//
        baby mybaby=new baby(mylabel);
        addObject(mybaby, 20,50);
    }

}
《label》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class label here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class label extends Actor
{
    /**
     * Act - do whatever the label wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public label() 
    {
        GreenfootImage img=new GreenfootImage(110,90);
        img.drawString("GOGO",30,30);
        setImage(img);
    }    
    public label(String text)
    {
    GreenfootImage img=new GreenfootImage(text.length()*20,20);
        img.drawString(text,20,20);
        setImage(img);
    }
    public void setText(String text)
    {
    
        GreenfootImage  img = getImage();
        img.clear();
        img.drawString(text, 20,20); 
    }    

}
【1007】射擊遊戲
《Rock》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Rock here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Rock extends Actor
{
    /**
     * Act - do whatever the Rock wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        // Add your action code here.
        int x = this.getX()+10;
        this.setLocation(x,this.getY());
        if (getX() == this.getWorld().getWidth() -1)
        {
            getWorld().removeObject(this);
        }
    }    
}

《Space》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Space here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Space extends World
{

    /**
     * Constructor for objects of class Space.
     * 
     */
    public Space()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1); 
        Rocket r = new Rocket();
        this.addObject(r,300,400);
    }
    
        public void act() 
    {
        if(Greenfoot.getRandomNumber(100)<3)
            this.addObject(new Rock(),0,20);
        } 
}


《Beeper》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * A bullet to be shot at asteroids.
 * 
 * The Shot moves to the top of the screen and then expires. If it hits an asteroid
 * on the way, it destroys the asteroid, and then expires immediately.
 */
public class Beeper  extends Actor
{
    private Rocket myShip;

    /**
     * Constructor for a Shot. You must specify the ship the shot comes from.
     */
    public Beeper(Rocket a)
    {
        this.myShip = a;
    }

    /**
     * Act - do whatever the Shot wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        int ypos = getY();
        if (ypos > 0) {
            ypos = ypos - 5;
            setLocation(getX(), ypos);
            Actor Rock = getOneIntersectingObject(Rock.class);
            if (Rock != null) {
                // We've hit an asteroid!
                hitAnAsteroid();
                this.getWorld().removeObject(Rock);
                this.getWorld().removeObject(this);
            }
        }
        else {
            // I reached the top of the screen
            this.getWorld().removeObject(this);
        }
    }
    
    /**
     * This method gets called (from the act method, above) when the shot hits an
     * asteroid. It needs to do only one thing: increase the score counter.
     * (Everything else, such as removing the asteroid which was hit, is dealt
     * with in the act method).
     */
    private void hitAnAsteroid()
    {
        // What goes here????
        // We want to call the "bumpCount" method from the Counter class -
        //Counter c=((Space)this.getWorld()).getCounter();
        //c.bumpCount(20);
        // but how??!!
    }
}

《Rocket》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Rocket here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Rocket extends Actor
{
    /**
     * Act - do whatever the Rocket wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        // Add your action code here.
        if(Greenfoot.isKeyDown("space"))
        {
            this.getWorld().addObject(new Beeper(this),this.getX(),this.getY());
        }
    }    
}
【1014】星星背景

《Space》
import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
import java.awt.*;
/**
 * Write a description of class Space here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Space extends World
{

    /**
     * Constructor for objects of class Space.
     * 
     */
    public Space()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1); 
        Rocket r = new Rocket();
        this.addObject(r,300,400);
        GreenfootImage bg = getBackground();
        bg.setColor(Color.BLACK);
        bg.fill();
        createStars(2000);
   }
    
        public void act() 
    {
        if(Greenfoot.getRandomNumber(100)<3)
            this.addObject(new Rock(),0,20);
        } 
        
private void createStars(int numberOfStars)
    {
        GreenfootImage bg = getBackground();
        for (int i = 0; i < numberOfStars; i++) {
            bg.setColor(new Color(Greenfoot.getRandomNumber(255),Greenfoot.getRandomNumber(255),Greenfoot.getRandomNumber(255)));
            int x = Greenfoot.getRandomNumber( getWidth() );
            int y = Greenfoot.getRandomNumber( getHeight() );
            bg.fillOval(x, y, 2, 2);
        }
    }
}

【1028】
《Hello》
public class Hello{

public static void main(String args[])
{
Student s=new Student();
System.out.println("學號為==>" + s.getStudentID() + "姓名為==>" + s.getStudentName());

Student s1=new Student("s001","望安安",18);
System.out.println("學號為==>" + s1.getStudentID() + "姓名為==>" + s1.getStudentName());
s1.setStudentID("s003");
System.out.println("學號為==>" + s1.getStudentID() + "姓名為==>" + s1.getStudentName() + "年齡:" + s1.getAge());

if (s1.isGrownUp())
System.out.println("大白目");
else
System.out.println("小屁孩");
}

}
class myFirst{

}
《Student》
public class Student{
String stu_id;
String stu_name;
int age; 


public Student(){}

public Student(String i, String n, int a){
stu_id=i;
stu_name=n;
age = a;
}

public String getStudentID(){

return stu_id; 
} 

public void setStudentID(String id){
stu_id=id; 
} 

public String getStudentName() {
return stu_name;

}

public void setStudentName(String n) {
stu_name=n;

}

public int getAge(){
return age;
}

public void setAge(int a){
age = a;
}

public boolean isGrownUp(){
if(age >=18)
return true;
else
return false;
}
}
 
--
import java.io.*;
public class testTream {
 /**
  * @param args
  */
 public static void main(String[] args) throws IOException{
  // TODO Auto-generated method stub
  BufferedReader buf;
  String str;
  /*buf=new BufferedReader(new InputStreamReader(System.in));
  str1=buf.readLine();
  while((str1=buf.readLine())!=null){
   System.out.println("你剛剛輸入的:"+str1);*/
  
  int num1 = Integer.parseInt(buf.readLine());
  int num2 = Integer.parseInt(buf.readLine());
  int sum = 0;
    for (num1 ; num1 <=num2 ; num1++){
     sum= num1+sum;
     str = str + sum + ",";
  }
  System.out.println("您輸入:"+str);
  System.out.println("總和為:"+sum);
 }
}
--

public class testOperator {
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  boolean x = false;
  int y = 10;
  if (x = (y < 12)){
   System.out.println("進入if");
  }
 }
}
--
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.*;
public class qq {
 /**
  * @param args
  */
 public static void main(String[] args)throws IOException {
  // TODO Auto-generated method stub
  String id = "s001";
  String pwd = "123";
  
  BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
  System.out.println("請輸入帳號：");
  String your_id = buf.readLine();
  System.out.println("你剛剛輸入的帳號：" + your_id);
  
  System.out.println("請輸入密碼：");
  String your_pwd = buf.readLine();
  System.out.println("你剛剛輸入的密碼：" + your_pwd);
  
  if (id.compareTo(your_id) == 0 && pwd.compareTo(your_pwd) == 0){
    System.out.println("登入成功");
     }
     else{
    System.out.println("帳號密碼錯誤");
      }
 }
}
  
     
--
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.*;
public class hh {
 /**
  * @param args
  */
 public static void main(String[] args)throws IOException {
  // TODO Auto-generated method stub
  
  System.out.println("請輸入分數：");
  BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
  String sc = buf.readLine();
  int num = Integer.parseInt(sc);
  System.out.println("你剛剛輸入的分數：" + num);
  
  if (num < 60)
   {
    System.out.println("不及格");
   }
  else if (num >= 60 && num < 70)
   {
    System.out.println("丙");
   }
  else if (num >= 70 && num < 80)
   {
    System.out.println("乙");
   }
  else if (num >= 80 && num < 90)
   {
    System.out.println("甲");
   }
  else
   {
    System.out.println("優");
   }
  }
 }
--

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