/* * File: Hangman.java * ------------------ * This program will eventually play the Hangman game from * Assignment #4. */import acm.graphics.*;import acm.program.*;import acm.util.*;import java.awt.*;public class Hangman extends ConsoleProgram {    public void run() {        fordisplaying.reset();        String secretword=getsecretword(forguessing);//生成待猜的单词        int length=secretword.length();        char[] display=new char[length];//初始化用来指示被猜中情况的字符数组        for(int i=0;i<length;i++){            display[i]=‘-‘;        }        String fordisplay=new String(display);//此字符串用来显示被猜中的字母        println("Welcome to Hangman!");                int guesscount=8;        while(guesscount>0&&!fordisplay.equals(secretword)){            println("The word now looks like this : "+fordisplay);            println("You have "+guesscount+" guess left");            String guess=readLine("You guess :");            String lowerguess=guess.toLowerCase();//得到玩家输入字符的小写版本，用于对比是否猜中            String upperguess=guess.toUpperCase();//得到玩家输入字符的大写版本，目的同上            char guesschar=guess.charAt(0);//得到玩家输入的字符，注意前面得到的是字符串            char lowerguesschar=Character.toLowerCase(guesschar);//得到小写版本            char upperguesschar=Character.toUpperCase(guesschar);//得到大写版本            if(guess.length()>1||Character.isLetter(guesschar)!=true){//输入了不止一个字符，或者输入的字符非英文字母，则提示错误输入                println("Illegal guess,only one letter is accept");                continue;            }            if(secretword.indexOf(lowerguess)==-1&&secretword.indexOf(upperguess)==-1){//如果用大写和小写版本都无法在secretword里面检测到，说明并未猜中                println("There are no "+guess+" in the word.");                guesscount--;                fordisplaying.noteIncorrectGuess(guesschar, guesscount);            }            else{                println("That guess is correct.");                for(int i=0;i<length;i++){//用小写和大写字符逐个对比secretword中的字符，发生相符的情况则用该字符替换显示用的‘-’                    if(lowerguesschar==secretword.charAt(i)||upperguesschar==secretword.charAt(i)){                        display[i]=secretword.charAt(i);                                           }                }                String tem=new String(display);                fordisplay=tem;                fordisplaying.displayWord(fordisplay);            }                    }        if(guesscount==0){            println("You lose.");        }        if(fordisplay.equals(secretword)){            println("You win!");        }    }    public void init() {        add(fordisplaying);        }        private HangmanCanvas fordisplaying=new HangmanCanvas();    private HangmanLexicon forguessing= new HangmanLexicon();    private String getsecretword(HangmanLexicon a){        RandomGenerator rgen = RandomGenerator.getInstance();        int n=a.getWordCount();        int m=rgen.nextInt(0,n-1);        String secretword=a.getWord(m);        return secretword;            }}

* File: HangmanLexicon.java * ------------------------- * This file contains a stub implementation of the HangmanLexicon * class that you will reimplement for Part III of the assignment. */import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.util.ArrayList;import acm.util.*;public class HangmanLexicon {    // This is the HangmanLexicon constructor    public HangmanLexicon() {                            try {                rd = new BufferedReader(new FileReader("HangmanLexicon.txt"));            } catch (FileNotFoundException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }                        while(true){                            String line=null;                try {                    line = rd.readLine();                } catch (IOException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }                if(line==null) break;                strlist.add(line);                        }                        }    // rest of HangmanLexicon class.../** Returns the number of words in the lexicon. */    public int getWordCount() {        return strlist.size();    }/** Returns the word at the specified index. */    public String getWord(int index) {        return strlist.get(index);    }    private BufferedReader rd;    private ArrayList<String> strlist=new ArrayList<String>();}

* File: HangmanCanvas.java * ------------------------ * This file keeps track of the Hangman display. */import acm.graphics.*;public class HangmanCanvas extends GCanvas {/** Resets the display so that only the scaffold appears */    public void reset() {        removeAll();        GLine beam=new GLine(getWidth()/2-144,18,getWidth()/2,18);        GLine rope=new GLine(getWidth()/2,18,getWidth()/2,36);        GLine scaffold=new GLine(getWidth()/2-144,18,getWidth()/2-144,378);                    add(scaffold);        add(rope);        add(beam);    }    private void addhead(){        GOval head=new GOval(getWidth()/2-HEAD_RADIUS,36,2*HEAD_RADIUS,2*HEAD_RADIUS);        add(head);    }    private void addbody(){        GLine body=new GLine(getWidth()/2,36+2*HEAD_RADIUS,getWidth()/2,36+2*HEAD_RADIUS+BODY_LENGTH);        add(body);    }    private void addleftarm(){        GLine leftarm1=new GLine(getWidth()/2,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD,getWidth()/2-UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD);        GLine leftarm2=new GLine(getWidth()/2-UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD,getWidth()/2-UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD+LOWER_ARM_LENGTH);        add(leftarm1);        add(leftarm2);    }    private void addrightarm(){        GLine rightarm1=new GLine(getWidth()/2,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD,getWidth()/2+UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD);        GLine rightarm2=new GLine(getWidth()/2+UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD,getWidth()/2+UPPER_ARM_LENGTH,36+2*HEAD_RADIUS+ARM_OFFSET_FROM_HEAD+LOWER_ARM_LENGTH);        add(rightarm1);        add(rightarm2);    }    private void addleftleg(){        GLine leftleg1=new GLine(getWidth()/2,36+2*HEAD_RADIUS+BODY_LENGTH,getWidth()/2-HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH);        GLine leftleg2=new GLine(getWidth()/2-HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH,getWidth()/2-HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH);        add(leftleg1);        add(leftleg2);    }    private void addrightleg(){        GLine rightleg1=new GLine(getWidth()/2,36+2*HEAD_RADIUS+BODY_LENGTH,getWidth()/2+HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH);        GLine rightleg2=new GLine(getWidth()/2+HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH,getWidth()/2+HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH);        add(rightleg1);        add(rightleg2);    }    private void addleftfoot(){        GLine leftfoot=new GLine(getWidth()/2-HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH,getWidth()/2-HIP_WIDTH-FOOT_LENGTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH);        add(leftfoot);    }    private void addrightfoot(){        GLine rightfoot=new GLine(getWidth()/2+HIP_WIDTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH,getWidth()/2+HIP_WIDTH+FOOT_LENGTH,36+2*HEAD_RADIUS+BODY_LENGTH+LEG_LENGTH);            add(rightfoot);    }/** * Updates the word on the screen to correspond to the current * state of the game.  The argument string shows what letters have * been guessed so far; unguessed letters are indicated by hyphens. */    public void displayWord(String word) {        current.setLabel(word);        add(current,getWidth()/2-144,getHeight()-40);    }/** * Updates the display to correspond to an incorrect guess by the * user.  Calling this method causes the next body part to appear * on the scaffold and adds the letter to the list of incorrect * guesses that appears at the bottom of the window. */    public void noteIncorrectGuess(char letter,int guesscount) {        if(guesscount==7){            addhead();        }        if(guesscount==6){            addbody();        }        if(guesscount==5){            addleftarm();        }        if(guesscount==4){            addrightarm();        }        if(guesscount==3){            addleftleg();        }        if(guesscount==2){            addrightleg();        }        if(guesscount==1){            addleftfoot();        }        if(guesscount==0){            addrightfoot();        }        incorrectguess.setLabel(incorrectguess.getLabel()+letter);        add(incorrectguess,getWidth()/2-144,getHeight()-18);    }/* Constants for the simple version of the picture (in pixels) */    private GLabel current=new GLabel("");    private GLabel incorrectguess=new GLabel("");    private static final int SCAFFOLD_HEIGHT = 360;    private static final int BEAM_LENGTH = 144;    private static final int ROPE_LENGTH = 18;    private static final int HEAD_RADIUS = 36;    private static final int BODY_LENGTH = 144;    private static final int ARM_OFFSET_FROM_HEAD = 28;    private static final int UPPER_ARM_LENGTH = 72;    private static final int LOWER_ARM_LENGTH = 44;    private static final int HIP_WIDTH = 36;    private static final int LEG_LENGTH = 108;    private static final int FOOT_LENGTH = 28;}