Write a program that plays an interactive game of Hangman with its user. In gene
ID: 3547848 • Letter: W
Question
Write a program that plays an interactive game of Hangman with its user. In general, the
rules of Hangman are as follows:
? The object of the game is for the user to guess a secret word, given the number of
letters in the word. The number of letters is presented as a series of dashes or
underscores, like this: _ _ _ _ _ _
? At each turn, the user guesses one letter. If the guess is correct, the letter is
displayed in the correct position for the user to observe, like this: M _ _ M _ _
? If the guess is incorrect, the user
Explanation / Answer
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;
import java.lang.reflect.Array;
public class hangman extends Applet implements ActionListener{
static final int DEAD=13; // amount of errors till loss
private int errors; // amount of errors
private String message; // error or victorie
private String information; // information of the message
private String rword; // the rword
private StringBuffer gword;// the gword
private Button bStart; // Button "Restart"
private Button bGo; // Button "Go"
private TextField tfLetter; // letter box
private Font fnt; // common font
public void init(){
fnt = new Font( "Monospaced", 0, 12 );
setFont(fnt);
// Create textbox for guess letter
tfLetter = new TextField();
// Create buttons and labels
bStart = new Button("Restart");
bGo = new Button("Go");
// Add the graphical elements to the applet
add(bStart);
add(new Label("Guess a letter:"));
add(tfLetter);
add(bGo);
// Buttons are events:
bStart.addActionListener(this);
bGo.addActionListener(this);
// Start first game
initGame();
}
public void initGame(){
/* Setting the errors to 0 */
errors=0;
/* Enter the wordslist, separated by a | here: */
String str = "computer|radio|calculator|teacher|bureau|police|geometry|president|subject|country|enviroment|classroom|animals|province|month|politics|puzzle|instrument|kitchen|language|vampire|ghost|solution|service|software|virus25|security|phonenumber|expert|website|agreement|support|compatibility|advanced|search|triathlon|immediately|encyclopedia|endurance|distance|nature|history|organization|international|championship|government|popularity|thousand|feature|wetsuit|fitness|legendary|variation|equal|approximately|segment|priority|physics|branche|science|mathematics|lightning|dispersion|accelerator|detector|terminology|design|operation|foundation|application|prediction|reference|measurement|concept|perspective|overview|position|airplane|symmetry|dimension|toxic|algebra|illustration|classic|verification|citation|unusual|resource|analysis|license|comedy|screenplay|production|release|emphasis|director|trademark|vehicle|aircraft|experiment";
String[] temp;
/* delimiter */
String delimiter = "\|";
/* given string will be split by the argument delimiter provided. */
temp = str.split(delimiter);
/* Setting the seed */
Random randomGenerator = new Random();
/* Generating random number */
int randomInt = randomGenerator.nextInt(temp.length);
rword = new String(temp[randomInt]);
char positions[] = new char[rword.length()];
for (int i=0; i<rword.length(); i++) {
positions[i] = '.';
}
String s = new String(positions);
gword = new StringBuffer(s);
tfLetter.setText("");
// Delete the messages
message="";
information = "";
repaint();
}
public void paint(Graphics g) {
// Draw the hangman
int baseY = 250;
if (errors > 0){ // ground
g.drawLine(90, baseY,200,baseY);
}
if (errors > 1){ // bar up
g.drawLine(125,baseY,125,baseY-100);
}
if (errors > 2){
g.drawLine(110,baseY,125,baseY-15);
}
if (errors > 3){
g.drawLine(140,baseY,125,baseY-15);
}
if (errors > 4){ // side bar
g.drawLine(125,baseY-100,175,baseY-100);
}
if (errors > 5){
g.drawLine(125,baseY-85,140,baseY-100);
}
if (errors > 6){ // rope
g.drawLine(175,baseY-100,175,baseY-75);
}
if (errors > 7){ // body
g.drawOval(170,baseY-75,10,12);
}
if (errors > 8){
g.drawOval(170,baseY-65,15,25);
}
if (errors > 9){ // arms
g.drawLine(160,baseY-65,170,baseY-60);
}
if (errors > 10){
g.drawLine(183,baseY-60,193,baseY-65);
}
if (errors > 11){ // legs
g.drawLine(165,baseY-30,170,baseY-45);
}
if (errors > 12){
g.drawLine(183,baseY-45,193,baseY-30);
}
// Show the messages
g.drawString( message, 40, baseY+25 );
g.drawString( information, 25, baseY+45 );
g.drawString( new String (gword), 110, 60);
}
public void actionPerformed(ActionEvent e){
if (e.getSource() == bStart){
initGame();
}
if (e.getSource() == bGo){
processTurn();
// Delete the letter input box
tfLetter.setText("");
repaint();
}
}
private void processTurn(){
String s, t;
char a;
s = tfLetter.getText();
a = s.charAt(0);
if (!Character.isLetter(a)){
message="Only enter letters!";
return;
}
if (s.length()>1){
message="One letter at a time!";
return;
}
// Has the letter been guessed
t = new String(gword);
if (t.indexOf(s) != -1){
message="Letter has already been guessed";
return;
}
// If the letter doesn't occur in the rword
if (rword.indexOf(s) == -1){
message="";
errors++;
if (errors==DEAD){
message="You lost!";
information =
"Click on restart for another chance!";
}
return;
}
// Replace dots in gword with the found letter.
for (int i=0; i<rword.length(); i++){
if (rword.charAt(i) == a){
gword.setCharAt(i, a);
}
}
t = new String(gword);
// If all the dots have been filled, you win
if (t.indexOf('.') == -1){
message="You win!";
return;
}
// Delete message
message="";
repaint();
}
}
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