操作程序(NumberGuessBean.java)
// Number Guess Game
// Written by Jason Hunter, CTO, K&A Software
// jasonh@kasoftware.com, http://www.servlets.com
// Copyright 1999, K&A Software
// Distributed by Sun Microsystems with permission
package num;
import java.util.*;
public class NumberGuessBean {
int answer;
boolean success;
String hint;
int numGuesses;
public NumberGuessBean() {
reset();
}
public void setGuess(String guess) {
numGuesses++;
int g;
try {
g = Integer.parseInt(guess);
}
catch (NumberFormatException e) {
g = -1;
}
if (g == answer) {
success = true;
}
else if (g == -1) {
hint = "a number next time";
}
else if (g < answer) {
hint = "higher";
}
else if (g > answer) {
hint = "lower";
}
}
public boolean getSuccess() {
return success;
}
public String getHint() {
return "" + hint;
}
public int getNumGuesses() {
return numGuesses;
}
public void reset() {
answer = Math.abs(new Random().nextInt() % 100)
+ 1;
success = false;
numGuesses = 0;
}
}
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