我在学校做一个项目,如果我们应该模拟下注方案,我们就可以使用此代码。
http://introcs.cs.cs.princeton.edu/java/13flow/gambler.java.html
但是,我们的任务是更改此代码,以便每个下注的下注都应该打印出我们在该下注之后的每一美元的" *"。
因此,例如,如果我们在第一个下注之后赢得1美元,并且我们以5美元的股份开始,那么该程序应打印6"*",然后在下一个下注,反之亦然。p>我尝试了不同的事情,但似乎可以使它正常工作,因此我问你们在这里寻求一些建议/帮助。
这就是我到目前为止提出的;
public class GamblerStars {
public static void main(String[] args) {
int stake = Integer.parseInt(args[0]); // gambler's stating bankroll
int goal = Integer.parseInt(args[1]); // gambler's desired bankroll
int trials = Integer.parseInt(args[2]); // number of trials to perform
int bets = 0; // total number of bets made
int wins = 0; // total number of games won
// repeat trials times
for (int t = 0; t < trials; t++) {
int cash = stake;
int star = 0;
while (cash > 0 && cash < goal) {
bets++;
if (Math.random() < 0.5) {
cash++; // win $1
while (star <= cash) {
star++;
System.out.print("*");
}
} else {
cash--; // lose $1
while (star <= cash) {
star--;
System.out.print("*");
}
}
System.out.println("");
}
if (cash == goal)
wins++; // did gambler go achieve desired goal?
}
System.out.println(wins);
}
}
我会更改您的块:
// it's always a good idea to parametize your conditions
while ((cash > 0) && (cash < goal)) {
bets++;
if (Math.random() < 0.5) {
cash++; // win $1
}
else { // move the else up here, so it's parallel to the win
cash--; // lose $1
}
// you only need one block to print the stars, not two
while (star <= cash) {
star++;
System.out.print("*");
}
// you don't need to use a parameter to just print a newline
System.out.println();
}
至少应该帮助您发现问题。