# gambler.java

• 12-06-2010, 07:39 AM
Kragelj
gambler.java
/************************************************** ***********************
* Compilation: javac Gambler.java
* Execution: java Gambler stake goal N
*
* Simulates a gambler who start with 50\$ stake and place fair \$1 bets
* until she goes broke or reach 250\$ goal. Keeps track of the number of
* times he wins and the number of bets he makes. Run the experiment N
* times, averages the results, and prints them out.
*
* % java Gambler 50 250 1000
* Percent of games won = 19.0
* Avg # bets = 9676.302
*
* % java Gambler 50 150 1000
* Percent of games won = 31.9
* Avg # bets = 4912.13
*
* % java Gambler 50 100 1000
* Percent of games won = 49.6
* Avg # bets = 2652.352
*
************************************************** ***********************/
I need the rest of code in Main class. Anyone can help me??

public class Gambler {

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 T = 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 N times
for (int t = 0; t < T; t++) {

// do one gambler's ruin simulation
int cash = stake;
while (cash > 0 && cash < goal) {
bets++;
if (Math.random() < 0.5) cash++; // win \$1
else cash--; // lose \$1
}
if (cash == goal) wins++; // did gambler go achieve desired goal?
}

// print results
System.out.println(wins + " wins of " + T);
System.out.println("Percent of games won = " + 100.0 * wins / T);
System.out.println("Avg # bets = " + 1.0 * bets / T);
}

}
• 12-06-2010, 10:29 AM
DarrylBurke
Quote:

I need the rest of code in Main class. Anyone can help me??
No, you're supposed to do your own homework.
How To Ask Questions The Smart Way

db
• 12-06-2010, 10:38 AM
JosAH
Quote:

Originally Posted by Kragelj
Code:

```        // repeat N times         for (int t = 0; t < T; t++) {```

Why do I find this funny?

kind regards,

Jos