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Use double to store bets

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The original basic allowed fractional bets.
This commit is contained in:
Dave Burke
2022-02-11 13:02:22 -06:00
parent df86d49bb7
commit db1e32a314
3 changed files with 36 additions and 11 deletions
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12
10_Blackjack/java/src/Game.java
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@@ -47,15 +47,15 @@ public class Game {
}
while(true) {
int[] bets = new int[nPlayers]; // empty array initialized with all '0' valuses.
double[] bets = new double[nPlayers]; // empty array initialized with all '0' valuses.
while(!betsAreValid(bets)){
userIo.println("BETS:");
for(int i = 0; i < nPlayers; i++) {
// Note that the bet for player "1" is at index "0" in the bets
// array and take care to avoid off-by-one errors.
// TODO the BASIC version allows fractional bets (e.g. '1.5') of arbitrary precision
// We can use a float if we want--the original basic has floating point errors. Or we could use BigDecimal if we really want to fix that.
bets[i] = userIo.promptInt("#" + (i + 1)); //TODO: If there isn't a need for a separate Bets in the future, combine these two lines and convert to enhanced FOR loop
// We can use a double if we want--the original basic has doubleing point errors. Or we could use BigDecimal if we really want to fix that.
bets[i] = userIo.promptDouble("#" + (i + 1)); //TODO: If there isn't a need for a separate Bets in the future, combine these two lines and convert to enhanced FOR loop
players.get(i).setCurrentBet(bets[i]);
}
}
@@ -244,14 +244,14 @@ public class Game {
}
/**
* Validates that all bets are between 1 and 500 (inclusive).
* Validates that all bets are between 0 (exclusive) and 500 (inclusive). Fractional bets are valid.
*
* @param bets The array of bets for each player.
* @return true if all bets are valid, false otherwise.
*/
public boolean betsAreValid(int[] bets) {
public boolean betsAreValid(double[] bets) {
return Arrays.stream(bets)
.allMatch(bet -> bet >= 1 && bet <= 500);
.allMatch(bet -> bet > 0 && bet <= 500);
}
}