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Start your free trialRobert Walsh
802 PointsStuck on This Challenge (Java Objects) Decrementing and While Loops
Need help with the syntax...
public class GoKart {
public static final int MAX_ENERGY_BARS = 8;
private String mColor;
private int mBarsCount;
public GoKart(String color) {
mColor = color;
mBarsCount = 0;
}
public String getColor() {
return mColor;
}
public void charge() {
mBarsCount = MAX_ENERGY_BARS;
}
public boolean isBatteryEmpty() {
return mBarsCount == 0;
}
public boolean isFullyCharged() {
boolean wasDispensed = false;
if(!isFullyCharged()){
mBarsCount--;
}
return mBarsCount == MAX_ENERGY_BARS;
while(mBarsCount.isFullyCharged()){
}
}
3 Answers
Jess Sanders
12,086 PointsUse the following snippet of code as your example to follow in changing the implementation details of the charge method:
public boolean dispense() {
boolean wasDispensed = false;
if (!isEmpty()) {
mPezCount--;
wasDispensed = true;
}
return wasDispensed;
}
- Instead of if, use while
- increment, rather than decrement
- The charge method doesn't need to return a boolean, so ignore all of the code involving the boolean wasDispensed
Keep isFullyCharged as it was from the previous challenge.
public boolean isFullyCharged() {
return mBarsCount == MAX_ENERGY_BARS;
}
Michael C
3,230 Pointsuse in the while loop following logic -> "!isBatteryEmpty" - which means "If the battery is NOT Empty then return true". While this condition is actually true you can increment mBarCount by "1". If the Battery then is finally full the logic will return "false" and the while loop will break - in fact it will stop charging up the battery
Jeeya M
16,839 PointsAlso you wrote boolean wasDispensed = false; which isn't apart of this activity, only in the video
Robert Walsh
802 PointsRobert Walsh
802 PointsOkay, so let's use our new isFullyCharged helper method to change our implementation details of the charge method. Let's make it so it will only charge until the battery reports being fully charged. Let's use the ! symbol and a while loop. Inside the loop increment mBarsCount.