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Start your free trialArthur Kharzamanov
5,414 PointsI don't understand what the issue is with my throw method in the challenge exercise.
./GoKart.java:17: error: cannot find symbol if (laps > mBarsCount) { ^ symbol: variable laps location: class GoKart
public class GoKart {
public static final int MAX_BARS = 8;
private String mColor;
private int mBarsCount;
public GoKart(String color) {
mColor = color;
mBarsCount = 0;
}
public String getColor() {
return mColor;
}
public void drive() {
drive(1);
if (laps > mBarsCount) {
throw new IllegalArgumentException("Not enough battery remains");
} laps = mBarsCount;
}
public void drive(int laps) {
// Other driving code omitted for clarity purposes
mBarsCount -= laps;
}
public void charge() {
while (!isFullyCharged()) {
mBarsCount++;
}
}
public boolean isBatteryEmpty() {
return mBarsCount == 0;
}
public boolean isFullyCharged() {
return mBarsCount == MAX_BARS;
}
}
2 Answers
Trent Christofferson
18,846 PointsI think you are doing it in the wrong drive method since there is no laps variable in the drive your doing the throw in
Ted Dunn
43,783 PointsI think you need to write your code in the drive method which has the int laps argument supplied. The error you are getting is that the compiler does not recognize the variable called laps, this is because it is not declared until it is used in the argument.