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Start your free trialRussell Brookman
3,118 PointsUsing a method signature they want me to make the go kart run for 1 lap.
They have given me this code to start with.
public void drive(int laps) { // Other driving code omitted for clarity purposes mBarsCount -= laps;
I don't know if anyone can help me but if you can I would appreciate it.
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(int laps) {
// Other driving code omitted for clarity purposes
mBarsCount -= laps;
}
public void drive(String[] args) {
mBarsCount ++;
}
public void charge() {
while (!isFullyCharged()) {
mBarsCount++;
}
}
public boolean isBatteryEmpty() {
return mBarsCount == 0;
}
public boolean isFullyCharged() {
return mBarsCount == MAX_BARS;
}
}
1 Answer
jcorum
71,830 PointsRussell, overloading a method means to write one with the same name and return type, but a different set of parameters (type and/or number). Here they want a second drive() method with no parameters:
public void drive() {
drive(1);
}
You could have the statement inside the method's block read mLaps -= 1, but that would repeat code in the other method. So the preferred way is to just call the other method with the value 1. Then no code is repeated, and your code is DRY.