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Start your free trialKaran Shah
492 PointsIt is showing error, please rectify the mistake
Showing error, what is the mistake?
class Example {
public static void main(String[] args) {
GoKart kart = new GoKart("purple");
if (kart.isBatteryEmpty()) {
System.out.println("The battery is empty");
try {
kart.drive(42);
} catch(IllegalArgumentException iae) {
System.out.println( iae );
}
class GoKart {
public static final int MAX_BARS = 8;
private int barCount;
private String color;
private int lapsDriven;
public GoKart(String color) {
this.color = color;
}
public String getColor() {
return color;
}
public void charge() {
barCount = MAX_BARS;
}
public boolean isBatteryEmpty() {
return barCount == 0;
}
public boolean isFullyCharged() {
return MAX_BARS == barCount;
}
public void drive() {
drive(1);
}
public void drive(int laps) {
if (laps > barCount) {
throw new IllegalArgumentException("Not enough battery remains");
}
lapsDriven += laps;
barCount -= laps;
}
}
1 Answer
Steve Hunter
57,712 PointsHi there,
You've pretty much done that right, but you need to call getMessage()
on the iae
instance:
try{
kart.drive(42);
} catch(IllegalArgumentException iae){
System.out.println(iae.getMessage());
}
}
Steve
Karan Shah
492 PointsKaran Shah
492 PointsWhat is the reason to call getMessage()?
Steve Hunter
57,712 PointsSteve Hunter
57,712 PointsHi there,
The
getMessage
method returns a string representing the type of exception being thrown. Theiae
itself is an instance of an error so can't be printed itself, the string returned fromgetMessage()
can be printed.Steve.