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Peter Price
4,007 PointsA problem with my code in task 2 of 2 of the second quiz
Hi,
Does anyone know what is wrong with the code? It just answers "try again"
public class GoKart {
public static final int MAX_BARS = 8;
private String mColor;
private int mBarsCount;
public String goKart;
public GoKart(String color) {
mColor = color;
GoKart goKart = new GoKart ("red");
mBarsCount = 0;
}
public boolean isBatteryEmpty(){
return mBarsCount == 0;
}
public boolean isFullyCharged(){
return mBarsCount == MAX_BARS;
}
public String getColor() {
return mColor;
}
public void charge() {
}
}
4 Answers
Michael Hess
24,512 PointsHi Peter,
It looks like there is a GoKart object declared in the constructor.
It may help to see the completed challenge. This is a full solution to both tasks:
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 boolean isBatteryEmpty(){
if(mBarsCount == MAX_BARS){
return false;
}
return true;
}
public boolean isFullyCharged(){
return mBarsCount == MAX_BARS;
}
public String getColor() {
return mColor;
}
public void charge() {
mBarsCount = MAX_BARS;
}
}
Hope this helps! If you have any further questions feel free to ask!
Michael Hess
24,512 PointsHi Peter,
Everything looks okay, but the isBatteryEmpty() method should be modified.
Try this:
public boolean isBatteryEmpty(){
if(mBarsCount == MAX_BARS){
return false;
}
return true;
}
If you have any other questions feel free to ask! Hope this helps!
Peter Price
4,007 PointsHi Michael,
Thanks so much for your reply. I tried your code in mine, like so:
public class GoKart {
public static final int MAX_BARS = 8;
private String mColor;
private int mBarsCount;
public String goKart;
public GoKart(String color) {
mColor = color;
GoKart goKart = new GoKart ("red");
mBarsCount = 0;
}
public boolean isBatteryEmpty(){
if(mBarsCount == MAX_BARS){
return false;
}
return true;
}
public boolean isFullyCharged(){
return mBarsCount == MAX_BARS;
}
public String getColor() {
return mColor;
}
}
But it says:
JavaTester.java:89: error: cannot find symbol
kart.charge();
^
symbol: method charge()
location: variable kart of type GoKart
JavaTester.java:123: error: cannot find symbol
kart.charge();
^
symbol: method charge()
location: variable kart of type GoKart
2 errors
I will try and find an answer, but I would appreciate it if you could have a look and try and find the problem.
Peter Price
4,007 PointsAnother thought,
Do I need the isFullyCharged and getColor methods (which are at the bottom of the first code block).
Peter Price
4,007 PointsThanks Michael!! That was a great help.
Michael Hess
24,512 PointsMy pleasure!
Peter Price
4,007 PointsPeter Price
4,007 PointsThis is the Java Objects, Helper Methods quiz question: "Now create a helper method named isFullyCharged. It should return true if the GoKart is at max capacity. "