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Thomas Katalenas
11,033 Pointsdrive is already there?!!
I understand there need to be other methods with different signatures. when I typed public void drive(int mBarsCount) {} it didn't work because it has the same number of types in the signature? int..as other int laps caused error.
GoKart.java
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 charge() {
while (!isFullyCharged()) {
mBarsCount = mBarsCount -1;
}
}
public boolean isBatteryEmpty() {
return mBarsCount == 0;
}
public boolean isFullyCharged() {
return mBarsCount == MAX_BARS;
}
}
9 Answers
Jeremy Hill
29,567 PointsIt's basically wanting you to add another drive() method that takes no arguments and makes 1 lap; so to do that you call the existing drive() method inside the new drive() method and passing the required argument (1 in this case) and that's it. If you still are not sure on how to do it here is what the code should look like:
public void drive(){
drive(1);
}
Thomas Katalenas
11,033 Pointsok thanks.. quick response!! Im marking You for best answer.
Jeremy Hill
29,567 PointsYou're welcome. Thank you as well :)
Tatenda Mushayakarara
2,447 Pointshow do you post your answer like that Jeremy? i am failing to respond to the questions coming in a helpful way. i am posting my answers as text.
Jeremy Hill
29,567 Pointsadd the accent mark that is above the tab key 3 times followed by the language you are coding, java in this instance and hit enter, then type or paste your code then hit enter again and type 3 more accent marks (above the tab key) by themselves then hit enter once more. That is how I do it.
Thomas Katalenas
11,033 Pointsyou add the ''' ```
Thomas Katalenas
11,033 Pointsso print
Thomas Katalenas
11,033 Pointsprint
Thomas Katalenas
11,033 Points``` before and after
Jeremy Hill
29,567 Pointsif you add the name of the language you are coding (e.g., java, html, etc.) after the first three accent marks before hitting enter it will automatically format the code for that language- FYI.
Tatenda Mushayakarara
2,447 Pointsyou are awesome
i was putting this''' thank you so much
Thomas Katalenas
11,033 PointsModified from Java in 21 Days
//Throw an exception
public void getPoint(int x, int y) throws NumberFormatException {
//center of method
}
//throwing multiple exceptions
public void storingPoint(int x, int y)
throws NumberFormatException, EOFexception {
}
// passing exceptions using constructor notice no return void
public WebRetriever() throws MalformedURLException{
//center of constructor
}
//makes it so any class works with WebRetriever objects deals with exception
*Rather than try and catch clauses you can use this technique it is up to your method that calls this method to deal with that exception,, hmm interesting they don’t have examples for that */
public void readFloat (String input) throws NumberFormatException {
float in = Float.parseFloat(input);
}
//ie. you want to print a message.