Write a static method removeDuplicates(ArrayList data) that will remove any duplicates of characters in the object data. Always keep the first copy of a character and remove subsequent ones.

Question

What will be an ideal response?

Answer 1

```
public static void removeDuplicates(ArrayList data){
for(int i=0; i int j = i+1;
while(j if(data.get(i) == data.get(j))
data.remove(j);
else
j++;
}
}
}
```

This code is in Methods.java.