Sorting array objects in Processing 2.0+

pbvillaflores

I am getting this error while trying to sort an array of objects:

the method sort (byte[]) in the type PApplet is not applicable for the arguments (sketch_124453.Word[])

To support sort, I saw that one has to implement Comparable, hence my class code below.

But its not working so i wonder if sorting object arrays is possible with Processing 2.0+? Is this solution approach that I have done specific only to Processing 1.0.

class Word implements Comparable  {
  String s;
  int n=0;
  Word(String theWord) {
    s = theWord;
    n = 1;
  }
  //if we want to sort based on the n value of Word object:
  int compareTo(Object o)
  {
    Word other=(Word)o;
    if(other.n>n)  return -1;
    if(other.n==n) return 0;
    return 1;
  }

  int compareTo(Word o)
  {    
    if(o.n>n)  return -1;
    if(o.n ==n) return 0;
    return 1;
  }
}

quark

In your class n always has the value 1 so all Word objects are the same so sorting will not occur.

I am getting this error while trying to sort an array of objects:

What type of objects?

PhiLho

You don't even show us how you try to sort your array!

Processing' sort() function works only with arrays of primitives. To sort a Java array, you have to use Arrays.sort(yourArray); (sort in place).

Note also you have to get rid of the second compareTo, useless and can confuse the compiler.

GoToLoop

Processing's sort() function works only with arrays of primitives.

You've forgotten String[]! O:-) Therefore, if @pbvillaflores needs only to sort() String objects,
there's no need to go all the way down to implement Comparable!

Although particularly I prefer java.util.Arrays.sort(), b/c it acts upon the passed array
rather than instantiate another 1 as Processing's sort() does!

PhiLho

Well, String is almost a primitive! ;-)
Obviously, the OP wants to sort his array of Word objects.