Question

Why am I getting this error for “this(10)” even if the first statement is a constructor call. I am using eclipse.

public class MaxIndependentSet {
    private ArrayList<Integer> inputArr = new ArrayList<Integer>();

    public void MaxIndependentSet(int size) {
        inputArr.ensureCapacity(size);
    }

    public void MaxIndependentSet() {
        this(10);
    }
}

Answer 1

You’ve added an incorrect return type void into your constructor.

The return type of a constructor is its class type, and it is declared implicitly, like so:

public MaxIndependentSet() {
    // blah
}