Method swap

src/main/java/de/bwaldvogel/liblinear/Linear.java:2019–2023

(double[] array, int idxA, int idxB)

    }

    static void swap(double[] array, int idxA, int idxB) {
        double temp = array[idxA];
        array[idxA] = array[idxB];
        array[idxB] = temp;
    }

    static void swap(int[] array, int idxA, int idxB) {
        int temp = array[idxA];