Sort array by number symbol, negative should all go left and positive should all go right

SortIntArray.java

import java.util.Arrays;

/**
 * Created by luog on 22/07/2014.
 */
public class SortIntArray {
    private static int[] ia;

    private static void initArray(String[] args) {
        if (args.length > 0) {
            ia = new int[args.length];
            for (int i = 0; i < args.length; ++i) {
                ia[i] = Integer.parseInt(args[i]);
            }
        } else {
            ia = new int[]{2, -2, 3, 1, -4, -5};
//            int len = 23;
//            ia = new int[len];
//            for (int i = 0; i < len; ++i) {
//                ia[i] = _.random(C.range(-20, 20));
//            }
        }
    }

    private static void sortArray() {
        int l = ia.length;
        int pLastNegative = -1;
        for (int j = l - 1; j >= 0; --j) {
            if (ia[j] < 0) {
                pLastNegative = j;
                break;
            }
        }
        if (pLastNegative == -1) return;
        int pNonNegative = -1;
        long temp = Long.MAX_VALUE;
        for (int i = 0; i < pLastNegative + 1; ++i) {
            if (ia[i] < 0) {
                if (pNonNegative > -1) {
                    if (temp == Long.MAX_VALUE) {
                        int t = ia[i];
                        ia[i] = ia[pNonNegative];
                        ia[pNonNegative] = t;
                    } else {
                        ia[pNonNegative] = ia[i];
                        ia[i] = (int)temp;
                        temp = Long.MAX_VALUE;
                    }
                    pNonNegative = pNonNegative + 1;
                }
            } else {
                if (pNonNegative == -1) {
                    pNonNegative = i;
                } else {
                    if (temp == Long.MAX_VALUE) {
                        temp = ia[i];
                        ia[i] = ia[i - 1];
                    } else {
                        int t = (int)temp;
                        temp = ia[i];
                        ia[i] = t;
                    }
                }
            }
            System.out.println("i: " + i + "\tp: " + pNonNegative + "\tt:" + temp);
            printArray();
        }
    }

    private static void printArray() {
        System.out.println(Arrays.toString(ia));
    }

    public static void main(String[] args) {
        initArray(args);
        printArray();
        sortArray();
        printArray();
    }


}