How to rearrange positive and negative numbers in array in java language

How to rearrange positive and negative numbers in array in java language. There are you will learn how to rearrange positive and negative numbers using the loops & functions.

Take an example to rearrange the elements through a java program:

// How to rearrange positive and negative
// numbers in array in java language
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int[] arru = {-34, 38, -35, -36, 35, 49, 47, 41, -41, -41, 49};
        int arru_size = arru.length;

        // It's the array iteration
        System.out.print("------This is the given array before arrangement------\n\t");
        for (int i = 0; i<arru_size; i++) {
            System.out.print(arru[i] + ",\t");
        }
        System.out.print("\n\n");

        // It's the array iteration
        System.out.print("------This is the Re-arranged array------\n\t");
        // This will re-arrange the given array
        reArrangeNumbers(arru, 10);
        for (int i = 0; i<11; i++) {
            System.out.print(arru[i] + ",\t");
        }
        System.out.print("\n");
    }

    public static void alterNumber(int[] arru, int i, int j) {
        int temp = arru[i];
        arru[i] = arru[j];
        arru[j] = temp;
    }

    public static void splitNegativeElement(int[] arru, int size) {
        int temp, left = 0, right = size - 1;
        while (right > left) {
            while (arru[left]<0)
                left++;

            while (arru[right] > 0)
                right--;

            if (left<right) {
                alterNumber(arru, left, right);
            }
        }
    }

    // It's the driver function of
    // array element arrangements
    public static void reArrangeNumbers(int[] arru, int size) {
        int i, j;
        splitNegativeElement(arru, size);

        for (i = 0; arru[i]<0; i++);
        for (j = 1;
            (j<i) && (arru[j]<0); j += 2) {
            alterNumber(arru, i, j);
            i++;
        }
        return;
    }
}

Run Program

Output