how to move all negative number of array in java

1static void arrangebySign(int a[],int s){
2		
3		int j=0,temp;
4		for(int i=0;i<s;i++){
5			if(a[i]<0){
6				if(i != j){
7					temp=a[i];
8					a[i]=a[j];
9					a[j]=temp;
10				}
11				j++;
12			}
13			
14		}
15		
16	}