public class Solution_Arrays{

	public int solution(int [] A) {
		int value =0;
		int counter=0;
		for(int i=0; i<A.length; i++) {
			if(A[i]==0) continue;
			value = A[i];
			for(int j=i+1; j<A.length;j++) {
				if(value==A[j]) {
					A[j]=0;
					counter++;
				}
			}
			if(counter==0) break;
		}
		return value;
	}


	public static void main(String[] args) {
		int arrayOfOds[] = new int[7];
		arrayOfOds[0]= 9;
		arrayOfOds[1]= 3;
		arrayOfOds[2]= 9;
		arrayOfOds[3]= 3;
		arrayOfOds[4]= 9;
		arrayOfOds[5]= 7;
		arrayOfOds[6]= 9;

		Solution_Arrays forUse = new Solution_Arrays();
		System.out.println("Your number of single occurence " + forUse.solution(arrayOfOds));
	}
}