public void push(int item){
		if(position == intarray.length){
			System.out.println("array size increasing");
			int[] temparray = new int[(intarray.length*2)]; 
			for(int i=0; i<position; i++){
				temparray[i] = intarray[i];
			}
			intarray = temparray;
		}
		intarray[position] = item;
		position++;
	}