private static void ints_array(){
		StackOfInts_array intarray = new StackOfInts_array(testsize);		
		
		for(int i = 0; i < testsize; i++){
			intarray.push(i);
			System.out.println("position = "+intarray.position+" ; Value = "+i);
		}
		
		System.out.println("-------------------------------------");
		
		for(int i = 0; i < testsize; i++){
			int result = intarray.pop();
			System.out.println("position = "+intarray.position+" ; Value = "+result);
		}
	}