private void addParticle() throws NumberFormatException, IOException {
		double[] coordList = new double[dimensionList.length];
		double mass = 0D;
		for (int count = 0; count < dimensionList.length; count++) {
			System.out.println("Enter " + dimensionList[count].toString() + "-coord:");
			coordList[count] = Double.parseDouble(Wrapper.getUserInput());
			System.out.println();
		}
		System.out.print("Enter mass: ");
		mass = Double.parseDouble(Wrapper.getUserInput());
		System.out.println();
		Particle myParticle = new Particle(new Vector(coordList), mass, this);	
		shapeList.add(shapeList.size(), myParticle);
	}