String s = JOptionPane.showInputDialog(" Enter first name then grade:");

		String data[] = s.split("\\s+");
		String names[] = new String [data.length/2];
		int grades[] = new int [names.length];
			for(int i=0, k=0; i< names.length; i++){
				names[i] = data[k++];
				s= data[k++];
				if (s.matches("\\d+"))
					grades[i] = Integer.parseInt (s);
			else{
				showMsg(null,"error in input"+ s+"\nReplaceing");
		}
	}