Point2D(double x,double y){ System.out.println("点ホニャララは(" + x + "," + y + ")" ); } }
class Test{ public static void main(String[]args){ Point2D a = new Point2D(Double.parseDouble(args[0]),Double.parseDouble(args[1])); Point2D b = new Point2D(Double.parseDouble(args[2]),Double.parseDouble(args[3])); } }