这里面包含了一百多个JAVA源文件

				There are two ways of obtaining a Constructor object from a Class object. 
				    // By obtaining a list of all Constructors object.
				    Constructor[] cons = cls.getDeclaredConstructors();
				    for (int i=0; i				        Class[] paramTypes = cons[i].getParameterTypes();
				        process(cons[i]);
				    }
				    
				    // By obtaining a particular Constructor object.
				    // This example retrieves java.awt.Point(int, int).
				    try {
				        Constructor con = java.awt.Point.class.getConstructor(new Class[]{int.class, int.class});
				        process(con);
				    } catch (NoSuchMethodException e) {
				    }