Java优学网URL类入门解析：轻松掌握网络编程基础，快速上手URL操作
try{URLmyBlog=newURL("https://www.uxue.com/java");System.out.println("协议："+myBlog.getProtocol());System.out.println("主机："+myBlog.getHost());...
Java优学网多态实现教程：轻松掌握方法重载与运行时多态，避免ClassCastException错误
publicclassCalculator{//重载示例：同名方法，参数不同publicintadd(inta,intb){returna+b;}publicdoubleadd(doublea,doubleb){returna+b;...