摘要： From OOP to List... OPP Inherit → Abstract Class → Interface → Polymorphic →Static Inherit: public class A extends B{ super(); super(B's method()); // 阅读全文

摘要： First Day Summary SE Basic concept. Data Type long num1 = 30L; // not l, This is convention. float num2 = 51.2f; int x = 10; //dec value is 10 in deci 阅读全文

摘要： MarkDown stduy 标题： #+ space +name writing style hello!world. hello!world. hello!world. hello!world. hello!wrold! hello!wrold! hello!wrold! hello!wrold 阅读全文