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对于 Java 语言开发人员来说，信息过量是一个真正的问题。要了解的东西简直太多了。本文就是一个列表。它包含了每个专业的 Java 语言程序员在书架或浏览器书签中必备的最重要的书籍和网站。 对于 Java 语言开发人员来说，信息过量是一个真正的问题。每个新入行的程序员都要面临一个令人畏缩的挑战：要进入的行业是一个具有海量知识的行业。要了解的东西简直太多了。对于有经验的老手来说，情况只有些微好转。知识量总在增大，仅仅跟上进度就是一个挑战。如果有一份专业人士必备的书籍和网站列表该有多好!本文就是这个列表。它包含了每个专

In Java, everything is pass-by-valueQ: Can you provide some authoritative quotation to support the saying "In Java, everything is pass-by-value"?A: From The Java Programming Language, by James Gosling et al. 3rd edition (pg. 56): quote: Some people will say incorrectly that objects are passed "by reference." In programming language design, the term pass by reference properly means that when an argument is passed to a function, the invoked function gets a reference to the orig

Java::override vs overloadJava语法如此多娇，引无数英雄竞折腰。 (1)override:class Parent{ Object func(Number n){ ... } } class Child extends Parent{ Object func(Number n){ ... } } This is so-called override. override的含义，就是俗称的“多态” Child.func和Parent.func可以看作是占用了虚函数指针表里面的同一个Entry.即：Child.func覆盖了Parent.func. Parent vtable Entry 1:Parent.func Child vtable Entry 1:Child func override是程序运行时动态决定调用哪个method，所以称为：多态性. (2)o