ITmedia

Java Tips：正体不明のオブジェクトのクラスを調べるには？

正体不明のオブジェクトのクラスを調べるには？ J2SEのコアパッケージでも頻繁に利用されていますが，コレクションクラスを利用していると，格納されているオブジェクトがわからなくて戸惑うことがあります。コレクションはすべてObjectとして保持する ...
InfoWorld

Estimating Java Object Sizes with Instrumentation

Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...
Ars Technica

Java: Calling class methods for annoymous class object?

Hello I'm writing a file parser that needs to the results of it parsing into a particular class. In the name of good code re-use in the future I didn't want this ...
TheServerSide

How to apply the single responsibility principle in Java

What is the single responsibility principle? The single responsibility principle in Java demands that a class serves a single, clear purpose. Any attempt to add peripheral functionality to a ...