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检测Java对象所占内存大小 (转载)

Don't pay the price for hidden class fields By Vladimir Roubtsov, JavaWorld.com, 08/16/02 Recently, I helped design a Java server application that resembled an in-memory databas...

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Java实现的简单加密类

package crypt; import java.security.*; public class Crypt { public static String md5(String data) { return crypt("MD5", data); } public static String sha1(String data) { return ...

2010/11/07 12:03
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