2010年8月10号---Java容器之LinkedHashMap和byte方面的一些应用

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本文介绍了如何将字节数组(byte[])转换为字符串类型(String)，并提供了使用UTF-8编码的具体示例。此外，还概述了LinkedHashMap的特点与应用场景，包括其在插入顺序保持和快速访问方面的优势。

convert from byte[] to String type.

example:


    byte[] arg0; //here ,for example ,this byte as a parameter ,so has not initialized

    String arg=null;

    try{
        arg = new String(arg0,"UTF-8");
    }catch(UnsupportEncodingException e){
         e.printStackTrace();  
    }

about type LinkedHashMap:

below content come from <<Thinking in Java---The Fouth Edition>>

summary:

A Map is a way to associate not integral values,but objects with other objects.

HashMaps are designed for rapid access,whereas a TreeMap keeps its keys in sorted order,and thus is not as fast as a HashMap. A LinkedHashMap keeps its elements in insertion order,but provides rapid access with hasing.