java处理字符的函数

package com.test.bs;

import java.io.UnsupportedEncodingException;

public class UnicodeTest2 {

public static void main(String[] args) {

String a = "哈哈";

try {

byte[] gb2312 = a.getBytes("GB2312");

byte[] utf = a.getBytes("UTF-8");

for (int i = 0; i < gb2312.length; i++) {

System.out.print(gb2312[i]);

}

System.out.println();

for (int i = 0; i < utf.length; i++) {

System.out.print(utf[i]);

}

System.out.println();

System.out.println(new String(gb2312));

System.out.println(new String(utf));

System.out.println(System.getProperty("file.encoding"));//当前文件的编码方式

System.out.println(new String(utf, "UTF-8"));

System.out.println(new String(gb2312, "UTF-8"));

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

}

}