java_中英文在不同编码下所占用的字节数（转）
Java代码
import java.io.UnsupportedEncodingException;public class EncodeTest {/*** 打印字符串在指定编码下的字节数和编码名称到控制台** @param s* 字符串* @param encodingName* 编码格式*/public static void printByteLength(String s, String encodingName) {System.out.print(“字节数：”);try {System.out.print(s.getBytes(encodingName).length);} catch (UnsupportedEncodingException e) {e.printStackTrace();}System.out.println(“;编码：” + encodingName);}public static void main(String[] args) {String en = “A”;String ch = “人”;// 计算一个英文字母在各种编码下的字节数System.out.println(“英文字母：” + en);EncodeTest.printByteLength(en, “GB2312″);EncodeTest.printByteLength(en, “GBK”);EncodeTest.printByteLength(en, “GB18030″);EncodeTest.printByteLength(en, “ISO-8859-1″);EncodeTest.printByteLength(en, “UTF-8″);EncodeTest.printByteLength(en, “UTF-16″);EncodeTest.printByteLength(en, “UTF-16BE”);EncodeTest.printByteLength(en, “UTF-16LE”);System.out.println();// 计算一个中文汉字在各种编码下的字节数System.out.println(“中文汉字：” + ch);EncodeTest.printByteLength(ch, “GB2312″);EncodeTest.printByteLength(ch, “GBK”);EncodeTest.printByteLength(ch, “GB18030″);EncodeTest.printByteLength(ch, “ISO-8859-1″);EncodeTest.printByteLength(ch, “UTF-8″);EncodeTest.printByteLength(ch, “UTF-16″);EncodeTest.printByteLength(ch, “UTF-16BE”);EncodeTest.printByteLength(ch, “UTF-16LE”);}}